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Sj-Si
2024-01-11 16:37:35 -05:00
parent 0726a6e12e cb5b335acd
commit 036500223d
117 changed files with 3368 additions and 4917 deletions
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35
extensions-builtin/Lora/network.py
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@@ -3,6 +3,9 @@ import os
from collections import namedtuple
import enum
import torch.nn as nn
import torch.nn.functional as F
from modules import sd_models, cache, errors, hashes, shared
NetworkWeights = namedtuple('NetworkWeights', ['network_key', 'sd_key', 'w', 'sd_module'])
@@ -115,6 +118,29 @@ class NetworkModule:
if hasattr(self.sd_module, 'weight'):
self.shape = self.sd_module.weight.shape
self.ops = None
self.extra_kwargs = {}
if isinstance(self.sd_module, nn.Conv2d):
self.ops = F.conv2d
self.extra_kwargs = {
'stride': self.sd_module.stride,
'padding': self.sd_module.padding
}
elif isinstance(self.sd_module, nn.Linear):
self.ops = F.linear
elif isinstance(self.sd_module, nn.LayerNorm):
self.ops = F.layer_norm
self.extra_kwargs = {
'normalized_shape': self.sd_module.normalized_shape,
'eps': self.sd_module.eps
}
elif isinstance(self.sd_module, nn.GroupNorm):
self.ops = F.group_norm
self.extra_kwargs = {
'num_groups': self.sd_module.num_groups,
'eps': self.sd_module.eps
}
self.dim = None
self.bias = weights.w.get("bias")
self.alpha = weights.w["alpha"].item() if "alpha" in weights.w else None
@@ -137,7 +163,7 @@ class NetworkModule:
def finalize_updown(self, updown, orig_weight, output_shape, ex_bias=None):
if self.bias is not None:
updown = updown.reshape(self.bias.shape)
updown += self.bias.to(orig_weight.device, dtype=orig_weight.dtype)
updown += self.bias.to(orig_weight.device, dtype=updown.dtype)
updown = updown.reshape(output_shape)
if len(output_shape) == 4:
@@ -155,5 +181,10 @@ class NetworkModule:
raise NotImplementedError()
def forward(self, x, y):
raise NotImplementedError()
"""A general forward implementation for all modules"""
if self.ops is None:
raise NotImplementedError()
else:
updown, ex_bias = self.calc_updown(self.sd_module.weight)
return y + self.ops(x, weight=updown, bias=ex_bias, **self.extra_kwargs)

4
extensions-builtin/Lora/network_full.py
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@@ -18,9 +18,9 @@ class NetworkModuleFull(network.NetworkModule):
def calc_updown(self, orig_weight):
output_shape = self.weight.shape
updown = self.weight.to(orig_weight.device, dtype=orig_weight.dtype)
updown = self.weight.to(orig_weight.device)
if self.ex_bias is not None:
ex_bias = self.ex_bias.to(orig_weight.device, dtype=orig_weight.dtype)
ex_bias = self.ex_bias.to(orig_weight.device)
else:
ex_bias = None

10
extensions-builtin/Lora/network_glora.py
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@@ -22,12 +22,12 @@ class NetworkModuleGLora(network.NetworkModule):
self.w2b = weights.w["b2.weight"]
def calc_updown(self, orig_weight):
w1a = self.w1a.to(orig_weight.device, dtype=orig_weight.dtype)
w1b = self.w1b.to(orig_weight.device, dtype=orig_weight.dtype)
w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
w1a = self.w1a.to(orig_weight.device)
w1b = self.w1b.to(orig_weight.device)
w2a = self.w2a.to(orig_weight.device)
w2b = self.w2b.to(orig_weight.device)
output_shape = [w1a.size(0), w1b.size(1)]
updown = ((w2b @ w1b) + ((orig_weight @ w2a) @ w1a))
updown = ((w2b @ w1b) + ((orig_weight.to(dtype = w1a.dtype) @ w2a) @ w1a))
return self.finalize_updown(updown, orig_weight, output_shape)

12
extensions-builtin/Lora/network_hada.py
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@@ -27,16 +27,16 @@ class NetworkModuleHada(network.NetworkModule):
self.t2 = weights.w.get("hada_t2")
def calc_updown(self, orig_weight):
w1a = self.w1a.to(orig_weight.device, dtype=orig_weight.dtype)
w1b = self.w1b.to(orig_weight.device, dtype=orig_weight.dtype)
w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
w1a = self.w1a.to(orig_weight.device)
w1b = self.w1b.to(orig_weight.device)
w2a = self.w2a.to(orig_weight.device)
w2b = self.w2b.to(orig_weight.device)
output_shape = [w1a.size(0), w1b.size(1)]
if self.t1 is not None:
output_shape = [w1a.size(1), w1b.size(1)]
t1 = self.t1.to(orig_weight.device, dtype=orig_weight.dtype)
t1 = self.t1.to(orig_weight.device)
updown1 = lyco_helpers.make_weight_cp(t1, w1a, w1b)
output_shape += t1.shape[2:]
else:
@@ -45,7 +45,7 @@ class NetworkModuleHada(network.NetworkModule):
updown1 = lyco_helpers.rebuild_conventional(w1a, w1b, output_shape)
if self.t2 is not None:
t2 = self.t2.to(orig_weight.device, dtype=orig_weight.dtype)
t2 = self.t2.to(orig_weight.device)
updown2 = lyco_helpers.make_weight_cp(t2, w2a, w2b)
else:
updown2 = lyco_helpers.rebuild_conventional(w2a, w2b, output_shape)

2
extensions-builtin/Lora/network_ia3.py
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@@ -17,7 +17,7 @@ class NetworkModuleIa3(network.NetworkModule):
self.on_input = weights.w["on_input"].item()
def calc_updown(self, orig_weight):
w = self.w.to(orig_weight.device, dtype=orig_weight.dtype)
w = self.w.to(orig_weight.device)
output_shape = [w.size(0), orig_weight.size(1)]
if self.on_input:

18
extensions-builtin/Lora/network_lokr.py
View File

@@ -37,22 +37,22 @@ class NetworkModuleLokr(network.NetworkModule):
def calc_updown(self, orig_weight):
if self.w1 is not None:
w1 = self.w1.to(orig_weight.device, dtype=orig_weight.dtype)
w1 = self.w1.to(orig_weight.device)
else:
w1a = self.w1a.to(orig_weight.device, dtype=orig_weight.dtype)
w1b = self.w1b.to(orig_weight.device, dtype=orig_weight.dtype)
w1a = self.w1a.to(orig_weight.device)
w1b = self.w1b.to(orig_weight.device)
w1 = w1a @ w1b
if self.w2 is not None:
w2 = self.w2.to(orig_weight.device, dtype=orig_weight.dtype)
w2 = self.w2.to(orig_weight.device)
elif self.t2 is None:
w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
w2a = self.w2a.to(orig_weight.device)
w2b = self.w2b.to(orig_weight.device)
w2 = w2a @ w2b
else:
t2 = self.t2.to(orig_weight.device, dtype=orig_weight.dtype)
w2a = self.w2a.to(orig_weight.device, dtype=orig_weight.dtype)
w2b = self.w2b.to(orig_weight.device, dtype=orig_weight.dtype)
t2 = self.t2.to(orig_weight.device)
w2a = self.w2a.to(orig_weight.device)
w2b = self.w2b.to(orig_weight.device)
w2 = lyco_helpers.make_weight_cp(t2, w2a, w2b)
output_shape = [w1.size(0) * w2.size(0), w1.size(1) * w2.size(1)]

6
extensions-builtin/Lora/network_lora.py
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@@ -61,13 +61,13 @@ class NetworkModuleLora(network.NetworkModule):
return module
def calc_updown(self, orig_weight):
up = self.up_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
down = self.down_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
up = self.up_model.weight.to(orig_weight.device)
down = self.down_model.weight.to(orig_weight.device)
output_shape = [up.size(0), down.size(1)]
if self.mid_model is not None:
# cp-decomposition
mid = self.mid_model.weight.to(orig_weight.device, dtype=orig_weight.dtype)
mid = self.mid_model.weight.to(orig_weight.device)
updown = lyco_helpers.rebuild_cp_decomposition(up, down, mid)
output_shape += mid.shape[2:]
else:

4
extensions-builtin/Lora/network_norm.py
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@@ -18,10 +18,10 @@ class NetworkModuleNorm(network.NetworkModule):
def calc_updown(self, orig_weight):
output_shape = self.w_norm.shape
updown = self.w_norm.to(orig_weight.device, dtype=orig_weight.dtype)
updown = self.w_norm.to(orig_weight.device)
if self.b_norm is not None:
ex_bias = self.b_norm.to(orig_weight.device, dtype=orig_weight.dtype)
ex_bias = self.b_norm.to(orig_weight.device)
else:
ex_bias = None

6
extensions-builtin/Lora/network_oft.py
View File

@@ -56,7 +56,7 @@ class NetworkModuleOFT(network.NetworkModule):
self.block_size, self.num_blocks = factorization(self.out_dim, self.dim)
def calc_updown(self, orig_weight):
oft_blocks = self.oft_blocks.to(orig_weight.device, dtype=orig_weight.dtype)
oft_blocks = self.oft_blocks.to(orig_weight.device)
eye = torch.eye(self.block_size, device=self.oft_blocks.device)
if self.is_kohya:
@@ -66,7 +66,7 @@ class NetworkModuleOFT(network.NetworkModule):
block_Q = block_Q * ((new_norm_Q + 1e-8) / (norm_Q + 1e-8))
oft_blocks = torch.matmul(eye + block_Q, (eye - block_Q).float().inverse())
R = oft_blocks.to(orig_weight.device, dtype=orig_weight.dtype)
R = oft_blocks.to(orig_weight.device)
# This errors out for MultiheadAttention, might need to be handled up-stream
merged_weight = rearrange(orig_weight, '(k n) ... -> k n ...', k=self.num_blocks, n=self.block_size)
@@ -77,6 +77,6 @@ class NetworkModuleOFT(network.NetworkModule):
)
merged_weight = rearrange(merged_weight, 'k m ... -> (k m) ...')
updown = merged_weight.to(orig_weight.device, dtype=orig_weight.dtype) - orig_weight
updown = merged_weight.to(orig_weight.device) - orig_weight.to(merged_weight.dtype)
output_shape = orig_weight.shape
return self.finalize_updown(updown, orig_weight, output_shape)

38
extensions-builtin/Lora/networks.py
View File

@@ -1,3 +1,4 @@
import gradio as gr
import logging
import os
import re
@@ -314,7 +315,12 @@ def load_networks(names, te_multipliers=None, unet_multipliers=None, dyn_dims=No
emb_db.skipped_embeddings[name] = embedding
if failed_to_load_networks:
sd_hijack.model_hijack.comments.append("Networks not found: " + ", ".join(failed_to_load_networks))
lora_not_found_message = f'Lora not found: {", ".join(failed_to_load_networks)}'
sd_hijack.model_hijack.comments.append(lora_not_found_message)
if shared.opts.lora_not_found_warning_console:
print(f'\n{lora_not_found_message}\n')
if shared.opts.lora_not_found_gradio_warning:
gr.Warning(lora_not_found_message)
purge_networks_from_memory()
@@ -389,18 +395,26 @@ def network_apply_weights(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn
if module is not None and hasattr(self, 'weight'):
try:
with torch.no_grad():
updown, ex_bias = module.calc_updown(self.weight)
if getattr(self, 'fp16_weight', None) is None:
weight = self.weight
bias = self.bias
else:
weight = self.fp16_weight.clone().to(self.weight.device)
bias = getattr(self, 'fp16_bias', None)
if bias is not None:
bias = bias.clone().to(self.bias.device)
updown, ex_bias = module.calc_updown(weight)
if len(self.weight.shape) == 4 and self.weight.shape[1] == 9:
if len(weight.shape) == 4 and weight.shape[1] == 9:
# inpainting model. zero pad updown to make channel[1] 4 to 9
updown = torch.nn.functional.pad(updown, (0, 0, 0, 0, 0, 5))
self.weight += updown
self.weight.copy_((weight.to(dtype=updown.dtype) + updown).to(dtype=self.weight.dtype))
if ex_bias is not None and hasattr(self, 'bias'):
if self.bias is None:
self.bias = torch.nn.Parameter(ex_bias)
self.bias = torch.nn.Parameter(ex_bias).to(self.weight.dtype)
else:
self.bias += ex_bias
self.bias.copy_((bias + ex_bias).to(dtype=self.bias.dtype))
except RuntimeError as e:
logging.debug(f"Network {net.name} layer {network_layer_name}: {e}")
extra_network_lora.errors[net.name] = extra_network_lora.errors.get(net.name, 0) + 1
@@ -444,23 +458,23 @@ def network_apply_weights(self: Union[torch.nn.Conv2d, torch.nn.Linear, torch.nn
self.network_current_names = wanted_names
def network_forward(module, input, original_forward):
def network_forward(org_module, input, original_forward):
"""
Old way of applying Lora by executing operations during layer's forward.
Stacking many loras this way results in big performance degradation.
"""
if len(loaded_networks) == 0:
return original_forward(module, input)
return original_forward(org_module, input)
input = devices.cond_cast_unet(input)
network_restore_weights_from_backup(module)
network_reset_cached_weight(module)
network_restore_weights_from_backup(org_module)
network_reset_cached_weight(org_module)
y = original_forward(module, input)
y = original_forward(org_module, input)
network_layer_name = getattr(module, 'network_layer_name', None)
network_layer_name = getattr(org_module, 'network_layer_name', None)
for lora in loaded_networks:
module = lora.modules.get(network_layer_name, None)
if module is None:

2
extensions-builtin/Lora/scripts/lora_script.py
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@@ -39,6 +39,8 @@ shared.options_templates.update(shared.options_section(('extra_networks', "Extra
"lora_show_all": shared.OptionInfo(False, "Always show all networks on the Lora page").info("otherwise, those detected as for incompatible version of Stable Diffusion will be hidden"),
"lora_hide_unknown_for_versions": shared.OptionInfo([], "Hide networks of unknown versions for model versions", gr.CheckboxGroup, {"choices": ["SD1", "SD2", "SDXL"]}),
"lora_in_memory_limit": shared.OptionInfo(0, "Number of Lora networks to keep cached in memory", gr.Number, {"precision": 0}),
"lora_not_found_warning_console": shared.OptionInfo(False, "Lora not found warning in console"),
"lora_not_found_gradio_warning": shared.OptionInfo(False, "Lora not found warning popup in webui"),
}))

9
extensions-builtin/Lora/ui_edit_user_metadata.py
View File

@@ -54,12 +54,13 @@ class LoraUserMetadataEditor(ui_extra_networks_user_metadata.UserMetadataEditor)
self.slider_preferred_weight = None
self.edit_notes = None
def save_lora_user_metadata(self, name, desc, sd_version, activation_text, preferred_weight, notes):
def save_lora_user_metadata(self, name, desc, sd_version, activation_text, preferred_weight, negative_text, notes):
user_metadata = self.get_user_metadata(name)
user_metadata["description"] = desc
user_metadata["sd version"] = sd_version
user_metadata["activation text"] = activation_text
user_metadata["preferred weight"] = preferred_weight
user_metadata["negative text"] = negative_text
user_metadata["notes"] = notes
self.write_user_metadata(name, user_metadata)
@@ -127,6 +128,7 @@ class LoraUserMetadataEditor(ui_extra_networks_user_metadata.UserMetadataEditor)
gr.HighlightedText.update(value=gradio_tags, visible=True if tags else False),
user_metadata.get('activation text', ''),
float(user_metadata.get('preferred weight', 0.0)),
user_metadata.get('negative text', ''),
gr.update(visible=True if tags else False),
gr.update(value=self.generate_random_prompt_from_tags(tags), visible=True if tags else False),
]
@@ -162,7 +164,7 @@ class LoraUserMetadataEditor(ui_extra_networks_user_metadata.UserMetadataEditor)
self.taginfo = gr.HighlightedText(label="Training dataset tags")
self.edit_activation_text = gr.Text(label='Activation text', info="Will be added to prompt along with Lora")
self.slider_preferred_weight = gr.Slider(label='Preferred weight', info="Set to 0 to disable", minimum=0.0, maximum=2.0, step=0.01)
self.edit_negative_text = gr.Text(label='Negative prompt', info="Will be added to negative prompts")
with gr.Row() as row_random_prompt:
with gr.Column(scale=8):
random_prompt = gr.Textbox(label='Random prompt', lines=4, max_lines=4, interactive=False)
@@ -198,6 +200,7 @@ class LoraUserMetadataEditor(ui_extra_networks_user_metadata.UserMetadataEditor)
self.taginfo,
self.edit_activation_text,
self.slider_preferred_weight,
self.edit_negative_text,
row_random_prompt,
random_prompt,
]
@@ -211,7 +214,9 @@ class LoraUserMetadataEditor(ui_extra_networks_user_metadata.UserMetadataEditor)
self.select_sd_version,
self.edit_activation_text,
self.slider_preferred_weight,
self.edit_negative_text,
self.edit_notes,
]
self.setup_save_handler(self.button_save, self.save_lora_user_metadata, edited_components)

5
extensions-builtin/Lora/ui_extra_networks_lora.py
View File

@@ -48,6 +48,11 @@ class ExtraNetworksPageLora(ui_extra_networks.ExtraNetworksPage):
if activation_text:
item["prompt"] += " + " + quote_js(" " + activation_text)
negative_prompt = item["user_metadata"].get("negative text")
item["negative_prompt"] = quote_js("")
if negative_prompt:
item["negative_prompt"] = quote_js('(' + negative_prompt + ':1)')
sd_version = item["user_metadata"].get("sd version")
if sd_version in network.SdVersion.__members__:
item["sd_version"] = sd_version

94
extensions-builtin/ScuNET/scripts/scunet_model.py
View File

@@ -1,16 +1,9 @@
import sys
import PIL.Image
import numpy as np
import torch
from tqdm import tqdm
import modules.upscaler
from modules import devices, modelloader, script_callbacks, errors
from scunet_model_arch import SCUNet
from modules.modelloader import load_file_from_url
from modules.shared import opts
from modules import devices, errors, modelloader, script_callbacks, shared, upscaler_utils
class UpscalerScuNET(modules.upscaler.Upscaler):
@@ -42,100 +35,37 @@ class UpscalerScuNET(modules.upscaler.Upscaler):
scalers.append(scaler_data2)
self.scalers = scalers
@staticmethod
@torch.no_grad()
def tiled_inference(img, model):
# test the image tile by tile
h, w = img.shape[2:]
tile = opts.SCUNET_tile
tile_overlap = opts.SCUNET_tile_overlap
if tile == 0:
return model(img)
device = devices.get_device_for('scunet')
assert tile % 8 == 0, "tile size should be a multiple of window_size"
sf = 1
stride = tile - tile_overlap
h_idx_list = list(range(0, h - tile, stride)) + [h - tile]
w_idx_list = list(range(0, w - tile, stride)) + [w - tile]
E = torch.zeros(1, 3, h * sf, w * sf, dtype=img.dtype, device=device)
W = torch.zeros_like(E, dtype=devices.dtype, device=device)
with tqdm(total=len(h_idx_list) * len(w_idx_list), desc="ScuNET tiles") as pbar:
for h_idx in h_idx_list:
for w_idx in w_idx_list:
in_patch = img[..., h_idx: h_idx + tile, w_idx: w_idx + tile]
out_patch = model(in_patch)
out_patch_mask = torch.ones_like(out_patch)
E[
..., h_idx * sf: (h_idx + tile) * sf, w_idx * sf: (w_idx + tile) * sf
].add_(out_patch)
W[
..., h_idx * sf: (h_idx + tile) * sf, w_idx * sf: (w_idx + tile) * sf
].add_(out_patch_mask)
pbar.update(1)
output = E.div_(W)
return output
def do_upscale(self, img: PIL.Image.Image, selected_file):
devices.torch_gc()
try:
model = self.load_model(selected_file)
except Exception as e:
print(f"ScuNET: Unable to load model from {selected_file}: {e}", file=sys.stderr)
return img
device = devices.get_device_for('scunet')
tile = opts.SCUNET_tile
h, w = img.height, img.width
np_img = np.array(img)
np_img = np_img[:, :, ::-1] # RGB to BGR
np_img = np_img.transpose((2, 0, 1)) / 255 # HWC to CHW
torch_img = torch.from_numpy(np_img).float().unsqueeze(0).to(device) # type: ignore
if tile > h or tile > w:
_img = torch.zeros(1, 3, max(h, tile), max(w, tile), dtype=torch_img.dtype, device=torch_img.device)
_img[:, :, :h, :w] = torch_img # pad image
torch_img = _img
torch_output = self.tiled_inference(torch_img, model).squeeze(0)
torch_output = torch_output[:, :h * 1, :w * 1] # remove padding, if any
np_output: np.ndarray = torch_output.float().cpu().clamp_(0, 1).numpy()
del torch_img, torch_output
img = upscaler_utils.upscale_2(
img,
model,
tile_size=shared.opts.SCUNET_tile,
tile_overlap=shared.opts.SCUNET_tile_overlap,
scale=1, # ScuNET is a denoising model, not an upscaler
desc='ScuNET',
)
devices.torch_gc()
output = np_output.transpose((1, 2, 0)) # CHW to HWC
output = output[:, :, ::-1] # BGR to RGB
return PIL.Image.fromarray((output * 255).astype(np.uint8))
return img
def load_model(self, path: str):
device = devices.get_device_for('scunet')
if path.startswith("http"):
# TODO: this doesn't use `path` at all?
filename = load_file_from_url(self.model_url, model_dir=self.model_download_path, file_name=f"{self.name}.pth")
filename = modelloader.load_file_from_url(self.model_url, model_dir=self.model_download_path, file_name=f"{self.name}.pth")
else:
filename = path
model = SCUNet(in_nc=3, config=[4, 4, 4, 4, 4, 4, 4], dim=64)
model.load_state_dict(torch.load(filename), strict=True)
model.eval()
for _, v in model.named_parameters():
v.requires_grad = False
model = model.to(device)
return model
return modelloader.load_spandrel_model(filename, device=device, expected_architecture='SCUNet')
def on_ui_settings():
import gradio as gr
from modules import shared
shared.opts.add_option("SCUNET_tile", shared.OptionInfo(256, "Tile size for SCUNET upscalers.", gr.Slider, {"minimum": 0, "maximum": 512, "step": 16}, section=('upscaling', "Upscaling")).info("0 = no tiling"))
shared.opts.add_option("SCUNET_tile_overlap", shared.OptionInfo(8, "Tile overlap for SCUNET upscalers.", gr.Slider, {"minimum": 0, "maximum": 64, "step": 1}, section=('upscaling', "Upscaling")).info("Low values = visible seam"))

268
extensions-builtin/ScuNET/scunet_model_arch.py
View File

@@ -1,268 +0,0 @@
# -*- coding: utf-8 -*-
import numpy as np
import torch
import torch.nn as nn
from einops import rearrange
from einops.layers.torch import Rearrange
from timm.models.layers import trunc_normal_, DropPath
class WMSA(nn.Module):
""" Self-attention module in Swin Transformer
"""
def __init__(self, input_dim, output_dim, head_dim, window_size, type):
super(WMSA, self).__init__()
self.input_dim = input_dim
self.output_dim = output_dim
self.head_dim = head_dim
self.scale = self.head_dim ** -0.5
self.n_heads = input_dim // head_dim
self.window_size = window_size
self.type = type
self.embedding_layer = nn.Linear(self.input_dim, 3 * self.input_dim, bias=True)
self.relative_position_params = nn.Parameter(
torch.zeros((2 * window_size - 1) * (2 * window_size - 1), self.n_heads))
self.linear = nn.Linear(self.input_dim, self.output_dim)
trunc_normal_(self.relative_position_params, std=.02)
self.relative_position_params = torch.nn.Parameter(
self.relative_position_params.view(2 * window_size - 1, 2 * window_size - 1, self.n_heads).transpose(1,
2).transpose(
0, 1))
def generate_mask(self, h, w, p, shift):
""" generating the mask of SW-MSA
Args:
shift: shift parameters in CyclicShift.
Returns:
attn_mask: should be (1 1 w p p),
"""
# supporting square.
attn_mask = torch.zeros(h, w, p, p, p, p, dtype=torch.bool, device=self.relative_position_params.device)
if self.type == 'W':
return attn_mask
s = p - shift
attn_mask[-1, :, :s, :, s:, :] = True
attn_mask[-1, :, s:, :, :s, :] = True
attn_mask[:, -1, :, :s, :, s:] = True
attn_mask[:, -1, :, s:, :, :s] = True
attn_mask = rearrange(attn_mask, 'w1 w2 p1 p2 p3 p4 -> 1 1 (w1 w2) (p1 p2) (p3 p4)')
return attn_mask
def forward(self, x):
""" Forward pass of Window Multi-head Self-attention module.
Args:
x: input tensor with shape of [b h w c];
attn_mask: attention mask, fill -inf where the value is True;
Returns:
output: tensor shape [b h w c]
"""
if self.type != 'W':
x = torch.roll(x, shifts=(-(self.window_size // 2), -(self.window_size // 2)), dims=(1, 2))
x = rearrange(x, 'b (w1 p1) (w2 p2) c -> b w1 w2 p1 p2 c', p1=self.window_size, p2=self.window_size)
h_windows = x.size(1)
w_windows = x.size(2)
# square validation
# assert h_windows == w_windows
x = rearrange(x, 'b w1 w2 p1 p2 c -> b (w1 w2) (p1 p2) c', p1=self.window_size, p2=self.window_size)
qkv = self.embedding_layer(x)
q, k, v = rearrange(qkv, 'b nw np (threeh c) -> threeh b nw np c', c=self.head_dim).chunk(3, dim=0)
sim = torch.einsum('hbwpc,hbwqc->hbwpq', q, k) * self.scale
# Adding learnable relative embedding
sim = sim + rearrange(self.relative_embedding(), 'h p q -> h 1 1 p q')
# Using Attn Mask to distinguish different subwindows.
if self.type != 'W':
attn_mask = self.generate_mask(h_windows, w_windows, self.window_size, shift=self.window_size // 2)
sim = sim.masked_fill_(attn_mask, float("-inf"))
probs = nn.functional.softmax(sim, dim=-1)
output = torch.einsum('hbwij,hbwjc->hbwic', probs, v)
output = rearrange(output, 'h b w p c -> b w p (h c)')
output = self.linear(output)
output = rearrange(output, 'b (w1 w2) (p1 p2) c -> b (w1 p1) (w2 p2) c', w1=h_windows, p1=self.window_size)
if self.type != 'W':
output = torch.roll(output, shifts=(self.window_size // 2, self.window_size // 2), dims=(1, 2))
return output
def relative_embedding(self):
cord = torch.tensor(np.array([[i, j] for i in range(self.window_size) for j in range(self.window_size)]))
relation = cord[:, None, :] - cord[None, :, :] + self.window_size - 1
# negative is allowed
return self.relative_position_params[:, relation[:, :, 0].long(), relation[:, :, 1].long()]
class Block(nn.Module):
def __init__(self, input_dim, output_dim, head_dim, window_size, drop_path, type='W', input_resolution=None):
""" SwinTransformer Block
"""
super(Block, self).__init__()
self.input_dim = input_dim
self.output_dim = output_dim
assert type in ['W', 'SW']
self.type = type
if input_resolution <= window_size:
self.type = 'W'
self.ln1 = nn.LayerNorm(input_dim)
self.msa = WMSA(input_dim, input_dim, head_dim, window_size, self.type)
self.drop_path = DropPath(drop_path) if drop_path > 0. else nn.Identity()
self.ln2 = nn.LayerNorm(input_dim)
self.mlp = nn.Sequential(
nn.Linear(input_dim, 4 * input_dim),
nn.GELU(),
nn.Linear(4 * input_dim, output_dim),
)
def forward(self, x):
x = x + self.drop_path(self.msa(self.ln1(x)))
x = x + self.drop_path(self.mlp(self.ln2(x)))
return x
class ConvTransBlock(nn.Module):
def __init__(self, conv_dim, trans_dim, head_dim, window_size, drop_path, type='W', input_resolution=None):
""" SwinTransformer and Conv Block
"""
super(ConvTransBlock, self).__init__()
self.conv_dim = conv_dim
self.trans_dim = trans_dim
self.head_dim = head_dim
self.window_size = window_size
self.drop_path = drop_path
self.type = type
self.input_resolution = input_resolution
assert self.type in ['W', 'SW']
if self.input_resolution <= self.window_size:
self.type = 'W'
self.trans_block = Block(self.trans_dim, self.trans_dim, self.head_dim, self.window_size, self.drop_path,
self.type, self.input_resolution)
self.conv1_1 = nn.Conv2d(self.conv_dim + self.trans_dim, self.conv_dim + self.trans_dim, 1, 1, 0, bias=True)
self.conv1_2 = nn.Conv2d(self.conv_dim + self.trans_dim, self.conv_dim + self.trans_dim, 1, 1, 0, bias=True)
self.conv_block = nn.Sequential(
nn.Conv2d(self.conv_dim, self.conv_dim, 3, 1, 1, bias=False),
nn.ReLU(True),
nn.Conv2d(self.conv_dim, self.conv_dim, 3, 1, 1, bias=False)
)
def forward(self, x):
conv_x, trans_x = torch.split(self.conv1_1(x), (self.conv_dim, self.trans_dim), dim=1)
conv_x = self.conv_block(conv_x) + conv_x
trans_x = Rearrange('b c h w -> b h w c')(trans_x)
trans_x = self.trans_block(trans_x)
trans_x = Rearrange('b h w c -> b c h w')(trans_x)
res = self.conv1_2(torch.cat((conv_x, trans_x), dim=1))
x = x + res
return x
class SCUNet(nn.Module):
# def __init__(self, in_nc=3, config=[2, 2, 2, 2, 2, 2, 2], dim=64, drop_path_rate=0.0, input_resolution=256):
def __init__(self, in_nc=3, config=None, dim=64, drop_path_rate=0.0, input_resolution=256):
super(SCUNet, self).__init__()
if config is None:
config = [2, 2, 2, 2, 2, 2, 2]
self.config = config
self.dim = dim
self.head_dim = 32
self.window_size = 8
# drop path rate for each layer
dpr = [x.item() for x in torch.linspace(0, drop_path_rate, sum(config))]
self.m_head = [nn.Conv2d(in_nc, dim, 3, 1, 1, bias=False)]
begin = 0
self.m_down1 = [ConvTransBlock(dim // 2, dim // 2, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution)
for i in range(config[0])] + \
[nn.Conv2d(dim, 2 * dim, 2, 2, 0, bias=False)]
begin += config[0]
self.m_down2 = [ConvTransBlock(dim, dim, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution // 2)
for i in range(config[1])] + \
[nn.Conv2d(2 * dim, 4 * dim, 2, 2, 0, bias=False)]
begin += config[1]
self.m_down3 = [ConvTransBlock(2 * dim, 2 * dim, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution // 4)
for i in range(config[2])] + \
[nn.Conv2d(4 * dim, 8 * dim, 2, 2, 0, bias=False)]
begin += config[2]
self.m_body = [ConvTransBlock(4 * dim, 4 * dim, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution // 8)
for i in range(config[3])]
begin += config[3]
self.m_up3 = [nn.ConvTranspose2d(8 * dim, 4 * dim, 2, 2, 0, bias=False), ] + \
[ConvTransBlock(2 * dim, 2 * dim, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution // 4)
for i in range(config[4])]
begin += config[4]
self.m_up2 = [nn.ConvTranspose2d(4 * dim, 2 * dim, 2, 2, 0, bias=False), ] + \
[ConvTransBlock(dim, dim, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution // 2)
for i in range(config[5])]
begin += config[5]
self.m_up1 = [nn.ConvTranspose2d(2 * dim, dim, 2, 2, 0, bias=False), ] + \
[ConvTransBlock(dim // 2, dim // 2, self.head_dim, self.window_size, dpr[i + begin],
'W' if not i % 2 else 'SW', input_resolution)
for i in range(config[6])]
self.m_tail = [nn.Conv2d(dim, in_nc, 3, 1, 1, bias=False)]
self.m_head = nn.Sequential(*self.m_head)
self.m_down1 = nn.Sequential(*self.m_down1)
self.m_down2 = nn.Sequential(*self.m_down2)
self.m_down3 = nn.Sequential(*self.m_down3)
self.m_body = nn.Sequential(*self.m_body)
self.m_up3 = nn.Sequential(*self.m_up3)
self.m_up2 = nn.Sequential(*self.m_up2)
self.m_up1 = nn.Sequential(*self.m_up1)
self.m_tail = nn.Sequential(*self.m_tail)
# self.apply(self._init_weights)
def forward(self, x0):
h, w = x0.size()[-2:]
paddingBottom = int(np.ceil(h / 64) * 64 - h)
paddingRight = int(np.ceil(w / 64) * 64 - w)
x0 = nn.ReplicationPad2d((0, paddingRight, 0, paddingBottom))(x0)
x1 = self.m_head(x0)
x2 = self.m_down1(x1)
x3 = self.m_down2(x2)
x4 = self.m_down3(x3)
x = self.m_body(x4)
x = self.m_up3(x + x4)
x = self.m_up2(x + x3)
x = self.m_up1(x + x2)
x = self.m_tail(x + x1)
x = x[..., :h, :w]
return x
def _init_weights(self, m):
if isinstance(m, nn.Linear):
trunc_normal_(m.weight, std=.02)
if m.bias is not None:
nn.init.constant_(m.bias, 0)
elif isinstance(m, nn.LayerNorm):
nn.init.constant_(m.bias, 0)
nn.init.constant_(m.weight, 1.0)

161
extensions-builtin/SwinIR/scripts/swinir_model.py
View File

@@ -1,20 +1,15 @@
import logging
import sys
import platform
import numpy as np
import torch
from PIL import Image
from tqdm import tqdm
from modules import modelloader, devices, script_callbacks, shared
from modules.shared import opts, state
from swinir_model_arch import SwinIR
from swinir_model_arch_v2 import Swin2SR
from modules import devices, modelloader, script_callbacks, shared, upscaler_utils
from modules.upscaler import Upscaler, UpscalerData
SWINIR_MODEL_URL = "https://github.com/JingyunLiang/SwinIR/releases/download/v0.0/003_realSR_BSRGAN_DFOWMFC_s64w8_SwinIR-L_x4_GAN.pth"
device_swinir = devices.get_device_for('swinir')
logger = logging.getLogger(__name__)
class UpscalerSwinIR(Upscaler):
@@ -37,26 +32,28 @@ class UpscalerSwinIR(Upscaler):
scalers.append(model_data)
self.scalers = scalers
def do_upscale(self, img, model_file):
use_compile = hasattr(opts, 'SWIN_torch_compile') and opts.SWIN_torch_compile \
and int(torch.__version__.split('.')[0]) >= 2 and platform.system() != "Windows"
current_config = (model_file, opts.SWIN_tile)
def do_upscale(self, img: Image.Image, model_file: str) -> Image.Image:
current_config = (model_file, shared.opts.SWIN_tile)
if use_compile and self._cached_model_config == current_config:
if self._cached_model_config == current_config:
model = self._cached_model
else:
self._cached_model = None
try:
model = self.load_model(model_file)
except Exception as e:
print(f"Failed loading SwinIR model {model_file}: {e}", file=sys.stderr)
return img
model = model.to(device_swinir, dtype=devices.dtype)
if use_compile:
model = torch.compile(model)
self._cached_model = model
self._cached_model_config = current_config
img = upscale(img, model)
self._cached_model = model
self._cached_model_config = current_config
img = upscaler_utils.upscale_2(
img,
model,
tile_size=shared.opts.SWIN_tile,
tile_overlap=shared.opts.SWIN_tile_overlap,
scale=model.scale,
desc="SwinIR",
)
devices.torch_gc()
return img
@@ -69,115 +66,22 @@ class UpscalerSwinIR(Upscaler):
)
else:
filename = path
if filename.endswith(".v2.pth"):
model = Swin2SR(
upscale=scale,
in_chans=3,
img_size=64,
window_size=8,
img_range=1.0,
depths=[6, 6, 6, 6, 6, 6],
embed_dim=180,
num_heads=[6, 6, 6, 6, 6, 6],
mlp_ratio=2,
upsampler="nearest+conv",
resi_connection="1conv",
)
params = None
else:
model = SwinIR(
upscale=scale,
in_chans=3,
img_size=64,
window_size=8,
img_range=1.0,
depths=[6, 6, 6, 6, 6, 6, 6, 6, 6],
embed_dim=240,
num_heads=[8, 8, 8, 8, 8, 8, 8, 8, 8],
mlp_ratio=2,
upsampler="nearest+conv",
resi_connection="3conv",
)
params = "params_ema"
pretrained_model = torch.load(filename)
if params is not None:
model.load_state_dict(pretrained_model[params], strict=True)
else:
model.load_state_dict(pretrained_model, strict=True)
return model
model_descriptor = modelloader.load_spandrel_model(
filename,
device=self._get_device(),
prefer_half=(devices.dtype == torch.float16),
expected_architecture="SwinIR",
)
if getattr(shared.opts, 'SWIN_torch_compile', False):
try:
model_descriptor.model.compile()
except Exception:
logger.warning("Failed to compile SwinIR model, fallback to JIT", exc_info=True)
return model_descriptor
def upscale(
img,
model,
tile=None,
tile_overlap=None,
window_size=8,
scale=4,
):
tile = tile or opts.SWIN_tile
tile_overlap = tile_overlap or opts.SWIN_tile_overlap
img = np.array(img)
img = img[:, :, ::-1]
img = np.moveaxis(img, 2, 0) / 255
img = torch.from_numpy(img).float()
img = img.unsqueeze(0).to(device_swinir, dtype=devices.dtype)
with torch.no_grad(), devices.autocast():
_, _, h_old, w_old = img.size()
h_pad = (h_old // window_size + 1) * window_size - h_old
w_pad = (w_old // window_size + 1) * window_size - w_old
img = torch.cat([img, torch.flip(img, [2])], 2)[:, :, : h_old + h_pad, :]
img = torch.cat([img, torch.flip(img, [3])], 3)[:, :, :, : w_old + w_pad]
output = inference(img, model, tile, tile_overlap, window_size, scale)
output = output[..., : h_old * scale, : w_old * scale]
output = output.data.squeeze().float().cpu().clamp_(0, 1).numpy()
if output.ndim == 3:
output = np.transpose(
output[[2, 1, 0], :, :], (1, 2, 0)
) # CHW-RGB to HCW-BGR
output = (output * 255.0).round().astype(np.uint8) # float32 to uint8
return Image.fromarray(output, "RGB")
def inference(img, model, tile, tile_overlap, window_size, scale):
# test the image tile by tile
b, c, h, w = img.size()
tile = min(tile, h, w)
assert tile % window_size == 0, "tile size should be a multiple of window_size"
sf = scale
stride = tile - tile_overlap
h_idx_list = list(range(0, h - tile, stride)) + [h - tile]
w_idx_list = list(range(0, w - tile, stride)) + [w - tile]
E = torch.zeros(b, c, h * sf, w * sf, dtype=devices.dtype, device=device_swinir).type_as(img)
W = torch.zeros_like(E, dtype=devices.dtype, device=device_swinir)
with tqdm(total=len(h_idx_list) * len(w_idx_list), desc="SwinIR tiles") as pbar:
for h_idx in h_idx_list:
if state.interrupted or state.skipped:
break
for w_idx in w_idx_list:
if state.interrupted or state.skipped:
break
in_patch = img[..., h_idx: h_idx + tile, w_idx: w_idx + tile]
out_patch = model(in_patch)
out_patch_mask = torch.ones_like(out_patch)
E[
..., h_idx * sf: (h_idx + tile) * sf, w_idx * sf: (w_idx + tile) * sf
].add_(out_patch)
W[
..., h_idx * sf: (h_idx + tile) * sf, w_idx * sf: (w_idx + tile) * sf
].add_(out_patch_mask)
pbar.update(1)
output = E.div_(W)
return output
def _get_device(self):
return devices.get_device_for('swinir')
def on_ui_settings():
@@ -185,8 +89,7 @@ def on_ui_settings():
shared.opts.add_option("SWIN_tile", shared.OptionInfo(192, "Tile size for all SwinIR.", gr.Slider, {"minimum": 16, "maximum": 512, "step": 16}, section=('upscaling', "Upscaling")))
shared.opts.add_option("SWIN_tile_overlap", shared.OptionInfo(8, "Tile overlap, in pixels for SwinIR. Low values = visible seam.", gr.Slider, {"minimum": 0, "maximum": 48, "step": 1}, section=('upscaling', "Upscaling")))
if int(torch.__version__.split('.')[0]) >= 2 and platform.system() != "Windows": # torch.compile() require pytorch 2.0 or above, and not on Windows
shared.opts.add_option("SWIN_torch_compile", shared.OptionInfo(False, "Use torch.compile to accelerate SwinIR.", gr.Checkbox, {"interactive": True}, section=('upscaling', "Upscaling")).info("Takes longer on first run"))
shared.opts.add_option("SWIN_torch_compile", shared.OptionInfo(False, "Use torch.compile to accelerate SwinIR.", gr.Checkbox, {"interactive": True}, section=('upscaling', "Upscaling")).info("Takes longer on first run"))
script_callbacks.on_ui_settings(on_ui_settings)

867
extensions-builtin/SwinIR/swinir_model_arch.py
View File

@@ -1,867 +0,0 @@
# -----------------------------------------------------------------------------------
# SwinIR: Image Restoration Using Swin Transformer, https://arxiv.org/abs/2108.10257
# Originally Written by Ze Liu, Modified by Jingyun Liang.
# -----------------------------------------------------------------------------------
import math
import torch
import torch.nn as nn
import torch.nn.functional as F
import torch.utils.checkpoint as checkpoint
from timm.models.layers import DropPath, to_2tuple, trunc_normal_
class Mlp(nn.Module):
def __init__(self, in_features, hidden_features=None, out_features=None, act_layer=nn.GELU, drop=0.):
super().__init__()
out_features = out_features or in_features
hidden_features = hidden_features or in_features
self.fc1 = nn.Linear(in_features, hidden_features)
self.act = act_layer()
self.fc2 = nn.Linear(hidden_features, out_features)
self.drop = nn.Dropout(drop)
def forward(self, x):
x = self.fc1(x)
x = self.act(x)
x = self.drop(x)
x = self.fc2(x)
x = self.drop(x)
return x
def window_partition(x, window_size):
"""
Args:
x: (B, H, W, C)
window_size (int): window size
Returns:
windows: (num_windows*B, window_size, window_size, C)
"""
B, H, W, C = x.shape
x = x.view(B, H // window_size, window_size, W // window_size, window_size, C)
windows = x.permute(0, 1, 3, 2, 4, 5).contiguous().view(-1, window_size, window_size, C)
return windows
def window_reverse(windows, window_size, H, W):
"""
Args:
windows: (num_windows*B, window_size, window_size, C)
window_size (int): Window size
H (int): Height of image
W (int): Width of image
Returns:
x: (B, H, W, C)
"""
B = int(windows.shape[0] / (H * W / window_size / window_size))
x = windows.view(B, H // window_size, W // window_size, window_size, window_size, -1)
x = x.permute(0, 1, 3, 2, 4, 5).contiguous().view(B, H, W, -1)
return x
class WindowAttention(nn.Module):
r""" Window based multi-head self attention (W-MSA) module with relative position bias.
It supports both of shifted and non-shifted window.
Args:
dim (int): Number of input channels.
window_size (tuple[int]): The height and width of the window.
num_heads (int): Number of attention heads.
qkv_bias (bool, optional): If True, add a learnable bias to query, key, value. Default: True
qk_scale (float | None, optional): Override default qk scale of head_dim ** -0.5 if set
attn_drop (float, optional): Dropout ratio of attention weight. Default: 0.0
proj_drop (float, optional): Dropout ratio of output. Default: 0.0
"""
def __init__(self, dim, window_size, num_heads, qkv_bias=True, qk_scale=None, attn_drop=0., proj_drop=0.):
super().__init__()
self.dim = dim
self.window_size = window_size # Wh, Ww
self.num_heads = num_heads
head_dim = dim // num_heads
self.scale = qk_scale or head_dim ** -0.5
# define a parameter table of relative position bias
self.relative_position_bias_table = nn.Parameter(
torch.zeros((2 * window_size[0] - 1) * (2 * window_size[1] - 1), num_heads)) # 2*Wh-1 * 2*Ww-1, nH
# get pair-wise relative position index for each token inside the window
coords_h = torch.arange(self.window_size[0])
coords_w = torch.arange(self.window_size[1])
coords = torch.stack(torch.meshgrid([coords_h, coords_w])) # 2, Wh, Ww
coords_flatten = torch.flatten(coords, 1) # 2, Wh*Ww
relative_coords = coords_flatten[:, :, None] - coords_flatten[:, None, :] # 2, Wh*Ww, Wh*Ww
relative_coords = relative_coords.permute(1, 2, 0).contiguous() # Wh*Ww, Wh*Ww, 2
relative_coords[:, :, 0] += self.window_size[0] - 1 # shift to start from 0
relative_coords[:, :, 1] += self.window_size[1] - 1
relative_coords[:, :, 0] *= 2 * self.window_size[1] - 1
relative_position_index = relative_coords.sum(-1) # Wh*Ww, Wh*Ww
self.register_buffer("relative_position_index", relative_position_index)
self.qkv = nn.Linear(dim, dim * 3, bias=qkv_bias)
self.attn_drop = nn.Dropout(attn_drop)
self.proj = nn.Linear(dim, dim)
self.proj_drop = nn.Dropout(proj_drop)
trunc_normal_(self.relative_position_bias_table, std=.02)
self.softmax = nn.Softmax(dim=-1)
def forward(self, x, mask=None):
"""
Args:
x: input features with shape of (num_windows*B, N, C)
mask: (0/-inf) mask with shape of (num_windows, Wh*Ww, Wh*Ww) or None
"""
B_, N, C = x.shape
qkv = self.qkv(x).reshape(B_, N, 3, self.num_heads, C // self.num_heads).permute(2, 0, 3, 1, 4)
q, k, v = qkv[0], qkv[1], qkv[2] # make torchscript happy (cannot use tensor as tuple)
q = q * self.scale
attn = (q @ k.transpose(-2, -1))
relative_position_bias = self.relative_position_bias_table[self.relative_position_index.view(-1)].view(
self.window_size[0] * self.window_size[1], self.window_size[0] * self.window_size[1], -1) # Wh*Ww,Wh*Ww,nH
relative_position_bias = relative_position_bias.permute(2, 0, 1).contiguous() # nH, Wh*Ww, Wh*Ww
attn = attn + relative_position_bias.unsqueeze(0)
if mask is not None:
nW = mask.shape[0]
attn = attn.view(B_ // nW, nW, self.num_heads, N, N) + mask.unsqueeze(1).unsqueeze(0)
attn = attn.view(-1, self.num_heads, N, N)
attn = self.softmax(attn)
else:
attn = self.softmax(attn)
attn = self.attn_drop(attn)
x = (attn @ v).transpose(1, 2).reshape(B_, N, C)
x = self.proj(x)
x = self.proj_drop(x)
return x
def extra_repr(self) -> str:
return f'dim={self.dim}, window_size={self.window_size}, num_heads={self.num_heads}'
def flops(self, N):
# calculate flops for 1 window with token length of N
flops = 0
# qkv = self.qkv(x)
flops += N * self.dim * 3 * self.dim
# attn = (q @ k.transpose(-2, -1))
flops += self.num_heads * N * (self.dim // self.num_heads) * N
# x = (attn @ v)
flops += self.num_heads * N * N * (self.dim // self.num_heads)
# x = self.proj(x)
flops += N * self.dim * self.dim
return flops
class SwinTransformerBlock(nn.Module):
r""" Swin Transformer Block.
Args:
dim (int): Number of input channels.
input_resolution (tuple[int]): Input resolution.
num_heads (int): Number of attention heads.
window_size (int): Window size.
shift_size (int): Shift size for SW-MSA.
mlp_ratio (float): Ratio of mlp hidden dim to embedding dim.
qkv_bias (bool, optional): If True, add a learnable bias to query, key, value. Default: True
qk_scale (float | None, optional): Override default qk scale of head_dim ** -0.5 if set.
drop (float, optional): Dropout rate. Default: 0.0
attn_drop (float, optional): Attention dropout rate. Default: 0.0
drop_path (float, optional): Stochastic depth rate. Default: 0.0
act_layer (nn.Module, optional): Activation layer. Default: nn.GELU
norm_layer (nn.Module, optional): Normalization layer. Default: nn.LayerNorm
"""
def __init__(self, dim, input_resolution, num_heads, window_size=7, shift_size=0,
mlp_ratio=4., qkv_bias=True, qk_scale=None, drop=0., attn_drop=0., drop_path=0.,
act_layer=nn.GELU, norm_layer=nn.LayerNorm):
super().__init__()
self.dim = dim
self.input_resolution = input_resolution
self.num_heads = num_heads
self.window_size = window_size
self.shift_size = shift_size
self.mlp_ratio = mlp_ratio
if min(self.input_resolution) <= self.window_size:
# if window size is larger than input resolution, we don't partition windows
self.shift_size = 0
self.window_size = min(self.input_resolution)
assert 0 <= self.shift_size < self.window_size, "shift_size must in 0-window_size"
self.norm1 = norm_layer(dim)
self.attn = WindowAttention(
dim, window_size=to_2tuple(self.window_size), num_heads=num_heads,
qkv_bias=qkv_bias, qk_scale=qk_scale, attn_drop=attn_drop, proj_drop=drop)
self.drop_path = DropPath(drop_path) if drop_path > 0. else nn.Identity()
self.norm2 = norm_layer(dim)
mlp_hidden_dim = int(dim * mlp_ratio)
self.mlp = Mlp(in_features=dim, hidden_features=mlp_hidden_dim, act_layer=act_layer, drop=drop)
if self.shift_size > 0:
attn_mask = self.calculate_mask(self.input_resolution)
else:
attn_mask = None
self.register_buffer("attn_mask", attn_mask)
def calculate_mask(self, x_size):
# calculate attention mask for SW-MSA
H, W = x_size
img_mask = torch.zeros((1, H, W, 1)) # 1 H W 1
h_slices = (slice(0, -self.window_size),
slice(-self.window_size, -self.shift_size),
slice(-self.shift_size, None))
w_slices = (slice(0, -self.window_size),
slice(-self.window_size, -self.shift_size),
slice(-self.shift_size, None))
cnt = 0
for h in h_slices:
for w in w_slices:
img_mask[:, h, w, :] = cnt
cnt += 1
mask_windows = window_partition(img_mask, self.window_size) # nW, window_size, window_size, 1
mask_windows = mask_windows.view(-1, self.window_size * self.window_size)
attn_mask = mask_windows.unsqueeze(1) - mask_windows.unsqueeze(2)
attn_mask = attn_mask.masked_fill(attn_mask != 0, float(-100.0)).masked_fill(attn_mask == 0, float(0.0))
return attn_mask
def forward(self, x, x_size):
H, W = x_size
B, L, C = x.shape
# assert L == H * W, "input feature has wrong size"
shortcut = x
x = self.norm1(x)
x = x.view(B, H, W, C)
# cyclic shift
if self.shift_size > 0:
shifted_x = torch.roll(x, shifts=(-self.shift_size, -self.shift_size), dims=(1, 2))
else:
shifted_x = x
# partition windows
x_windows = window_partition(shifted_x, self.window_size) # nW*B, window_size, window_size, C
x_windows = x_windows.view(-1, self.window_size * self.window_size, C) # nW*B, window_size*window_size, C
# W-MSA/SW-MSA (to be compatible for testing on images whose shapes are the multiple of window size
if self.input_resolution == x_size:
attn_windows = self.attn(x_windows, mask=self.attn_mask) # nW*B, window_size*window_size, C
else:
attn_windows = self.attn(x_windows, mask=self.calculate_mask(x_size).to(x.device))
# merge windows
attn_windows = attn_windows.view(-1, self.window_size, self.window_size, C)
shifted_x = window_reverse(attn_windows, self.window_size, H, W) # B H' W' C
# reverse cyclic shift
if self.shift_size > 0:
x = torch.roll(shifted_x, shifts=(self.shift_size, self.shift_size), dims=(1, 2))
else:
x = shifted_x
x = x.view(B, H * W, C)
# FFN
x = shortcut + self.drop_path(x)
x = x + self.drop_path(self.mlp(self.norm2(x)))
return x
def extra_repr(self) -> str:
return f"dim={self.dim}, input_resolution={self.input_resolution}, num_heads={self.num_heads}, " \
f"window_size={self.window_size}, shift_size={self.shift_size}, mlp_ratio={self.mlp_ratio}"
def flops(self):
flops = 0
H, W = self.input_resolution
# norm1
flops += self.dim * H * W
# W-MSA/SW-MSA
nW = H * W / self.window_size / self.window_size
flops += nW * self.attn.flops(self.window_size * self.window_size)
# mlp
flops += 2 * H * W * self.dim * self.dim * self.mlp_ratio
# norm2
flops += self.dim * H * W
return flops
class PatchMerging(nn.Module):
r""" Patch Merging Layer.
Args:
input_resolution (tuple[int]): Resolution of input feature.
dim (int): Number of input channels.
norm_layer (nn.Module, optional): Normalization layer. Default: nn.LayerNorm
"""
def __init__(self, input_resolution, dim, norm_layer=nn.LayerNorm):
super().__init__()
self.input_resolution = input_resolution
self.dim = dim
self.reduction = nn.Linear(4 * dim, 2 * dim, bias=False)
self.norm = norm_layer(4 * dim)
def forward(self, x):
"""
x: B, H*W, C
"""
H, W = self.input_resolution
B, L, C = x.shape
assert L == H * W, "input feature has wrong size"
assert H % 2 == 0 and W % 2 == 0, f"x size ({H}*{W}) are not even."
x = x.view(B, H, W, C)
x0 = x[:, 0::2, 0::2, :] # B H/2 W/2 C
x1 = x[:, 1::2, 0::2, :] # B H/2 W/2 C
x2 = x[:, 0::2, 1::2, :] # B H/2 W/2 C
x3 = x[:, 1::2, 1::2, :] # B H/2 W/2 C
x = torch.cat([x0, x1, x2, x3], -1) # B H/2 W/2 4*C
x = x.view(B, -1, 4 * C) # B H/2*W/2 4*C
x = self.norm(x)
x = self.reduction(x)
return x
def extra_repr(self) -> str:
return f"input_resolution={self.input_resolution}, dim={self.dim}"
def flops(self):
H, W = self.input_resolution
flops = H * W * self.dim
flops += (H // 2) * (W // 2) * 4 * self.dim * 2 * self.dim
return flops
class BasicLayer(nn.Module):
""" A basic Swin Transformer layer for one stage.
Args:
dim (int): Number of input channels.
input_resolution (tuple[int]): Input resolution.
depth (int): Number of blocks.
num_heads (int): Number of attention heads.
window_size (int): Local window size.
mlp_ratio (float): Ratio of mlp hidden dim to embedding dim.
qkv_bias (bool, optional): If True, add a learnable bias to query, key, value. Default: True
qk_scale (float | None, optional): Override default qk scale of head_dim ** -0.5 if set.
drop (float, optional): Dropout rate. Default: 0.0
attn_drop (float, optional): Attention dropout rate. Default: 0.0
drop_path (float | tuple[float], optional): Stochastic depth rate. Default: 0.0
norm_layer (nn.Module, optional): Normalization layer. Default: nn.LayerNorm
downsample (nn.Module | None, optional): Downsample layer at the end of the layer. Default: None
use_checkpoint (bool): Whether to use checkpointing to save memory. Default: False.
"""
def __init__(self, dim, input_resolution, depth, num_heads, window_size,
mlp_ratio=4., qkv_bias=True, qk_scale=None, drop=0., attn_drop=0.,
drop_path=0., norm_layer=nn.LayerNorm, downsample=None, use_checkpoint=False):
super().__init__()
self.dim = dim
self.input_resolution = input_resolution
self.depth = depth
self.use_checkpoint = use_checkpoint
# build blocks
self.blocks = nn.ModuleList([
SwinTransformerBlock(dim=dim, input_resolution=input_resolution,
num_heads=num_heads, window_size=window_size,
shift_size=0 if (i % 2 == 0) else window_size // 2,
mlp_ratio=mlp_ratio,
qkv_bias=qkv_bias, qk_scale=qk_scale,
drop=drop, attn_drop=attn_drop,
drop_path=drop_path[i] if isinstance(drop_path, list) else drop_path,
norm_layer=norm_layer)
for i in range(depth)])
# patch merging layer
if downsample is not None:
self.downsample = downsample(input_resolution, dim=dim, norm_layer=norm_layer)
else:
self.downsample = None
def forward(self, x, x_size):
for blk in self.blocks:
if self.use_checkpoint:
x = checkpoint.checkpoint(blk, x, x_size)
else:
x = blk(x, x_size)
if self.downsample is not None:
x = self.downsample(x)
return x
def extra_repr(self) -> str:
return f"dim={self.dim}, input_resolution={self.input_resolution}, depth={self.depth}"
def flops(self):
flops = 0
for blk in self.blocks:
flops += blk.flops()
if self.downsample is not None:
flops += self.downsample.flops()
return flops
class RSTB(nn.Module):
"""Residual Swin Transformer Block (RSTB).
Args:
dim (int): Number of input channels.
input_resolution (tuple[int]): Input resolution.
depth (int): Number of blocks.
num_heads (int): Number of attention heads.
window_size (int): Local window size.
mlp_ratio (float): Ratio of mlp hidden dim to embedding dim.
qkv_bias (bool, optional): If True, add a learnable bias to query, key, value. Default: True
qk_scale (float | None, optional): Override default qk scale of head_dim ** -0.5 if set.
drop (float, optional): Dropout rate. Default: 0.0
attn_drop (float, optional): Attention dropout rate. Default: 0.0
drop_path (float | tuple[float], optional): Stochastic depth rate. Default: 0.0
norm_layer (nn.Module, optional): Normalization layer. Default: nn.LayerNorm
downsample (nn.Module | None, optional): Downsample layer at the end of the layer. Default: None
use_checkpoint (bool): Whether to use checkpointing to save memory. Default: False.
img_size: Input image size.
patch_size: Patch size.
resi_connection: The convolutional block before residual connection.
"""
def __init__(self, dim, input_resolution, depth, num_heads, window_size,
mlp_ratio=4., qkv_bias=True, qk_scale=None, drop=0., attn_drop=0.,
drop_path=0., norm_layer=nn.LayerNorm, downsample=None, use_checkpoint=False,
img_size=224, patch_size=4, resi_connection='1conv'):
super(RSTB, self).__init__()
self.dim = dim
self.input_resolution = input_resolution
self.residual_group = BasicLayer(dim=dim,
input_resolution=input_resolution,
depth=depth,
num_heads=num_heads,
window_size=window_size,
mlp_ratio=mlp_ratio,
qkv_bias=qkv_bias, qk_scale=qk_scale,
drop=drop, attn_drop=attn_drop,
drop_path=drop_path,
norm_layer=norm_layer,
downsample=downsample,
use_checkpoint=use_checkpoint)
if resi_connection == '1conv':
self.conv = nn.Conv2d(dim, dim, 3, 1, 1)
elif resi_connection == '3conv':
# to save parameters and memory
self.conv = nn.Sequential(nn.Conv2d(dim, dim // 4, 3, 1, 1), nn.LeakyReLU(negative_slope=0.2, inplace=True),
nn.Conv2d(dim // 4, dim // 4, 1, 1, 0),
nn.LeakyReLU(negative_slope=0.2, inplace=True),
nn.Conv2d(dim // 4, dim, 3, 1, 1))
self.patch_embed = PatchEmbed(
img_size=img_size, patch_size=patch_size, in_chans=0, embed_dim=dim,
norm_layer=None)
self.patch_unembed = PatchUnEmbed(
img_size=img_size, patch_size=patch_size, in_chans=0, embed_dim=dim,
norm_layer=None)
def forward(self, x, x_size):
return self.patch_embed(self.conv(self.patch_unembed(self.residual_group(x, x_size), x_size))) + x
def flops(self):
flops = 0
flops += self.residual_group.flops()
H, W = self.input_resolution
flops += H * W * self.dim * self.dim * 9
flops += self.patch_embed.flops()
flops += self.patch_unembed.flops()
return flops
class PatchEmbed(nn.Module):
r""" Image to Patch Embedding
Args:
img_size (int): Image size. Default: 224.
patch_size (int): Patch token size. Default: 4.
in_chans (int): Number of input image channels. Default: 3.
embed_dim (int): Number of linear projection output channels. Default: 96.
norm_layer (nn.Module, optional): Normalization layer. Default: None
"""
def __init__(self, img_size=224, patch_size=4, in_chans=3, embed_dim=96, norm_layer=None):
super().__init__()
img_size = to_2tuple(img_size)
patch_size = to_2tuple(patch_size)
patches_resolution = [img_size[0] // patch_size[0], img_size[1] // patch_size[1]]
self.img_size = img_size
self.patch_size = patch_size
self.patches_resolution = patches_resolution
self.num_patches = patches_resolution[0] * patches_resolution[1]
self.in_chans = in_chans
self.embed_dim = embed_dim
if norm_layer is not None:
self.norm = norm_layer(embed_dim)
else:
self.norm = None
def forward(self, x):
x = x.flatten(2).transpose(1, 2) # B Ph*Pw C
if self.norm is not None:
x = self.norm(x)
return x
def flops(self):
flops = 0
H, W = self.img_size
if self.norm is not None:
flops += H * W * self.embed_dim
return flops
class PatchUnEmbed(nn.Module):
r""" Image to Patch Unembedding
Args:
img_size (int): Image size. Default: 224.
patch_size (int): Patch token size. Default: 4.
in_chans (int): Number of input image channels. Default: 3.
embed_dim (int): Number of linear projection output channels. Default: 96.
norm_layer (nn.Module, optional): Normalization layer. Default: None
"""
def __init__(self, img_size=224, patch_size=4, in_chans=3, embed_dim=96, norm_layer=None):
super().__init__()
img_size = to_2tuple(img_size)
patch_size = to_2tuple(patch_size)
patches_resolution = [img_size[0] // patch_size[0], img_size[1] // patch_size[1]]
self.img_size = img_size
self.patch_size = patch_size
self.patches_resolution = patches_resolution
self.num_patches = patches_resolution[0] * patches_resolution[1]
self.in_chans = in_chans
self.embed_dim = embed_dim
def forward(self, x, x_size):
B, HW, C = x.shape
x = x.transpose(1, 2).view(B, self.embed_dim, x_size[0], x_size[1]) # B Ph*Pw C
return x
def flops(self):
flops = 0
return flops
class Upsample(nn.Sequential):
"""Upsample module.
Args:
scale (int): Scale factor. Supported scales: 2^n and 3.
num_feat (int): Channel number of intermediate features.
"""
def __init__(self, scale, num_feat):
m = []
if (scale & (scale - 1)) == 0: # scale = 2^n
for _ in range(int(math.log(scale, 2))):
m.append(nn.Conv2d(num_feat, 4 * num_feat, 3, 1, 1))
m.append(nn.PixelShuffle(2))
elif scale == 3:
m.append(nn.Conv2d(num_feat, 9 * num_feat, 3, 1, 1))
m.append(nn.PixelShuffle(3))
else:
raise ValueError(f'scale {scale} is not supported. ' 'Supported scales: 2^n and 3.')
super(Upsample, self).__init__(*m)
class UpsampleOneStep(nn.Sequential):
"""UpsampleOneStep module (the difference with Upsample is that it always only has 1conv + 1pixelshuffle)
Used in lightweight SR to save parameters.
Args:
scale (int): Scale factor. Supported scales: 2^n and 3.
num_feat (int): Channel number of intermediate features.
"""
def __init__(self, scale, num_feat, num_out_ch, input_resolution=None):
self.num_feat = num_feat
self.input_resolution = input_resolution
m = []
m.append(nn.Conv2d(num_feat, (scale ** 2) * num_out_ch, 3, 1, 1))
m.append(nn.PixelShuffle(scale))
super(UpsampleOneStep, self).__init__(*m)
def flops(self):
H, W = self.input_resolution
flops = H * W * self.num_feat * 3 * 9
return flops
class SwinIR(nn.Module):
r""" SwinIR
A PyTorch impl of : `SwinIR: Image Restoration Using Swin Transformer`, based on Swin Transformer.
Args:
img_size (int | tuple(int)): Input image size. Default 64
patch_size (int | tuple(int)): Patch size. Default: 1
in_chans (int): Number of input image channels. Default: 3
embed_dim (int): Patch embedding dimension. Default: 96
depths (tuple(int)): Depth of each Swin Transformer layer.
num_heads (tuple(int)): Number of attention heads in different layers.
window_size (int): Window size. Default: 7
mlp_ratio (float): Ratio of mlp hidden dim to embedding dim. Default: 4
qkv_bias (bool): If True, add a learnable bias to query, key, value. Default: True
qk_scale (float): Override default qk scale of head_dim ** -0.5 if set. Default: None
drop_rate (float): Dropout rate. Default: 0
attn_drop_rate (float): Attention dropout rate. Default: 0
drop_path_rate (float): Stochastic depth rate. Default: 0.1
norm_layer (nn.Module): Normalization layer. Default: nn.LayerNorm.
ape (bool): If True, add absolute position embedding to the patch embedding. Default: False
patch_norm (bool): If True, add normalization after patch embedding. Default: True
use_checkpoint (bool): Whether to use checkpointing to save memory. Default: False
upscale: Upscale factor. 2/3/4/8 for image SR, 1 for denoising and compress artifact reduction
img_range: Image range. 1. or 255.
upsampler: The reconstruction reconstruction module. 'pixelshuffle'/'pixelshuffledirect'/'nearest+conv'/None
resi_connection: The convolutional block before residual connection. '1conv'/'3conv'
"""
def __init__(self, img_size=64, patch_size=1, in_chans=3,
embed_dim=96, depths=(6, 6, 6, 6), num_heads=(6, 6, 6, 6),
window_size=7, mlp_ratio=4., qkv_bias=True, qk_scale=None,
drop_rate=0., attn_drop_rate=0., drop_path_rate=0.1,
norm_layer=nn.LayerNorm, ape=False, patch_norm=True,
use_checkpoint=False, upscale=2, img_range=1., upsampler='', resi_connection='1conv',
**kwargs):
super(SwinIR, self).__init__()
num_in_ch = in_chans
num_out_ch = in_chans
num_feat = 64
self.img_range = img_range
if in_chans == 3:
rgb_mean = (0.4488, 0.4371, 0.4040)
self.mean = torch.Tensor(rgb_mean).view(1, 3, 1, 1)
else:
self.mean = torch.zeros(1, 1, 1, 1)
self.upscale = upscale
self.upsampler = upsampler
self.window_size = window_size
#####################################################################################################
################################### 1, shallow feature extraction ###################################
self.conv_first = nn.Conv2d(num_in_ch, embed_dim, 3, 1, 1)
#####################################################################################################
################################### 2, deep feature extraction ######################################
self.num_layers = len(depths)
self.embed_dim = embed_dim
self.ape = ape
self.patch_norm = patch_norm
self.num_features = embed_dim
self.mlp_ratio = mlp_ratio
# split image into non-overlapping patches
self.patch_embed = PatchEmbed(
img_size=img_size, patch_size=patch_size, in_chans=embed_dim, embed_dim=embed_dim,
norm_layer=norm_layer if self.patch_norm else None)
num_patches = self.patch_embed.num_patches
patches_resolution = self.patch_embed.patches_resolution
self.patches_resolution = patches_resolution
# merge non-overlapping patches into image
self.patch_unembed = PatchUnEmbed(
img_size=img_size, patch_size=patch_size, in_chans=embed_dim, embed_dim=embed_dim,
norm_layer=norm_layer if self.patch_norm else None)
# absolute position embedding
if self.ape:
self.absolute_pos_embed = nn.Parameter(torch.zeros(1, num_patches, embed_dim))
trunc_normal_(self.absolute_pos_embed, std=.02)
self.pos_drop = nn.Dropout(p=drop_rate)
# stochastic depth
dpr = [x.item() for x in torch.linspace(0, drop_path_rate, sum(depths))] # stochastic depth decay rule
# build Residual Swin Transformer blocks (RSTB)
self.layers = nn.ModuleList()
for i_layer in range(self.num_layers):
layer = RSTB(dim=embed_dim,
input_resolution=(patches_resolution[0],
patches_resolution[1]),
depth=depths[i_layer],
num_heads=num_heads[i_layer],
window_size=window_size,
mlp_ratio=self.mlp_ratio,
qkv_bias=qkv_bias, qk_scale=qk_scale,
drop=drop_rate, attn_drop=attn_drop_rate,
drop_path=dpr[sum(depths[:i_layer]):sum(depths[:i_layer + 1])], # no impact on SR results
norm_layer=norm_layer,
downsample=None,
use_checkpoint=use_checkpoint,
img_size=img_size,
patch_size=patch_size,
resi_connection=resi_connection
)
self.layers.append(layer)
self.norm = norm_layer(self.num_features)
# build the last conv layer in deep feature extraction
if resi_connection == '1conv':
self.conv_after_body = nn.Conv2d(embed_dim, embed_dim, 3, 1, 1)
elif resi_connection == '3conv':
# to save parameters and memory
self.conv_after_body = nn.Sequential(nn.Conv2d(embed_dim, embed_dim // 4, 3, 1, 1),
nn.LeakyReLU(negative_slope=0.2, inplace=True),
nn.Conv2d(embed_dim // 4, embed_dim // 4, 1, 1, 0),
nn.LeakyReLU(negative_slope=0.2, inplace=True),
nn.Conv2d(embed_dim // 4, embed_dim, 3, 1, 1))
#####################################################################################################
################################ 3, high quality image reconstruction ################################
if self.upsampler == 'pixelshuffle':
# for classical SR
self.conv_before_upsample = nn.Sequential(nn.Conv2d(embed_dim, num_feat, 3, 1, 1),
nn.LeakyReLU(inplace=True))
self.upsample = Upsample(upscale, num_feat)
self.conv_last = nn.Conv2d(num_feat, num_out_ch, 3, 1, 1)
elif self.upsampler == 'pixelshuffledirect':
# for lightweight SR (to save parameters)
self.upsample = UpsampleOneStep(upscale, embed_dim, num_out_ch,
(patches_resolution[0], patches_resolution[1]))
elif self.upsampler == 'nearest+conv':
# for real-world SR (less artifacts)
self.conv_before_upsample = nn.Sequential(nn.Conv2d(embed_dim, num_feat, 3, 1, 1),
nn.LeakyReLU(inplace=True))
self.conv_up1 = nn.Conv2d(num_feat, num_feat, 3, 1, 1)
if self.upscale == 4:
self.conv_up2 = nn.Conv2d(num_feat, num_feat, 3, 1, 1)
self.conv_hr = nn.Conv2d(num_feat, num_feat, 3, 1, 1)
self.conv_last = nn.Conv2d(num_feat, num_out_ch, 3, 1, 1)
self.lrelu = nn.LeakyReLU(negative_slope=0.2, inplace=True)
else:
# for image denoising and JPEG compression artifact reduction
self.conv_last = nn.Conv2d(embed_dim, num_out_ch, 3, 1, 1)
self.apply(self._init_weights)
def _init_weights(self, m):
if isinstance(m, nn.Linear):
trunc_normal_(m.weight, std=.02)
if isinstance(m, nn.Linear) and m.bias is not None:
nn.init.constant_(m.bias, 0)
elif isinstance(m, nn.LayerNorm):
nn.init.constant_(m.bias, 0)
nn.init.constant_(m.weight, 1.0)
@torch.jit.ignore
def no_weight_decay(self):
return {'absolute_pos_embed'}
@torch.jit.ignore
def no_weight_decay_keywords(self):
return {'relative_position_bias_table'}
def check_image_size(self, x):
_, _, h, w = x.size()
mod_pad_h = (self.window_size - h % self.window_size) % self.window_size
mod_pad_w = (self.window_size - w % self.window_size) % self.window_size
x = F.pad(x, (0, mod_pad_w, 0, mod_pad_h), 'reflect')
return x
def forward_features(self, x):
x_size = (x.shape[2], x.shape[3])
x = self.patch_embed(x)
if self.ape:
x = x + self.absolute_pos_embed
x = self.pos_drop(x)
for layer in self.layers:
x = layer(x, x_size)
x = self.norm(x) # B L C
x = self.patch_unembed(x, x_size)
return x
def forward(self, x):
H, W = x.shape[2:]
x = self.check_image_size(x)
self.mean = self.mean.type_as(x)
x = (x - self.mean) * self.img_range
if self.upsampler == 'pixelshuffle':
# for classical SR
x = self.conv_first(x)
x = self.conv_after_body(self.forward_features(x)) + x
x = self.conv_before_upsample(x)
x = self.conv_last(self.upsample(x))
elif self.upsampler == 'pixelshuffledirect':
# for lightweight SR
x = self.conv_first(x)
x = self.conv_after_body(self.forward_features(x)) + x
x = self.upsample(x)
elif self.upsampler == 'nearest+conv':
# for real-world SR
x = self.conv_first(x)
x = self.conv_after_body(self.forward_features(x)) + x
x = self.conv_before_upsample(x)
x = self.lrelu(self.conv_up1(torch.nn.functional.interpolate(x, scale_factor=2, mode='nearest')))
if self.upscale == 4:
x = self.lrelu(self.conv_up2(torch.nn.functional.interpolate(x, scale_factor=2, mode='nearest')))
x = self.conv_last(self.lrelu(self.conv_hr(x)))
else:
# for image denoising and JPEG compression artifact reduction
x_first = self.conv_first(x)
res = self.conv_after_body(self.forward_features(x_first)) + x_first
x = x + self.conv_last(res)
x = x / self.img_range + self.mean
return x[:, :, :H*self.upscale, :W*self.upscale]
def flops(self):
flops = 0
H, W = self.patches_resolution
flops += H * W * 3 * self.embed_dim * 9
flops += self.patch_embed.flops()
for layer in self.layers:
flops += layer.flops()
flops += H * W * 3 * self.embed_dim * self.embed_dim
flops += self.upsample.flops()
return flops
if __name__ == '__main__':
upscale = 4
window_size = 8
height = (1024 // upscale // window_size + 1) * window_size
width = (720 // upscale // window_size + 1) * window_size
model = SwinIR(upscale=2, img_size=(height, width),
window_size=window_size, img_range=1., depths=[6, 6, 6, 6],
embed_dim=60, num_heads=[6, 6, 6, 6], mlp_ratio=2, upsampler='pixelshuffledirect')
print(model)
print(height, width, model.flops() / 1e9)
x = torch.randn((1, 3, height, width))
x = model(x)
print(x.shape)

1017
extensions-builtin/SwinIR/swinir_model_arch_v2.py
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4
extensions-builtin/extra-options-section/scripts/extra_options_section.py
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@@ -1,7 +1,7 @@
import math
import gradio as gr
from modules import scripts, shared, ui_components, ui_settings, generation_parameters_copypaste
from modules import scripts, shared, ui_components, ui_settings, infotext_utils
from modules.ui_components import FormColumn
@@ -25,7 +25,7 @@ class ExtraOptionsSection(scripts.Script):
extra_options = shared.opts.extra_options_img2img if is_img2img else shared.opts.extra_options_txt2img
elem_id_tabname = "extra_options_" + ("img2img" if is_img2img else "txt2img")
mapping = {k: v for v, k in generation_parameters_copypaste.infotext_to_setting_name_mapping}
mapping = {k: v for v, k in infotext_utils.infotext_to_setting_name_mapping}
with gr.Blocks() as interface:
with gr.Accordion("Options", open=False, elem_id=elem_id_tabname) if shared.opts.extra_options_accordion and extra_options else gr.Group(elem_id=elem_id_tabname):

747
extensions-builtin/soft-inpainting/scripts/soft_inpainting.py Normal file
View File

@@ -0,0 +1,747 @@
import numpy as np
import gradio as gr
import math
from modules.ui_components import InputAccordion
import modules.scripts as scripts
class SoftInpaintingSettings:
def __init__(self,
mask_blend_power,
mask_blend_scale,
inpaint_detail_preservation,
composite_mask_influence,
composite_difference_threshold,
composite_difference_contrast):
self.mask_blend_power = mask_blend_power
self.mask_blend_scale = mask_blend_scale
self.inpaint_detail_preservation = inpaint_detail_preservation
self.composite_mask_influence = composite_mask_influence
self.composite_difference_threshold = composite_difference_threshold
self.composite_difference_contrast = composite_difference_contrast
def add_generation_params(self, dest):
dest[enabled_gen_param_label] = True
dest[gen_param_labels.mask_blend_power] = self.mask_blend_power
dest[gen_param_labels.mask_blend_scale] = self.mask_blend_scale
dest[gen_param_labels.inpaint_detail_preservation] = self.inpaint_detail_preservation
dest[gen_param_labels.composite_mask_influence] = self.composite_mask_influence
dest[gen_param_labels.composite_difference_threshold] = self.composite_difference_threshold
dest[gen_param_labels.composite_difference_contrast] = self.composite_difference_contrast
# ------------------- Methods -------------------
def processing_uses_inpainting(p):
# TODO: Figure out a better way to determine if inpainting is being used by p
if getattr(p, "image_mask", None) is not None:
return True
if getattr(p, "mask", None) is not None:
return True
if getattr(p, "nmask", None) is not None:
return True
return False
def latent_blend(settings, a, b, t):
"""
Interpolates two latent image representations according to the parameter t,
where the interpolated vectors' magnitudes are also interpolated separately.
The "detail_preservation" factor biases the magnitude interpolation towards
the larger of the two magnitudes.
"""
import torch
# NOTE: We use inplace operations wherever possible.
# [4][w][h] to [1][4][w][h]
t2 = t.unsqueeze(0)
# [4][w][h] to [1][1][w][h] - the [4] seem redundant.
t3 = t[0].unsqueeze(0).unsqueeze(0)
one_minus_t2 = 1 - t2
one_minus_t3 = 1 - t3
# Linearly interpolate the image vectors.
a_scaled = a * one_minus_t2
b_scaled = b * t2
image_interp = a_scaled
image_interp.add_(b_scaled)
result_type = image_interp.dtype
del a_scaled, b_scaled, t2, one_minus_t2
# Calculate the magnitude of the interpolated vectors. (We will remove this magnitude.)
# 64-bit operations are used here to allow large exponents.
current_magnitude = torch.norm(image_interp, p=2, dim=1, keepdim=True).to(torch.float64).add_(0.00001)
# Interpolate the powered magnitudes, then un-power them (bring them back to a power of 1).
a_magnitude = torch.norm(a, p=2, dim=1, keepdim=True).to(torch.float64).pow_(
settings.inpaint_detail_preservation) * one_minus_t3
b_magnitude = torch.norm(b, p=2, dim=1, keepdim=True).to(torch.float64).pow_(
settings.inpaint_detail_preservation) * t3
desired_magnitude = a_magnitude
desired_magnitude.add_(b_magnitude).pow_(1 / settings.inpaint_detail_preservation)
del a_magnitude, b_magnitude, t3, one_minus_t3
# Change the linearly interpolated image vectors' magnitudes to the value we want.
# This is the last 64-bit operation.
image_interp_scaling_factor = desired_magnitude
image_interp_scaling_factor.div_(current_magnitude)
image_interp_scaling_factor = image_interp_scaling_factor.to(result_type)
image_interp_scaled = image_interp
image_interp_scaled.mul_(image_interp_scaling_factor)
del current_magnitude
del desired_magnitude
del image_interp
del image_interp_scaling_factor
del result_type
return image_interp_scaled
def get_modified_nmask(settings, nmask, sigma):
"""
Converts a negative mask representing the transparency of the original latent vectors being overlayed
to a mask that is scaled according to the denoising strength for this step.
Where:
0 = fully opaque, infinite density, fully masked
1 = fully transparent, zero density, fully unmasked
We bring this transparency to a power, as this allows one to simulate N number of blending operations
where N can be any positive real value. Using this one can control the balance of influence between
the denoiser and the original latents according to the sigma value.
NOTE: "mask" is not used
"""
import torch
return torch.pow(nmask, (sigma ** settings.mask_blend_power) * settings.mask_blend_scale)
def apply_adaptive_masks(
settings: SoftInpaintingSettings,
nmask,
latent_orig,
latent_processed,
overlay_images,
width, height,
paste_to):
import torch
import modules.processing as proc
import modules.images as images
from PIL import Image, ImageOps, ImageFilter
# TODO: Bias the blending according to the latent mask, add adjustable parameter for bias control.
latent_mask = nmask[0].float()
# convert the original mask into a form we use to scale distances for thresholding
mask_scalar = 1 - (torch.clamp(latent_mask, min=0, max=1) ** (settings.mask_blend_scale / 2))
mask_scalar = (0.5 * (1 - settings.composite_mask_influence)
+ mask_scalar * settings.composite_mask_influence)
mask_scalar = mask_scalar / (1.00001 - mask_scalar)
mask_scalar = mask_scalar.cpu().numpy()
latent_distance = torch.norm(latent_processed - latent_orig, p=2, dim=1)
kernel, kernel_center = get_gaussian_kernel(stddev_radius=1.5, max_radius=2)
masks_for_overlay = []
for i, (distance_map, overlay_image) in enumerate(zip(latent_distance, overlay_images)):
converted_mask = distance_map.float().cpu().numpy()
converted_mask = weighted_histogram_filter(converted_mask, kernel, kernel_center,
percentile_min=0.9, percentile_max=1, min_width=1)
converted_mask = weighted_histogram_filter(converted_mask, kernel, kernel_center,
percentile_min=0.25, percentile_max=0.75, min_width=1)
# The distance at which opacity of original decreases to 50%
half_weighted_distance = settings.composite_difference_threshold * mask_scalar
converted_mask = converted_mask / half_weighted_distance
converted_mask = 1 / (1 + converted_mask ** settings.composite_difference_contrast)
converted_mask = smootherstep(converted_mask)
converted_mask = 1 - converted_mask
converted_mask = 255. * converted_mask
converted_mask = converted_mask.astype(np.uint8)
converted_mask = Image.fromarray(converted_mask)
converted_mask = images.resize_image(2, converted_mask, width, height)
converted_mask = proc.create_binary_mask(converted_mask, round=False)
# Remove aliasing artifacts using a gaussian blur.
converted_mask = converted_mask.filter(ImageFilter.GaussianBlur(radius=4))
# Expand the mask to fit the whole image if needed.
if paste_to is not None:
converted_mask = proc.uncrop(converted_mask,
(overlay_image.width, overlay_image.height),
paste_to)
masks_for_overlay.append(converted_mask)
image_masked = Image.new('RGBa', (overlay_image.width, overlay_image.height))
image_masked.paste(overlay_image.convert("RGBA").convert("RGBa"),
mask=ImageOps.invert(converted_mask.convert('L')))
overlay_images[i] = image_masked.convert('RGBA')
return masks_for_overlay
def apply_masks(
settings,
nmask,
overlay_images,
width, height,
paste_to):
import torch
import modules.processing as proc
import modules.images as images
from PIL import Image, ImageOps, ImageFilter
converted_mask = nmask[0].float()
converted_mask = torch.clamp(converted_mask, min=0, max=1).pow_(settings.mask_blend_scale / 2)
converted_mask = 255. * converted_mask
converted_mask = converted_mask.cpu().numpy().astype(np.uint8)
converted_mask = Image.fromarray(converted_mask)
converted_mask = images.resize_image(2, converted_mask, width, height)
converted_mask = proc.create_binary_mask(converted_mask, round=False)
# Remove aliasing artifacts using a gaussian blur.
converted_mask = converted_mask.filter(ImageFilter.GaussianBlur(radius=4))
# Expand the mask to fit the whole image if needed.
if paste_to is not None:
converted_mask = proc.uncrop(converted_mask,
(width, height),
paste_to)
masks_for_overlay = []
for i, overlay_image in enumerate(overlay_images):
masks_for_overlay[i] = converted_mask
image_masked = Image.new('RGBa', (overlay_image.width, overlay_image.height))
image_masked.paste(overlay_image.convert("RGBA").convert("RGBa"),
mask=ImageOps.invert(converted_mask.convert('L')))
overlay_images[i] = image_masked.convert('RGBA')
return masks_for_overlay
def weighted_histogram_filter(img, kernel, kernel_center, percentile_min=0.0, percentile_max=1.0, min_width=1.0):
"""
Generalization convolution filter capable of applying
weighted mean, median, maximum, and minimum filters
parametrically using an arbitrary kernel.
Args:
img (nparray):
The image, a 2-D array of floats, to which the filter is being applied.
kernel (nparray):
The kernel, a 2-D array of floats.
kernel_center (nparray):
The kernel center coordinate, a 1-D array with two elements.
percentile_min (float):
The lower bound of the histogram window used by the filter,
from 0 to 1.
percentile_max (float):
The upper bound of the histogram window used by the filter,
from 0 to 1.
min_width (float):
The minimum size of the histogram window bounds, in weight units.
Must be greater than 0.
Returns:
(nparray): A filtered copy of the input image "img", a 2-D array of floats.
"""
# Converts an index tuple into a vector.
def vec(x):
return np.array(x)
kernel_min = -kernel_center
kernel_max = vec(kernel.shape) - kernel_center
def weighted_histogram_filter_single(idx):
idx = vec(idx)
min_index = np.maximum(0, idx + kernel_min)
max_index = np.minimum(vec(img.shape), idx + kernel_max)
window_shape = max_index - min_index
class WeightedElement:
"""
An element of the histogram, its weight
and bounds.
"""
def __init__(self, value, weight):
self.value: float = value
self.weight: float = weight
self.window_min: float = 0.0
self.window_max: float = 1.0
# Collect the values in the image as WeightedElements,
# weighted by their corresponding kernel values.
values = []
for window_tup in np.ndindex(tuple(window_shape)):
window_index = vec(window_tup)
image_index = window_index + min_index
centered_kernel_index = image_index - idx
kernel_index = centered_kernel_index + kernel_center
element = WeightedElement(img[tuple(image_index)], kernel[tuple(kernel_index)])
values.append(element)
def sort_key(x: WeightedElement):
return x.value
values.sort(key=sort_key)
# Calculate the height of the stack (sum)
# and each sample's range they occupy in the stack
sum = 0
for i in range(len(values)):
values[i].window_min = sum
sum += values[i].weight
values[i].window_max = sum
# Calculate what range of this stack ("window")
# we want to get the weighted average across.
window_min = sum * percentile_min
window_max = sum * percentile_max
window_width = window_max - window_min
# Ensure the window is within the stack and at least a certain size.
if window_width < min_width:
window_center = (window_min + window_max) / 2
window_min = window_center - min_width / 2
window_max = window_center + min_width / 2
if window_max > sum:
window_max = sum
window_min = sum - min_width
if window_min < 0:
window_min = 0
window_max = min_width
value = 0
value_weight = 0
# Get the weighted average of all the samples
# that overlap with the window, weighted
# by the size of their overlap.
for i in range(len(values)):
if window_min >= values[i].window_max:
continue
if window_max <= values[i].window_min:
break
s = max(window_min, values[i].window_min)
e = min(window_max, values[i].window_max)
w = e - s
value += values[i].value * w
value_weight += w
return value / value_weight if value_weight != 0 else 0
img_out = img.copy()
# Apply the kernel operation over each pixel.
for index in np.ndindex(img.shape):
img_out[index] = weighted_histogram_filter_single(index)
return img_out
def smoothstep(x):
"""
The smoothstep function, input should be clamped to 0-1 range.
Turns a diagonal line (f(x) = x) into a sigmoid-like curve.
"""
return x * x * (3 - 2 * x)
def smootherstep(x):
"""
The smootherstep function, input should be clamped to 0-1 range.
Turns a diagonal line (f(x) = x) into a sigmoid-like curve.
"""
return x * x * x * (x * (6 * x - 15) + 10)
def get_gaussian_kernel(stddev_radius=1.0, max_radius=2):
"""
Creates a Gaussian kernel with thresholded edges.
Args:
stddev_radius (float):
Standard deviation of the gaussian kernel, in pixels.
max_radius (int):
The size of the filter kernel. The number of pixels is (max_radius*2+1) ** 2.
The kernel is thresholded so that any values one pixel beyond this radius
is weighted at 0.
Returns:
(nparray, nparray): A kernel array (shape: (N, N)), its center coordinate (shape: (2))
"""
# Evaluates a 0-1 normalized gaussian function for a given square distance from the mean.
def gaussian(sqr_mag):
return math.exp(-sqr_mag / (stddev_radius * stddev_radius))
# Helper function for converting a tuple to an array.
def vec(x):
return np.array(x)
"""
Since a gaussian is unbounded, we need to limit ourselves
to a finite range.
We taper the ends off at the end of that range so they equal zero
while preserving the maximum value of 1 at the mean.
"""
zero_radius = max_radius + 1.0
gauss_zero = gaussian(zero_radius * zero_radius)
gauss_kernel_scale = 1 / (1 - gauss_zero)
def gaussian_kernel_func(coordinate):
x = coordinate[0] ** 2.0 + coordinate[1] ** 2.0
x = gaussian(x)
x -= gauss_zero
x *= gauss_kernel_scale
x = max(0.0, x)
return x
size = max_radius * 2 + 1
kernel_center = max_radius
kernel = np.zeros((size, size))
for index in np.ndindex(kernel.shape):
kernel[index] = gaussian_kernel_func(vec(index) - kernel_center)
return kernel, kernel_center
# ------------------- Constants -------------------
default = SoftInpaintingSettings(1, 0.5, 4, 0, 0.5, 2)
enabled_ui_label = "Soft inpainting"
enabled_gen_param_label = "Soft inpainting enabled"
enabled_el_id = "soft_inpainting_enabled"
ui_labels = SoftInpaintingSettings(
"Schedule bias",
"Preservation strength",
"Transition contrast boost",
"Mask influence",
"Difference threshold",
"Difference contrast")
ui_info = SoftInpaintingSettings(
"Shifts when preservation of original content occurs during denoising.",
"How strongly partially masked content should be preserved.",
"Amplifies the contrast that may be lost in partially masked regions.",
"How strongly the original mask should bias the difference threshold.",
"How much an image region can change before the original pixels are not blended in anymore.",
"How sharp the transition should be between blended and not blended.")
gen_param_labels = SoftInpaintingSettings(
"Soft inpainting schedule bias",
"Soft inpainting preservation strength",
"Soft inpainting transition contrast boost",
"Soft inpainting mask influence",
"Soft inpainting difference threshold",
"Soft inpainting difference contrast")
el_ids = SoftInpaintingSettings(
"mask_blend_power",
"mask_blend_scale",
"inpaint_detail_preservation",
"composite_mask_influence",
"composite_difference_threshold",
"composite_difference_contrast")
# ------------------- Script -------------------
class Script(scripts.Script):
def __init__(self):
self.section = "inpaint"
self.masks_for_overlay = None
self.overlay_images = None
def title(self):
return "Soft Inpainting"
def show(self, is_img2img):
return scripts.AlwaysVisible if is_img2img else False
def ui(self, is_img2img):
if not is_img2img:
return
with InputAccordion(False, label=enabled_ui_label, elem_id=enabled_el_id) as soft_inpainting_enabled:
with gr.Group():
gr.Markdown(
"""
Soft inpainting allows you to **seamlessly blend original content with inpainted content** according to the mask opacity.
**High _Mask blur_** values are recommended!
""")
power = \
gr.Slider(label=ui_labels.mask_blend_power,
info=ui_info.mask_blend_power,
minimum=0,
maximum=8,
step=0.1,
value=default.mask_blend_power,
elem_id=el_ids.mask_blend_power)
scale = \
gr.Slider(label=ui_labels.mask_blend_scale,
info=ui_info.mask_blend_scale,
minimum=0,
maximum=8,
step=0.05,
value=default.mask_blend_scale,
elem_id=el_ids.mask_blend_scale)
detail = \
gr.Slider(label=ui_labels.inpaint_detail_preservation,
info=ui_info.inpaint_detail_preservation,
minimum=1,
maximum=32,
step=0.5,
value=default.inpaint_detail_preservation,
elem_id=el_ids.inpaint_detail_preservation)
gr.Markdown(
"""
### Pixel Composite Settings
""")
mask_inf = \
gr.Slider(label=ui_labels.composite_mask_influence,
info=ui_info.composite_mask_influence,
minimum=0,
maximum=1,
step=0.05,
value=default.composite_mask_influence,
elem_id=el_ids.composite_mask_influence)
dif_thresh = \
gr.Slider(label=ui_labels.composite_difference_threshold,
info=ui_info.composite_difference_threshold,
minimum=0,
maximum=8,
step=0.25,
value=default.composite_difference_threshold,
elem_id=el_ids.composite_difference_threshold)
dif_contr = \
gr.Slider(label=ui_labels.composite_difference_contrast,
info=ui_info.composite_difference_contrast,
minimum=0,
maximum=8,
step=0.25,
value=default.composite_difference_contrast,
elem_id=el_ids.composite_difference_contrast)
with gr.Accordion("Help", open=False):
gr.Markdown(
f"""
### {ui_labels.mask_blend_power}
The blending strength of original content is scaled proportionally with the decreasing noise level values at each step (sigmas).
This ensures that the influence of the denoiser and original content preservation is roughly balanced at each step.
This balance can be shifted using this parameter, controlling whether earlier or later steps have stronger preservation.
- **Below 1**: Stronger preservation near the end (with low sigma)
- **1**: Balanced (proportional to sigma)
- **Above 1**: Stronger preservation in the beginning (with high sigma)
""")
gr.Markdown(
f"""
### {ui_labels.mask_blend_scale}
Skews whether partially masked image regions should be more likely to preserve the original content or favor inpainted content.
This may need to be adjusted depending on the {ui_labels.mask_blend_power}, CFG Scale, prompt and Denoising strength.
- **Low values**: Favors generated content.
- **High values**: Favors original content.
""")
gr.Markdown(
f"""
### {ui_labels.inpaint_detail_preservation}
This parameter controls how the original latent vectors and denoised latent vectors are interpolated.
With higher values, the magnitude of the resulting blended vector will be closer to the maximum of the two interpolated vectors.
This can prevent the loss of contrast that occurs with linear interpolation.
- **Low values**: Softer blending, details may fade.
- **High values**: Stronger contrast, may over-saturate colors.
""")
gr.Markdown(
"""
## Pixel Composite Settings
Masks are generated based on how much a part of the image changed after denoising.
These masks are used to blend the original and final images together.
If the difference is low, the original pixels are used instead of the pixels returned by the inpainting process.
""")
gr.Markdown(
f"""
### {ui_labels.composite_mask_influence}
This parameter controls how much the mask should bias this sensitivity to difference.
- **0**: Ignore the mask, only consider differences in image content.
- **1**: Follow the mask closely despite image content changes.
""")
gr.Markdown(
f"""
### {ui_labels.composite_difference_threshold}
This value represents the difference at which the original pixels will have less than 50% opacity.
- **Low values**: Two images patches must be almost the same in order to retain original pixels.
- **High values**: Two images patches can be very different and still retain original pixels.
""")
gr.Markdown(
f"""
### {ui_labels.composite_difference_contrast}
This value represents the contrast between the opacity of the original and inpainted content.
- **Low values**: The blend will be more gradual and have longer transitions, but may cause ghosting.
- **High values**: Ghosting will be less common, but transitions may be very sudden.
""")
self.infotext_fields = [(soft_inpainting_enabled, enabled_gen_param_label),
(power, gen_param_labels.mask_blend_power),
(scale, gen_param_labels.mask_blend_scale),
(detail, gen_param_labels.inpaint_detail_preservation),
(mask_inf, gen_param_labels.composite_mask_influence),
(dif_thresh, gen_param_labels.composite_difference_threshold),
(dif_contr, gen_param_labels.composite_difference_contrast)]
self.paste_field_names = []
for _, field_name in self.infotext_fields:
self.paste_field_names.append(field_name)
return [soft_inpainting_enabled,
power,
scale,
detail,
mask_inf,
dif_thresh,
dif_contr]
def process(self, p, enabled, power, scale, detail_preservation, mask_inf, dif_thresh, dif_contr):
if not enabled:
return
if not processing_uses_inpainting(p):
return
# Shut off the rounding it normally does.
p.mask_round = False
settings = SoftInpaintingSettings(power, scale, detail_preservation, mask_inf, dif_thresh, dif_contr)
# p.extra_generation_params["Mask rounding"] = False
settings.add_generation_params(p.extra_generation_params)
def on_mask_blend(self, p, mba: scripts.MaskBlendArgs, enabled, power, scale, detail_preservation, mask_inf,
dif_thresh, dif_contr):
if not enabled:
return
if not processing_uses_inpainting(p):
return
if mba.is_final_blend:
mba.blended_latent = mba.current_latent
return
settings = SoftInpaintingSettings(power, scale, detail_preservation, mask_inf, dif_thresh, dif_contr)
# todo: Why is sigma 2D? Both values are the same.
mba.blended_latent = latent_blend(settings,
mba.init_latent,
mba.current_latent,
get_modified_nmask(settings, mba.nmask, mba.sigma[0]))
def post_sample(self, p, ps: scripts.PostSampleArgs, enabled, power, scale, detail_preservation, mask_inf,
dif_thresh, dif_contr):
if not enabled:
return
if not processing_uses_inpainting(p):
return
nmask = getattr(p, "nmask", None)
if nmask is None:
return
from modules import images
from modules.shared import opts
settings = SoftInpaintingSettings(power, scale, detail_preservation, mask_inf, dif_thresh, dif_contr)
# since the original code puts holes in the existing overlay images,
# we have to rebuild them.
self.overlay_images = []
for img in p.init_images:
image = images.flatten(img, opts.img2img_background_color)
if p.paste_to is None and p.resize_mode != 3:
image = images.resize_image(p.resize_mode, image, p.width, p.height)
self.overlay_images.append(image.convert('RGBA'))
if len(p.init_images) == 1:
self.overlay_images = self.overlay_images * p.batch_size
if getattr(ps.samples, 'already_decoded', False):
self.masks_for_overlay = apply_masks(settings=settings,
nmask=nmask,
overlay_images=self.overlay_images,
width=p.width,
height=p.height,
paste_to=p.paste_to)
else:
self.masks_for_overlay = apply_adaptive_masks(settings=settings,
nmask=nmask,
latent_orig=p.init_latent,
latent_processed=ps.samples,
overlay_images=self.overlay_images,
width=p.width,
height=p.height,
paste_to=p.paste_to)
def postprocess_maskoverlay(self, p, ppmo: scripts.PostProcessMaskOverlayArgs, enabled, power, scale,
detail_preservation, mask_inf, dif_thresh, dif_contr):
if not enabled:
return
if not processing_uses_inpainting(p):
return
if self.masks_for_overlay is None:
return
if self.overlay_images is None:
return
ppmo.mask_for_overlay = self.masks_for_overlay[ppmo.index]
ppmo.overlay_image = self.overlay_images[ppmo.index]