Coyote-A/ultimate-upscale-for-automatic1111
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Ultimate SD upscaler for automatic1111 web-ui

Now you have the opportunity to use a large denoise (0.3-0.5) and not spawn many artifacts. Works on any video card, since you can use a 512x512 tile size and the image will converge.

How to install

  1. Go to "Extensions" tab
  2. Select "Install from URL"
  3. Put https://github.com/Coyote-A/ultimate-upscale-for-automatic1111 into "URL for extension's git repository" field
  4. On "Installed" tab click "Apply and restart UI"
  5. ???
  6. Profit

How to use

Send image to img2img, in "Script" field select "Ultimate SD upscale". The width and height of the future image is selected through the default slider.

UI

Enable redraw if it disabled. Select tile size, change padding and mask blur.

Select upscaler. If you don't want to use the upscaler it's ok, but the image will be blurry.

If a tile grid is visible on your image, then you can run the image through "Tile grid fix". Just send it to img2img, enable them and disable redraw. Set upscaler to None.

Some recommendations

For 4k image use:

  • Tile size: 768
  • Mask blur: 20
  • Padding: 55

For 2k image you can use (you can try it on 4k, but result have many mutations):

  • Tile size: 512
  • Mask blur: 16
  • Padding: 32

Or the same settings as for 4k

Recommended upscaler: R-ESRGAN 4x+

There are 2 types of seam fix: half tile offset pass and bands pass

Do not use seam fixes if image haven't visible grid, it's just another redraw passes.

Half tile offset pass

It adds 2 passes like redraw pass, but with a half-tile offset. One pass for rows with vertical gradient mask and one pass for columns with horizontal gradient mask.

This pass covers bigger area than bands and mostly produces better result, but require more time.

Bands pass

It adds passes on just seams (rows and columns) and covers small area around them (width in ui). It requires less time than offset pass.

How to enable 4096 img width and height

  1. Go to sd-webui folder
  2. Find ui-config.json
  3. Change all 2048 to 4096

Examples

Original image

Original

2k upscaled. Tile size: 512, Padding: 32, Mask blur: 16, Denoise: 0.4 2k upscale

Original image

Original

2k upscaled. Tile size: 768, Padding: 55, Mask blur: 20, Denoise: 0.35 2k upscale

4k upscaled. Tile size: 768, Padding: 55, Mask blur: 20, Denoise: 0.35 4k upscale

Original image

Original

4k upscaled. Tile size: 768, Padding: 55, Mask blur: 20, Denoise: 0.4 4k upscale