Topaz Photo AI integration

This extension integrates Topaz Photo AI upscaling feature into stable-diffusion-webui. So you can use it inside hires fix, upscaler_for_img2img or in extras tab. You need to have Topaz Photo AI of version >= 2.1.3 (do not confuse with topaz gigapixel), and provide a path to tpai.exe usually located in C:\Program Files\Topaz Labs LLC\Topaz Photo AI in --topaz-photo-ai-exe cmd flag of webui

Also there are Sharpe and Denoise features in extras tab

To copy path to file in Windows, you need to press right mouse click holding "Shift" button (or not, depends on OS version), and select "Copy file as path"

For Linux

If you use Linux, you need to write a script, which launches tpai.exe via wine, with all arguments passing. E.g.

#!/bin/bash
cd "$(dirname "$0")"
export WINEDEBUG=-all
export DXVK_LOG_LEVEL=warn
wine <path to tpai.exe> "$@"
rc=$?
exit $rc

You can install winetricks and run winetricks -q dxvk to allow topaz to see your gpu. But it won't work because dxvk doesn't support directx12 (directml) which is required. Vkd3d in winesticks does support it partially, gpu is utilized, but the image is blured and glitched, so it isn't a proper directml support

For portable version

If you use a portable version of Topaz Photo AI, you need to write a wrapper script which replaces Topaz Photo AI.exe with tpai.exe and starts portable version, and set path to this script instead

For Linux:

#!/bin/bash
cd "$(dirname "$0")"
export WINEDEBUG=-all
export DXVK_LOG_LEVEL=warn
if [ ! -f 'App/Topaz Photo AI/Topaz Photo AI_.exe' ]; then
    mv 'App/Topaz Photo AI/Topaz Photo AI.exe' 'App/Topaz Photo AI/Topaz Photo AI_.exe'
    mv 'App/Topaz Photo AI/tpai.exe' 'App/Topaz Photo AI/Topaz Photo AI.exe'
fi
xvfb-run wine PhotoAIportable.exe "$@"
rc=$?
if [ ! -f 'App/Topaz Photo AI/tpai.exe' ]; then
    mv 'App/Topaz Photo AI/Topaz Photo AI.exe' 'App/Topaz Photo AI/tpai.exe'
    mv 'App/Topaz Photo AI/Topaz Photo AI_.exe' 'App/Topaz Photo AI/Topaz Photo AI.exe'
fi
exit $rc

xvfb-run is not necessary, it's used for hiding cmd.exe window. Can be installed by sudo yay -S xorg-server-xvfb on Arch-based, or sudo apt install xvfb on Ubuntu-based

For Windows a similar script will work but bad with admin right request and cmd window every time. So don't use portable version in Windows

Just in case, this extension is more about fun, and adding topaz in webui just because it's possibe. If you want to get free models with similar quality, you can use 4x-Nomos8kHAT-L-otf and 4x-FaceUpDAT, place them into models/DAT directory, or even you can try StableSR

Btw in some cases Topaz shows the best quality among dedicated upscaling models. And it's significantly faster even on cpu if you need only 2x upscale of a big image

but StableSR is still better

And the fastest in pair with turbo model