Implement txt2imghd as an option

[daouid]

txt2imghd is a port of the GOBIG mode from progrockdiffusion applied to Stable Diffusion, with Real-ESRGAN as the upscaler. It creates detailed, higher-resolution images by first generating an image from a prompt, upscaling it, and then running img2img on smaller pieces of the upscaled image, and blending the result back into the original image.

https://github.com/jquesnelle/txt2imghd

[chekaaa]

I may be wrong but isnt that what "SD upscale" option does in the img2mg tab?

[daouid]

You are right, thanks for pointing it out. It is also mentioned in the showcase page: "Original idea by: https://github.com/jquesnelle/txt2imghd. This is an independent implementation."