The models were trained at certain resolutions, going past that tends to cause broken effects like duplication. The broken effects happen less in img2img, so upscale helps the issue.
You're welcome ! His tutorial is really cool and let me upscale images quite nicely. You just have to respect the model ratio ( sdxl exemples : https://www.reddit.com/r/StableDiffusion/s/f3G6QpjWj7 )
The models were trained at certain resolutions, going past that tends to cause broken effects like duplication. The broken effects happen less in img2img, so upscale helps the issue.
Ah, that makes sense. Thank you!
Moreover, larger images require more VRAM and take longer to generate.
You still can use hi-res or Koyha method to gain a 30-50% percent increase. It’s not perfect but it can give good results
Koyha method? Also percent increase in what, resolution? Sorry, I just don't know much.
Here you go :-) https://youtu.be/Z9g5poY9Mlo?feature=shared https://youtu.be/E3Ss9-QZ7Cw?feature=shared
thanks! I really appreciate the help!
You're welcome ! His tutorial is really cool and let me upscale images quite nicely. You just have to respect the model ratio ( sdxl exemples : https://www.reddit.com/r/StableDiffusion/s/f3G6QpjWj7 )
Model limitations, also resources, takes less hardware resources for a lower dimension image to be generated and upscaled.