StableSR is capable of achieving arbitrary upscaling in theory, below is an 4x example with a result beyond 4K (4096x6144). # DDIM w/ negative prompts python scripts ...
@InProceedings{Liu2021refvae, author = {Zhi-Song Liu, Wan-Chi Siu and Li-Wen Wang}, title = {Reference based Image Super-Resolution via Variational AutoEncoder}, booktitle = {IEEE International ...