This is an implementation of the latent diffusion superresolution upscaler found in this notebook:

https://colab.research.google.com/drive/1xqzUi2iXQXDqXBHQGP9Mqt2YrYW6cx-J?usp=sharing#scrollTo=aCoHC2jbq_Ka

Results from testing so far show it to be very good with textures and fine details on generated images, but poor on real-world jobs.

@misc{rombach2021highresolution,
      title={High-Resolution Image Synthesis with Latent Diffusion Models}, 
      author={Robin Rombach and Andreas Blattmann and Dominik Lorenz and Patrick Esser and Björn Ommer},
      year={2021},
      eprint={2112.10752},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}