Hi- no the images on the demo page are not part of the training set, they are only used to evaluate the method. Arbitrary images of natural scenes will look similar at these bitrates. We‘ll release trained models and a colab soon!
Our training set consists of a large set of high-resolution images collected from theInternet, which we downscale to a random size between 500 and 1000 pixels, and then randomlycrop to256×256. We evaluate on three diverse benchmark datasets collected independently ofour training set to demonstrate that our method generalizes beyond the training distribution: thewidely usedKodak[22] dataset (24 images), as well as theCLIC2020[43] testset (428 images), andDIV2K[2] validation set (100 images).