size_categories:10K<n<100K format:webdataset modality:image modality:text library:datasets library:webdataset library:mlcroissant region:us WikiArt art image-to-image Stable-Diffusion painting digital-art computer-vision dataset LANCZOS image-processing resized-images 768x768 deep-learning convolutional-neural-networks feature-extraction image-classification machine-learning