The Danbooru2019 Figures dataset is a large-scale character anime illustration dataset of n=855,880 images (248GB; minimum width 512px) cropped from Danbooru2019 using the AniSeg anime character detection model.
https://www.gwern.net/Crops#danbooru2019-figures
https://github.com/jerryli27/AniSeg/
Is this how "this waifu doesn't exist" was made?