Update README.md

README.md

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 ---
 license: mit
+task_categories:
+- image-classification
+- image-to-image
+- text-to-image
+language:
+- en
+- ja
+pretty_name: danbooru2023
+size_categories:
+- 1M<n<10M
 ---
+
+# Yandere2023: A Large-Scale Crowdsourced and Tagged Anime Illustration Dataset
+
+<!-- Provide a quick summary of the dataset. -->
+
+Yandere2023 is a large-scale anime image dataset with over 5 million images contributed and annotated in detail by an enthusiast community. Image tags cover aspects like characters, scenes, copyrights, artists, etc with an average of 30 tags per image.
+
+Yandere is a veteran anime image board with high-quality images and extensive tag metadata. The dataset can be used to train image classification, multi-label tagging, character detection, generative models, and other computer vision tasks.
+
+- **Shared by:** Nyanko Devs
+- **Language(s):** English, Japanese
+- **License:** MIT
+
+## Uses
+
+## Format
+
+The goal of the dataset is to be as easy as possible to use immediately, avoiding obscure file formats, while allowing simultaneous research & seeding of the torrent, with easy updates.
+
+Images are provided in the full original form (be that JPG, PNG, GIF or otherwise) for reference/archival purposes, and bucketed into 1000 subdirectories 0000–0999 (0-padded), which is the Danbooru ID modulo 1000 (ie. all images in 0999/ have an ID ending in ‘999’); IDs can be turned into paths by dividing & padding (eg. in Bash, BUCKET=$(printf "%04d" $(( ID % 1000 )) )) and then the file is at {original,512px}/$BUCKET/$ID.$EXT. 
+
+The reason for the bucketing is that a single directory would cause pathological filesystem performance, and modulo ID is a simple hash which spreads images evenly without requiring additional future directories to be made or a filesystem IO to check where the file is. The ID is not zero-padded and files end in the relevant extension, hence the file layout looks like this:
+
+```bash
+$ tree / | less
+
+/
+├── yandere2023 -> /mnt/diffusionstorage/workspace/yandere/
+│   ├── metadata
+│   ├── readme.md
+│   ├── original
+│   │   ├── 0000 -> data-0000.tar
+│   │   ├── 0001 -> data-0001.tar
+│   │   │   ├── 10001.jpg
+│   │   │   ├── 210001.png
+│   │   │   ├── 3120001.webp
+│   │   │   ├── 6513001.jpg
+
+```
+          
+Currently represented file extensions are: avi/bmp/gif/html/jpeg/jpg/mp3/mp4/mpg/pdf/png/rar/swf/webm/wmv/zip. 
+
+Raw original files are treacherous. Be careful if working with the original dataset. There are many odd files: truncated, non-sRGB colorspace, wrong file extensions (eg. some PNGs have .jpg extensions like original/0146/1525146.jpg or original/0558/1422558.jpg), etc.