{"url":"/dataset/distinctions-646","name":"Distinctions-646","full_name":null,"description_markdown":"Dinstinctions-646 are composed of 646 foreground images with manually annotated alpha mattes","description_withheld":null,"homepage":"https://github.com/yuhaoliu7456/CVPR2020-HAttMatting","introduced_date":"2020-06-01","introduced_date_note":null,"introduced_by":{"paper":"/paper/attention-guided-hierarchical-structure","title":"Attention-Guided Hierarchical Structure Aggregation for Image Matting","first_author":"Yu Qiao","url":null},"license":null,"modalities":[],"tasks":[{"name":"Image Matting","url":"/task/image-matting","datasets_with_task":"/datasets/task/image-matting"}],"languages":[],"variants":["Distinctions-646"],"data_loaders":[],"num_papers_in_archive":19,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/image-matting-on-distinctions-646","task":"Image Matting","dataset_variant":"Distinctions-646","rows":4,"metrics":["SAD","MSE","Grad","Conn","Trimap"],"first_row_in_archive_order":{"model":"DiffMatte","paper":"/paper/diffusion-for-natural-image-matting","metrics":{"Conn":"13.29","Grad":"7.20","MSE":"0.0015","SAD":"15.50","Trimap":"√"},"code_links":[{"title":"yihanhu-2022/diffmatte","url":"https://github.com/yihanhu-2022/diffmatte"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/dual-context-aggregation-for-universal-image","title":"Dual-Context Aggregation for Universal Image Matting","date":"2024-02-28","rows_on_this_dataset":1,"code_links":1,"syntology":null},{"paper":"/paper/diffusion-for-natural-image-matting","title":"Diffusion for Natural Image Matting","date":"2023-12-10","rows_on_this_dataset":1,"code_links":1,"syntology":{"read_at":"2026-09-24T18:15:14+00:00","samples_harvested":7,"samples_ran":6,"samples_unverified":1,"pointer_only_for_licence":7,"claim":"Per-sample execution on synthesized fixtures; not a correctness claim."}},{"paper":"/paper/vitmatte-boosting-image-matting-with","title":"ViTMatte: Boosting Image Matting with Pretrained Plain Vision Transformers","date":"2023-05-24","rows_on_this_dataset":1,"code_links":9,"syntology":null},{"paper":"/paper/pp-matting-high-accuracy-natural-image","title":"PP-Matting: High-Accuracy Natural Image Matting","date":"2022-04-20","rows_on_this_dataset":1,"code_links":1,"syntology":null}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":1,"samples_harvested":7,"samples_ran":6,"samples_unverified":1,"pointer_only_for_licence":7,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}