## Updates：UIIS10K
[**UIIS10K**](https://huggingface.co/datasets/LiamLian0727/UIIS10K) upgrades the original UIIS dataset with **10 048 underwater images** annotated at **pixel level** for **10 object classes** (fish · reptiles · artiodactyla · mollusks · corals · plants · garbage · ruins · divers · robots).
- **Largest underwater benchmark** – more images and masks than any existing general underwater instance segmentation dataset.
- **Scene diversity** – shallow & deep water, clear & turbid conditions, multiple resolutions, complex backgrounds, heavy occlusions.
- **Crowded scenes** – 23 % of images contain ≥ 5 instances. (up to 80+ per image).
- **Multi-task ready** – pixel masks + bounding boxes support instance segmentation, object detection, and semantic segmentation.
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This dataset is proposed by the ICCV 2023 paper "[WaterMask: Instance Segmentation for Underwater Imagery]"(https://github.com/LiamLian0727/WaterMask), specific parameters about the dataset can be vi…
