| --- |
| license: mit |
| pretty_name: P3M-10K |
| task_categories: |
| - image-segmentation |
| tags: |
| - image-matting |
| - portrait-matting |
| - alpha-matte |
| size_categories: |
| - 10K<n<100K |
| configs: |
| - config_name: default |
| data_files: |
| - split: train |
| path: data/train-* |
| - split: P3M_500_P |
| path: data/P3M_500_P-* |
| - split: P3M_500_NP |
| path: data/P3M_500_NP-* |
| --- |
| |
| # P3M-10K |
|
|
| **P3M-10K** (Privacy-Preserving Portrait Matting) is a large-scale portrait matting |
| benchmark. It is redistributed here from the original release by |
| [JizhiziLi/P3M](https://github.com/JizhiziLi/P3M). |
|
|
| If you use this dataset, please cite the original paper: |
|
|
| > Jizhizi Li, Sihan Ma, Xin Zhang, Dacheng Tao. |
| > **"Privacy-Preserving Portrait Matting."** *ACM International Conference on |
| > Multimedia (ACM MM), 2021.* |
|
|
| ## Contents |
|
|
| Each example is a portrait RGB image and its corresponding **alpha matte**: |
|
|
| | Column | Type | Description | |
| |---------|---------|------------------------------------------| |
| | `image` | `Image` | RGB portrait image | |
| | `mask` | `Image` | Alpha matte (soft foreground opacity) | |
|
|
| Note: `mask` is the **alpha matte**, not a binary segmentation map. |
|
|
| ## Splits |
|
|
| | Split | Rows | Image source | Description | |
| |--------------|------|-------------------------|--------------------------------------------------------| |
| | `train` | 9421 | `blurred_image` (privacy) | Training set with face-blurred portraits | |
| | `P3M_500_P` | 500 | `blurred_image` (privacy) | Validation set, **P**rivacy (face-blurred) portraits | |
| | `P3M_500_NP` | 500 | `original_image` | Validation set, **N**on-**P**rivacy (unblurred) portraits | |
|
|
| The schema is **identical across all three splits** (`image` + `mask`). |
|
|
| ## Dropped columns |
|
|
| The original release also ships `fg/` (foreground) and `bg/` (background) for the |
| training set, and `trimap/` for the validation sets. These were **dropped** to keep |
| a clean, consistent two-column schema (`image`, `mask`) across all splits. |
|
|
| ## License |
|
|
| Released under the **MIT License**, matching the original |
| [P3M-10K Dataset Release Agreement (MIT License)](https://github.com/JizhiziLi/P3M). |
| Please review and abide by the original agreement. |
|
|
