AIM-500

AIM-500 is the first natural image matting test set, contains 500 high-resolution real-world natural images from three types of images (salient opaque foregrounds, salient transparent/meticulous foregrounds, non-salient foregrounds), and multiple categories. The amount of each category is shown in the following table.

| Portrait | Animal | Transparent | Plant | Furniture | Toy | Fruit | | :----:| :----: | :----: | :----: | :----: | :----: | :----: | | 100 | 200 | 34 | 75 | 45 | 36 | 10 |