| In the annotation files, each pixel value corresponds to a tissue category, and the corresponding relationship is as follows: | |
| (139, 0, 0) : Well-differentiated adenocarcinoma (tub1) | |
| (255, 0, 255) : Moderately differentiated adenocarcinoma (tub2) | |
| (128, 0, 128) : Papillary adenocarcinoma (pap) | |
| (75, 0, 130) : Other tumors | |
| (138, 43, 226) : Normal Gland | |
| (0, 0, 255) : Chronic Gastritis | |
| (70, 130, 180) : Chronic atrophic gastritis | |
| (0, 255, 0) : lymphoid follicles | |
| (0, 128, 0) : Complete intestinal metaplasia (C-Intestine) | |
| (255, 255, 0) : Incomplete intestinal metaplasia (IC-Intestine) | |