In the annotation files, each pixel value corresponds to a tissue category, and the corresponding relationship is as follows:

#8B0000, (139, 0, 0) : Well-differentiated adenocarcinoma (tub1)
#FF00FF, (255, 0, 255) : Moderately differentiated adenocarcinoma (tub2)
#800080, (128, 0, 128) : Papillary adenocarcinoma (pap)
#4B0082, (75, 0, 130) : Others
#8A2BE2, (138, 43, 226) : Normal Gland
#0000FF, (0, 0, 255) : Chronic Gastritis
#4682B4, (70, 130, 180) : Chronic atrophic gastritis 
#00FF00, (0, 255, 0) : lymphoid follicles
#008000, (0, 128, 0) : Complete intestinal metaplasia (C-Intestine)
#FFFF00, (255, 255, 0) : Incomplete intestinal metaplasia (IC-Intestine)