Retrospective Study
Copyright ©The Author(s) 2025.
World J Gastroenterol. Jun 7, 2025; 31(21): 107601
Published online Jun 7, 2025. doi: 10.3748/wjg.v31.i21.107601
Table 1 The data distribution for the classification of normal mucosa, erosions/erythema, ulcers, and polyps

Training set
Testing set
Total
Normal mucosa9162281144
Erosions/erythema27268340
Ulcers15137188
Polyps501125626
Total images18404582298