Feature Extraction and Classification on Esophageal X-Ray Images of Xinjiang Kazak Nationality

Table 5

Classification performance of previous studies (%).

Methods	Classification accuracy
GH + Bayes [57]	76.6
WT + Bayes [58]	76.5
GH + GLCM + Bayes [59]	86.7
GLCM + GGCM + PCA + KNN [60]	87.5

GH: gray-level histogram; WT: wavelet-based transform; GGCM: gray-gradient co-occurrence matrix.