中文说明：根据图像四个方向的共发矩阵，求取四个灰度共发矩阵的熵，求熵的均值生成特征矩阵，通过聚类分析实现图像的纹理分割。
English Description：
According to the co occurrence matrix of the four directions of the image, the entropy of the four gray co occurrence matrices is calculated, and the mean value of the entropy is calculated to generate the feature matrix. The image texture segmentation is realized by clustering analysis.