包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,经典的灰度共生矩阵纹理计算方法，包括随机梯度算法，相对梯度算法。- Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, Classic GLCM texture calculation method, Including stochastic gradient algorithm, the relative gradient algorithm.