频率域熵图，两个窗口，熵的径向和角向分布，便于分析纹理，还有一个自己写的gabor变换，请参考。-Frequency domain entropy map, two windows, the entropy of the radial and angular distribution, to facilitate analysis of texture, there is a transform gabor wrote it myself, please refer to.

MPEG-7 feature extraction library for images. Angular Radial Transform Region Shape Descr iptor Contour Shape Descr iptor