已调制信号计算其普相关密度，在MATLAB中求图像纹理特征，一种流形学习算法（很好用），是学习PCA特征提取的很好的学习资料，解耦，恢复原信号，通过反复训练模板能有较高的识别率，外文资料里面的源代码。- Modulated signals to calculate its density Pu-related, In the MATLAB image texture feature, A fluid manifold learning algorithm (good use), Is a good learning materials to learn PCA feature extraction, Decoupling, restore the original signal, Through repeated training UcMfaJllate have higher recognition rate, Foreign materials inside the source code.