有PMUSIC 校正前和校正后的比较，是学习PCA特征提取的很好的学习资料，在MATLAB中求图像纹理特征。- A relatively before correction and after correction PMUSIC, Is a good learning materials to learn PCA feature extraction, In the MATLAB image texture feature.

添加噪声处理，在MATLAB中求图像纹理特征，可以提取一幅图中想要的目标。- Add noise processing, In the MATLAB image texture feature, Target can be extracted in a picture you want.