使用KL变换和主分量分析的人脸识别小程序，使用MATLAB-KL transform and use PCA Face Recognition small, the use of MATLAB

包含几个小程序，包括基音周期提取，生物医学信号压缩：DCT变换，K-L变换等-Contains several procedures, including the pitch period extraction, biomedical signal compression: DCT transform, KL transform