中文说明：DCT变换的matlab源代码。适合用作特征提取的预处理方法来使用。
English Description：
DCT transform matlab source code. It is suitable to be used as a preprocessing method for feature extraction.
Realization of DCT transformation with matlab code
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中文说明：DCT变换的matlab源代码。适合用作特征提取的预处理方法来使用。
English Description：
DCT transform matlab source code. It is suitable to be used as a preprocessing method for feature extraction.