DCT1.m为一维离散余弦变换exp22.m为对一幅灰度图像进行离散余弦变换
exp23.m为对一幅彩色图像进行离散余弦变换-DCT1.m for the one-dimensional discrete cosine transform exp22.m for a gray image exp23.m discrete cosine transform for the color of an image discrete cosine transform
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