中文说明：实现对一幅灰度和彩色图像作的离散余弦变换，选择适当的DCT系数阈值对其进行DCT反变换.
English Description：
The discrete cosine transform of a gray and color image is realized, and the DCT inverse transform is carried out by selecting appropriate DCT coefficient threshold
Discrete cosine transform for a gray and color image
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中文说明：实现对一幅灰度和彩色图像作的离散余弦变换，选择适当的DCT系数阈值对其进行DCT反变换.
English Description：
The discrete cosine transform of a gray and color image is realized, and the DCT inverse transform is carried out by selecting appropriate DCT coefficient thresholdDCT.doc