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2-D_DCT
- 实现对灰度图进行分块儿,并对每一块进行DCT变换,得到每一个DCT系数的变化范围,然后重建灰度图。-This program is aimmed to devided the gray-scale image into many blocks,then do DCT to each block and get the DCT coefficients.Then reconstruct the gray-scale image using the inverse DCT.