这是一个有关于视频水印的程序，包含yuv格式的读入，提取出每一帧图像，然后对每一帧图像做8*8块DCT变换，然后在中低频修改DCT系数然后恢复图像，重构成yuv格式的视频播放。

Packet : 视频水印自适应.rar filelist
视频水印自适应/readtest.m
视频水印自适应/DCchange.m
视频水印自适应/yuv420torgb.m
视频水印自适应/rgbtoyuv420.m
视频水印自适应

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