基于DCT变换的水印图像水印算法源代码（matlab实现）。将文件解压缩到到MATLAB安装目录下的work文件夹中，然后打开aaa.m文件，运行即可。 -DCT-based watermark image watermarking algorithm source code (Matlab implementation). Extract the file to the MATLAB installation directory under the work folder, and the