彩色数字水印的程序，实现在彩色图像中通过DCT变换来嵌入水印信息-Color digital watermarking process to achieve the color image by DCT transform to embed watermarks

彩色图像数字水印的实现，采用了JND方法。透明性和鲁棒性好-Color image watermarking realized, using JND methods. Transparency and robustness