利用MATLAB软件完成基于离散余弦变换（DCT）的可见水印算法，实现可见水印的嵌入-discussed the mathematical manipulation method of visible digital watermark and realized the visible digital watermarking inserting by completing the watermark algorithm，which based discrete cosine transform

A DWT Domain Visible Watermarking Techniques for Digital Images

The increasing amount of applications using digital multimedia technologies has accentuated the need to provide copyright protection to multimedia data. Digital watermarking is a method that has received a lot of attention in the past few years. A di