matlab开发数字水印DCT与DWT（基于小波变换的静态图像数字水印方法研究）-development of digital watermarking matlab DCT and DWT (wavelet-based method for watermarking of still images)

基于DCT变换的数字水印设计，通过伪随机数产生高斯噪声并加入图像中，生成新的图像。-DCT-based digital watermark design, pseudo-random number generated by Gaussian noise and add the image to generate a new image.