A digital watermarking algorithm,in which the visual-model-weighted DCT coefficients of the watermarking signal are added to DC coefficients and AC coefficients of original image,is proposed in this paper.

• 文章提出了一种在层式余弦变换域中嵌入数字水印的算法,该算法把水印信号的DCT变换域量值叠加到原始图像经层式余弦变换所得到的DC系数和部分AC系数中,这些系数空间容量充足,极其有利于保证水印算法的实现。