A watermarking scheme based on the discrete cosine transform (DCT) was studied.A new blind watermarking algorithm by embedding the watermark into the phase components of DCT was proposed.

• 摘要基于离散余弦变换(DCT)方法对水印算法进行了研究，提出一种新的将水印嵌入到分块DCT相位成分的盲水印算法。