Adaptive Color Image Blind Multi-watermark Algorithm Based on DCT
Xie Bi · Video Engineering · 2014
An adaptive multi-color image blind watermarking algorithm is proposed based on discrete cosine transform for some shortcomings of the existing image watermarking algorithms. According to the color vector image content features,after pretreatment of the type of binary image watermark is adaptively embedded into the green component of the discrete cosine transform low-frequency coefficient and intermediate frequency coefficients. the type of watermark embedding and blind extraction of the color vector image are implemented. The experimental results show that the algorithm under the promise of not aware can resist all kinds of conventional attack better,and it has a good robustness.