Adaptive color blind watermarking algorithm based on complex encrypting and DCT transform
Chunli Liu · Journal of Shandong University · 2012
A kind of complex encrypting adaptive color blind watermarking algorithm was proposed based on timedomain and frequencydomain(integer wavelets domaion).Pixel value was displaced by logistic chaotic mapping and Chebychev chaotic mapping to creat the complex chaotic sequence.Pixel position was scrambled by Arnold transform.The watermarking embedding intensity factor was counted by the DCT coefficient.A color watermarking embedding and blind extracting algorithm was designed.Algorithm experiments were produced by Matlab7.Experimental results showed that the algorithm had good transparency and strong robustness on the common watermarking attack.