Chaos Based Spatial Domain Robust Image Watermarking Scheme

The choice of watermark and embedding scheme can produce highly imperceptible and robust watermarking scheme for copyright protection. Therefore, a symmetric image-watermarking scheme is presented in this paper. The nonlinear watermark is generated using chaos that further improved under proposed optimization assumptions. The two least significant bits (LSBs) of host image are chosen for watermark embedding. Multiple copies of chaotic watermark is scattered into different blocks of the plain image. The proposed work is compared with recently published related work. The results show that proposed method achieves near optimal values of watermarked image analysis. Further, good imperceptibility and strong robustness against various image processing attacks.