Self embedding watermarking for digital images depending on edge energy

In digital world, we need to prove the real owner of any important digital image. In this article, we present a novel watermarking technique that depends on separating the three different colors from each other. Then, the edge energy of each separate color is computed. The color that contains the maximum edge energy is chosen to hide the watermark within it. The watermark is a degraded version of the original image which will be protected. The watermark pixels are rearranged depending on certain security key. Furthermore, the original image is divided into many blocks. These blocks are rearranged using another security key to harden the process of detecting the watermark. Each pixel of the degraded version of the image is hidden in certain corresponding block of the image. By this procedure, the watermark is very robust and it can prove the ownership for the real owner regardless the different attacks that it may be happened.