The Watermarking System Preventing Forgery Based on Image's Characteristic Region

Digital watermarking prevent forgery technique is the important way to protect copyrights.The techˉnique based on the image′s characteristic region is used overday the interested image with watermarking sigˉnal.Firstly it chooses the characteristic object by the curve track way.Secondly,as a result of the most impresˉsion on image′s lighteness change in eyes,it swings in the image′s lighteness information with watermarking by blind watermarking method.The system can pick up watermarking without original carrier image,so it not only has actural digital watermarking system′s merit,but also possesses higher counteracting cut out,counteracting circumvolve attack,etc.