Security images using watermarking based on Contourlet

In this article we have discussed the applications of image processing.Millions of photos and digital files illegally copied or shared on the Internet,causing huge losses in photo,music and broadcast industry, researches try to find a method to protect copyright.The proposed method using watermarkingwithout cause reduced image quality.Contourlet is the best result in comparison with other methods

کلیدواژه ها:

Imagewatermarking ، Contourl ، ، Security