Providing an Image Watermarking Scheme Based on Chaotic Sequence and Cosine Transform, to Strengthen Interaction with a Variety of Software Attacks
Subject Areas : B. Computer Systems Organization
1 - Department of Computer Engineering and Information Technology, Payame Noor University, IR. Iran
Keywords: Security, robustness, discrete cosines transform (DCT), and watermarking, chaotic sequence,
Abstract :
It's important and necessary to detect and prove the ownership of a digital work in the communication technology era. The purpose of this paper is to propose a digital watermarking scheme for images. In this scheme, first, a watermark signal is produced by a chaotic sequence. Then the watermark is placed in the cosine transform coefficients of a host image. Next, the watermarked image is exposed to some attacks such as filtering, compression, rotation and addition of noise. The simulation results show the ability of the proposed method in maintaining the watermark after conducting these attacks. In the following, in addition to comparing the propose method with other similar methods, the superiority of this scheme over other methods will be remarkable and confirm able. In the following, in addition to comparing the propose method with other similar methods, the superiority of this scheme over other methods will be remarkable and confirm able.