Image watermarking using reversible texture synthesis

information technology

Steganography is a process of information hiding technique in host medium. The host medium can be of any host digital media. Thus, steganography provides communication between two parties whose existence is unknown to an attacker. Most image steganographic algorithms adopt an existing image as a cover medium to hide the message and the size of the cover image is fixed, so the more secret messages allow for more image distortion. In this paper, we propose a novel approach for steganography using a reversible texture synthesis. Texture synthesis is the process of sampling the original texture image. A patch represents a piece of source texture in which the secret message can be embedded. Then the patches along with the message are reformed into a single image. Thus, the message is passed in a more secure way and this process is highly efficient and robust against steganalytical attacks.

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