Enhancing Security in Steganography using Indexed Texture Synthesis and Color Synthesis

Digital Image Steganography is a techniques of hiding message or information in a digital image such a way that nobody can notice the existence of message. In this paper we using a novel approach for enhancing the security in steganography using Indexed texture synthesis. A texture synthesis process resample’s smaller texture image to obtain a new image with same appearance and arbitrarily size. To conceal the secret message in image we use the texture synthesis in steganography. In contrast of using existing cover image to hide the secret message, our approach hides the source texture and embed the secret message through the process of indexed texture synthesis and color synthesis. This method has advantage over other steganography techniques, it offers the message embedding capacity is proportional to the size of stego image, it is difficult to reveal the secret message by an attacker since we are using dual indexed approach. The Experimental result shows theour approach provides various embedding capacities, provides visually plausible Stego image and extraction of source texture.