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Enhancing Embedding Capacity and Security using Reversible Texture Synthesis in Image Steganography


  • School of Computing, SASTRA University, Thanjavur - 613401, Tamil Nadu, India


Objectives: Image steganography embeds a secret data of any form on an image. It hides data into a digital media like image, audio and video. The message existence is made unknown by embedding it in a digital host before transmitting it. Secret communication can be achieved through cryptography and steganography. But steganography has few advantages over cryptography one such major advantage is that the encrypted text is hidden and cannot easily be disclosed. Methods: Steganogrphy technique involves cover object and stego object where Cover-object is the object in which message is embedded and Stego-object is the object that carries the hidden message. Texture synthesis is used in steganography where smaller texture image is resampled into new texture image with similar visual properties. Instead of using a cover image for hiding messages the proposed method involves concealing original texture of the image and embedding the secret messages. Findings: In Reversible texture synthesis the source texture can be recovered which is same as that of the original image therefore it can be reused further. In the proposed system Patch based texture synthesis is employed wherever the textures are synthesized by pasting the patches from original texture. Embedding capability and security will be increased without degrading image quality using Huffman cryptography. Applications: Steganography is mainly used for confidential and secret data sharing, protection against data alteration, control system access for digital distribution of contents, Steganography is also used for media database systems


Huffman Coding, Patch Synthesis, Security, Steganography, Texture Synthesis.

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