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A Novel Steganographic Approach to enhance the Performance of Security System in a Smarter Way

Author(s): Parveen Mor | Tanupriya Choudhury | Vasudha Vashisht

Journal: International Journal of Computer Science and Mobile Computing
ISSN 2320-088X

Volume: 2;
Issue: 6;
Start page: 163;
Date: 2013;
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Keywords: Steganography | TPVD | PVD | Stego image | Stegnalysis

Steganography can be defined as the process of hiding information by embedding messageswithin other; Information can be in the form of text, audio, video. Pixel value differencing (PVD) is asteganography method which embeds secret data in images based on spatial information. And to improve thecapacity of hiding data is increased by using Tripixel Difference Value Method. In which data is hidden in2X2 Square block. Here proposed method improves the security of existing TPVD method by making certainmodification to make it to more robust to histogram quantization. But it reduces certain capacity of originalTPVD algorithm. And the stability of against histogram quantization is significantly improved.
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