International Journal of Computer
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Volume 1 | Issue 2 | Year 2011 | Article Id. IJCOT-V1I2P301 | DOI : https://doi.org/10.14445/22492593/IJCOT-V1I2P301

A New Steganography Technique Based on Layers of Image and Sensitivity Vectors A cquiring HVS

Jagvinder Kaur

Citation :

Jagvinder Kaur, "A New Steganography Technique Based on Layers of Image and Sensitivity Vectors A cquiring HVS," International Journal of Computer & Organization Trends (IJCOT), vol. 1, no. 2, pp. 1-6, 2011. Crossref, https://doi.org/10.14445/22492593/IJCOT-V1I2P301

Abstract

Steganography is the art and science of hiding the existence of information . To provide an imperceptible stego - image quality and to improve the capacity of the hidden secret data, a steganography techn ique based on layers of i mage and sensitivity v ectors is proposed in this paper . In this technique , firstly the whole host image is divided into 8x8 blocks and each block is further sub - divided into the 8x8 sub block which is formed by t he binary representation of pixel values of the image. The SVBA algorithm then analyzes the mean value of gray block by block, and sets a sensitivity vector for each block with considering HVS features. It adjusts the embedding of secret message for steganography schema dynamically according to the block sensitivity vectors. The s imulation experiment results on Matlab7.10 show this algorithm has a balanced performance on efficiency, capacity, imperceptibility and robustness.

Keywords

Steganography, Peak Signal - to - Noise Rate (PSNR), Mean Square Error (MSE), Manhattan distance (M dist); HVS features; Block sensitivity vector .

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