Study of HSV Color Space Deviations and Histograms in Image Steganography

International Journal of Computer Trends and Technology (IJCTT)          
© 2015 by IJCTT Journal
Volume-23 Number-4
Year of Publication : 2015
Authors : Pankaj Sambyal
DOI :  10.14445/22312803/IJCTT-V23P131


Pankaj Sambyal "Study of HSV Color Space Deviations and Histograms in Image Steganography". International Journal of Computer Trends and Technology (IJCTT) V23(4):151-154, May 2015. ISSN:2231-2803. Published by Seventh Sense Research Group.

Abstract -
Image Steganography is the process of hiding a secret image inside a cover image file to produce a fused image called stego image, so that the secret image cannot be recognized or recovered by unauthorized recipients. But in the process of Steganography, the cover image undergoes changes in several image parameters e.g. HSV (Hue-Saturation-Value), color, hue, brightness, saturation, quality, etc. The changes in HSV value depends majorly on the color changes. These changes can considerably distort the cover image to the extent where it may defy the purpose of the whole process which is to conceal information without raising suspicions. The present paper tries to analyze the effect of Steganography process on the cover image and study the various differences between the cover image before and after the process. The various histograms of different image parameters are also discussed. After that, performance is measured in terms of PSNR and mean deviation to study the amount of deterioration caused by Steganography process.

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Steganography, histogram, steganalysis, HSV, HSB, color saturation