Comparison of secure and high capacitycolor image steganography techniques in RGB and YCBCR domains

Hemalatha, S and Acharya, Dinesh U and Renuka, A (2013) Comparison of secure and high capacitycolor image steganography techniques in RGB and YCBCR domains. International Journal of Advanced Information Technology, 3 (3). pp. 1-9. ISSN 2231-1548

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Abstract

Steganography is one of the methods used for secret communication. Steganography attempts to hide the existence of the information. The object used to hide the secret information is called as cover object. Images are the most popular cover objects used for steganography. Different techniques have to be used for color image steganography and grey scale image steganography since they are stored in different ways. Color image are normally stored with 24 bit depth and grey scale images are stored with 8 bit depth. Color images can hold large amount of secret information since they have three color components. Different color spaces namely RGB (Red Green Blue), HSV (Hue, Saturation, Value), YUV, YIQ, YCbCr (Luminance, hrominance) etc. are used to represent color images. Color image steganography can be done in any color space domain. In this paper color image steganography in RGB and YCbCr domain are compared. The secret information considered is grey scale image. Since RGB is the common method of representation, hiding secret information in this format is not secure.

Item Type: Article
Uncontrolled Keywords: Steganography, Integer Wavelet Transform (IWT), MSE, PSNR, RGB, YCbCr, Luminance, Chrominance
Subjects: Engineering > MIT Manipal > Computer Science and Engineering
Depositing User: MIT Library
Date Deposited: 05 Sep 2013 06:41
Last Modified: 05 Sep 2013 06:41
URI: http://eprints.manipal.edu/id/eprint/136836

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