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Enhancing Pixel Value Difference (PVD) Image Steganography by Using Mobile Phone Keypad (MPK) Coding
Marwa E. Saleh, Abdelmgeid A. Aly, Fatma A. Omara
Pages - 96 - 107     |    Revised - 31-03-2015     |    Published - 30-04-2015
Volume - 9   Issue - 2    |    Publication Date - March / April 2015  Table of Contents
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KEYWORDS
Image Steganography, Pixel Value Difference (PVD), Peak signal-to-Noise Ratio (PSNR), Mean Square Error (MSE).
ABSTRACT
Information hiding could be done using steganography and watermarking. According to steganography, secret information is embedded in carriers such as image, sound, video in such a way that it couldn't be detected. On the other hand, watermarking is used for copyright preservation. By using images as carriers in steganography, there are many methods have been proposed for image steganography. Pixel Value Differencing (PVD) is one of basic methods of image steganography, in which the difference between pixels are used to hide the secret message. In this paper, a new image steganography enhancement method for the Pixel Value Difference (PVD) method has been proposed. The principle of the proposed method is based on using Mobile Phone Keypad (MPK) Coding technique and Modified Substitute Last Digit In Pixel by using Mobile Phone Keypad (MSLDIP-MPK) method. The main enhancement component of the proposed method is called (PVD-MPK). Due to this enhancement component, Maximum Hiding Capacity (MHC) of the cover image is enlarged, and the stego image quality or Peak Signal-to-Noise Ratio (PSNR) values is enhanced.
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Mr. Marwa E. Saleh
Faculty of Computers and Information, Dept. of Computer Science Minia Universi ty Minia - Egypt
marwa.emadeldeen@gmail.com
Dr. Abdelmgeid A. Aly
Faculty of Science, Dept. of Computer Science Minia University Minia, Egypt - Egypt
Dr. Fatma A. Omara
Faculty of Computers and Information, Dept. of Computer Science Cairo University Cairo, Egypt - Egypt