期刊名称：International Journal of Computer Science and Security (IJCSS)
电子版ISSN：1985-1553
出版年度：2015
卷号：9
期号：2
页码：96-107
出版社：Computer Science Journals
摘要：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.
关键词：Image Steganography; Pixel Value Difference (PVD); Peak signal-to-Noise Ratio (PSNR); Mean Square Error (MSE).
