article

Capacity-Raising Steganography Using Multi-Pixel Differencing and Pixel-Value Shifting Operations

Authors:

Cheng-Hsing Yang,

Shiuh-Jeng Wang,

Chi-Yao WengAuthors Info & Claims

Fundamenta Informaticae, Volume 98, Issue 2-3

Pages 321 - 336

Published: 01 April 2010 Publication History

Abstract

In order to provide large embedding capacity and to minimize distortion for the stego-image, a steganographic method using multi-pixel differencing is presented in this paper. It takes into consideration four pixels of a block, and the differences between the lowest gray-value pixel and its surrounding pixels are used to determine the degree of smoothness and sharpness for embedding the secret data. If the difference values are large in a block, and the block is located in the sharp area then more data can be embedded. On the other hand, if the block is located in the smooth area less data can be embedded. The multi-pixel differencing method is employed in our scheme. We also propose the pixel-value shifting method to increase the image quality. The experimental results show that our scheme has a large embedding capacity without creating a noticeable distortion.

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Cited By

Liao XQin ZDing L(2017)Data embedding in digital images using critical functionsImage Communication10.1016/j.image.2017.07.00658:C(146-156)Online publication date: 1-Oct-2017
https://dl.acm.org/doi/10.1016/j.image.2017.07.006
Liao XWen QZhao ZZhang J(2012)A Novel Steganographic Method with Four-Pixel Differencing and Modulus FunctionFundamenta Informaticae10.5555/2385024.2385029118:3(281-289)Online publication date: 1-Aug-2012
https://dl.acm.org/doi/10.5555/2385024.2385029

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cover image Fundamenta Informaticae

Fundamenta Informaticae Volume 98, Issue 2-3

April 2010

190 pages

ISSN:0169-2968

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IOS Press

Netherlands

Publication History

Published: 01 April 2010

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Cited By

Liao XQin ZDing L(2017)Data embedding in digital images using critical functionsImage Communication10.1016/j.image.2017.07.00658:C(146-156)Online publication date: 1-Oct-2017
https://dl.acm.org/doi/10.1016/j.image.2017.07.006
Liao XWen QZhao ZZhang J(2012)A Novel Steganographic Method with Four-Pixel Differencing and Modulus FunctionFundamenta Informaticae10.5555/2385024.2385029118:3(281-289)Online publication date: 1-Aug-2012
https://dl.acm.org/doi/10.5555/2385024.2385029

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