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An Improved Data Hiding Method of Five Pixel Pair Differencing and LSB Substitution Hiding Scheme

  • Tzu-Chuen LuEmail author
  • Yu-Ching Lu
Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 63)

Abstract

In 2015, Gulve and Joshi proposed a Five Pixel Pair Differencing and least significant bit (LSB) substitution (FPPD) hiding scheme to improve the pixel-value differencing technique. In their scheme, a cover image is divided into several non-overlapping blocks 2×3 pixels in size. The center pixel in each block is a basic pixel that is used to compute differences between it and the other five pixels. These differences are used to conceal the secret message via the pixel-value differencing hiding method. In their scheme, the embedding capacity is limited by the size of the block. In this paper, we adjust the size of the block to increase the embedding capacity while maintaining the quality of the stego-image. Experimental results show that the embedding capacity of the proposed scheme is higher than that of Gulve and Joshis scheme, especially for a 2×2-sized block.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Information ManagementChaoyang University of TechnologyTaichungTaiwan

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