Image data hiding schemes based on graph coloring

  • Authors:
  • Shuai Yue;Zhi-Hui Wang;Ching-Yun Chang;Chin-Chen Chang;Ming-Chu Li

  • Affiliations:
  • Department of Software, Dalian University of Technology, Dalian, China;Department of Software, Dalian University of Technology, Dalian, China;Computer laboratory,University of Cambridge, Cambridge, UK;Department of Information Engineering and Computer Science, Feng Chia University, Taichung City, Taiwan;Department of Software, Dalian University of Technology, Dalian, China

  • Venue:
  • UIC'11 Proceedings of the 8th international conference on Ubiquitous intelligence and computing
  • Year:
  • 2011

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Abstract

Graph coloring has been applied in a variety of applications, but not for data hiding. Therefore, in this paper, we are proposing two graph coloring-based data hiding schemes that embed secret data in spatial domain of gray scale images. The main idea of our schemes is to use a graph, in which every vertex corresponds to a pixel pair, to hide data by replacing a pair of pixels of one color with a pair of pixels of a different color, with every color corresponding to some bits of the secret message. The performance of the proposed schemes has been evaluated by a joint evaluation of the imperceptibility of the images they produce and their embedding capacity. Also, the validity of the proposed schemes has been proven by comparing them with some other schemes.