Journal of Applied Sciences ›› 2014, Vol. 32 ›› Issue (5): 543-550.doi: 10.3969/j.issn.0255-8297.2014.05.017

• Signal and Information Processing • Previous Articles    

Steganalysis of Heterogeneous Images Using k-Means Clustering

XIE Kai, ZHANG Tao, XI Ling, LI Wen-xiang, PING Xi-jian   

  1. Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou 450001, China
  • Received:2013-10-25 Revised:2014-03-04 Online:2014-09-23 Published:2014-03-04

Abstract: A new image steganalysis method using k-means clustering is presented. In the training phase,
the input images are classified to several classes using k-means clustering according to texture complexity.
The training process is specialized for each class separately. In the testing phase, the given test image is first
classified to the class it belongs to according to its texture complexity. It is then submitted to the corresponding
steganalysis classifier. The proposed method can reduce mismatch penalty considerably. Experimental results
demonstrate that the method can significantly enhance detection accuracy of existing steganalysis methods.

Key words: information hiding, k-means clustering, image texture complexity, image steganalysis

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