Journal of Applied Sciences ›› 2019, Vol. 37 ›› Issue (1): 41-50.doi: 10.3969/j.issn.0255-8297.2019.01.005

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Steganalysis of JPEG Images Based on Reducing Between-Class Scatter

WANG Ran1,2, NIU Shao-zhang2, PING Xi-jian1, ZHANG Tao1, SANG Xiao-dan3   

  1. 1. Institute of Information System and Engineering, Information Engineering University, Zhengzhou 450001, China;
    2. School of Computer Science & Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    3. Troops 31401 PLA, Jinan 250002, China
  • Received:2017-09-24 Revised:2018-04-10 Online:2019-01-31 Published:2019-01-31

Abstract:

Compared with the process of embedding, image contents make a more significant impact on the differences of image statistical characteristics. This makes the image steganalysis to be a classification problem with bigger within-class scatter distances and smaller between-class scatter distances. In this paper, a new steganalysis framework which can reduce the differences of image statistical characteristics caused by various content and processing methods is proposed. The given images are classified according to the texture complexity. Steganalysis features are separately extracted from each subset with the same or close complexity evaluation function to build a classifier. The theoretical analysis and experimental results can demonstrate the validity of the proposed framework.

Key words: steganalysis, between-class scatter, image classification, image content complexity

CLC Number: