J4 ›› 2015, Vol. 42 ›› Issue (4): 153-158.doi: 10.3969/j.issn.1001-2400.2015.04.025

• Original Articles • Previous Articles     Next Articles

Assorted benchmarking for steganography  based on blind steganalyzer accuracy fitting

XIA Bingbing;ZHAO Xianfeng;ZHANG Hong   

  1. (State Key Lab. of Information Security, Institute of Engineering, CAS, Beijing  100093, China)
  • Received:2014-03-21 Online:2015-08-20 Published:2015-10-12
  • Contact: XIA Bingbing E-mail:xiabingbing@iie.ac.cn

Abstract:

KL divergence gives a precise estimation of the difference between cover and stego mediums, but the high computational complexity makes it impropriate for steganography benchmarking. The existing benchmarking methods use other statistics to evaluate the divergence between cover and stego features, but the performance is relatively poor. To solve this problem, we propose an assorted benchmarking for steganography based on blind steganalyzer accuracy fitting. The two complementary basic statistics, i.e., the mean value of single dimensional mutual information and the maximum mean discrepancy, are combined to obtain a better estimate of the divergence between cover and stego features.

Key words: steganography benchmarking, mutual information, maximum mean discrepancy, regression analysis