Block structure chi-(p,q) steganalysis method

Abstract

In this paper we propose a new approach using a parametric chi-(p,q) statistical decision stego detection technique. The new approach can detect both randomly and sequentially embedded sensitive data. Computer simulations have shown that the presented algorithm has the following advantages: 1) Ability to localize concentrations of hidden information; 2) Ability to perform detection faster than existing methods; 3) Ability to detect images using an adjustable block structure method that takes into account the correlation between adjacent blocks. Comparison with common existing steganalysis methods will also be presented.