Detecting location of hidden messages on digital images using RS steganalysis method

Steganography is a branch of methods that deal with hiding information in cover media. The result of the hiding process should resist detection by any means. To detect the hidden information, several analysis methods have been developed (named as steganalysis methods). Steganalysis of Regular and Singular Groups (RS) is a method which aims to detect hidden information on digital images. This method is helpful for estimating length of the hidden message but it does not find over which section of the image the hidden message is. The aim of this thesis is to locate in which part(s) of the image the message is hidden by utilizing this steganalysis method and quadtree data structure.