Image Information Hiding And Detection Technology

Information hiding has been proposed as a new solution to the problem of covert communication, and digital images, one of the best secret carriers for communication, are widely used on the Internet, so the research of information hiding based on digital images is very important.This thesis is summarized as follows:1. At first, we have researched the information hiding scenario of a Simmon's "prisoners" problem, and extended the rules in different modules of the model. Then based on information thesis and color space, we discuss the max capacity of the image carriers. Finally we discuss the security of information hiding system.2. In terms of different image formats, we research two analysis methods, and after reviewing the host signal selected methods in space and DCT domain of images, we illuminated the inconsistency between covert and robustness.3. We discuss the important targets of steganography, and analyze the currently researching level. Then we discuss three different algorithms, and analyze some tools related the algorithms.4. We summarize the currently researching level of steganalysis. Then we research and improve several typical steganalysis algorithms. After examining and analyzing, some important results and parameters are drawn and the interval estimation is also discussed in details.