Research On Image Steganography Based On New Generation Mobile Intelligent Terminal

With the population of the mobile intelligent terminals, the spread and exchange ofmultimedia digital images have become more and more convenient. And as so, the informationsecurity has been given a great deal of attention. Steganography, as an important branch ofinformation security, has been used widely in many areas since it first appeared in personalcomputers. How to obtain the secure exchange of digital images on mobile intelligent terminalshave been studied a lot in recent years. Taken the characters of mobile intelligent terminals intoconsideration, this research put forward a novel steganography algorithm to improve the currentones used and studied the problems with multimedia messages and its realization.The research mainly covers following sections:1. The research studied the steganography algorithm on mobile intelligent terminals and putforward a new high-capacity steganography algorithm on the basis of pixel value differencing(PVD). To avoid the drawback of traditional image steganography algorithm based on pixel valuedifferencing, which has the limit to improve embedding capacity, a novel improved PVDsteganography algorithm MPVD for digital images has been put forward. The most pixelinterpolation of an image is in low interval while the high pixel interpolation only takes up a smallpart. With these in mind, more secret information can be embedded into texture area. That’s howthe algorithm can improve the volume of steganography.2. To improve the the quality of cover and stego images and the security of steganography, theresearch puts forward a new steganography algorithm MPVD-DE on the basis of improved PVDand diamond encoding. Improved PVD algorithm has a high embedding capacity.Thesteganography algorithm on the basis of diamond encoding could hardly change the originalimages and the problem of overflow of classified pixels has also been solved. The experimentalresults show this algorithm could effectively control the image distortion, reduce RS attack andgain a high steganography capacity.3. With the application of steganography on mobile intelligent terminals, a scheme formultimedia message communication on Android system has been designed.Taking advantage ofcode technology, this scheme strengthen the security of secret information, optimize the originalprocess of sending multimedia messages on Android system, improving the efficiency ofsending.As a result, the multimedia messages, a way of public transmission, has been secured.