Review on Different Chaotic Based Image Encryption Techniques

In present times, Due to the rapidly growth of digital and multimedia applications, more multimedia data are developed and transmitted through the networks in ,art, entertainment, advertising, education, training and commercial areas, which may have important information that should not be accessed by the general users. Therefore issue of protecting the confidentiality, integrity, security, privacy as well as the authenticity of images has become an important issue for communication and storage of images. In recent years, various encryption techniques are developed and applied to protect the confidential images from unauthorized users. This paper has a review on the aspects and existing different image encryption techniques based on chaos to design an image cryptosystem. In this paper, first a general introduction given for cryptography and images encryption and followed by discussion of different chaotic based image encryption techniques and related works for each technique reviewed. Finally, The main purpose of this paper is to help in design of new chaotic based image encryption techniques in future by studying the behavior of several existing chaotic based image encryption algorithms.