An ETC System Using Advanced Encryption Standard and Arithmetic Coding
J. Subash Chandra Bose, Greeshma Gopinath · 2015
Today, there is almost no area of technical endeavor that is not impacted in some way by digital image processing. The application areas of digital image processing are so varied that some form of organization is desirable in attempting to capture the breadth of this field. There is a need for secure and efficient transmission of images since the multimedia image is increasingly being used. So that the images are compressed and encrypted for transmitting through a network. In some situations image encryption has to be conducted prior to image compression. This has led to the problem of design of an encryption then compression system such that the encrypted image compression is still be efficiently performed.In this paper we design an encryption then compression (ETC) system. In this proposed system, image encryption is done over prediction error domain. For compressing the image efficiently, arithmetic coding based approach is used. For comparing the performance measure the PSNR values of the reconstructed images is used. The algorithm is implemented using MATLAB.