A flexible JPEG2000 image encryption based on arithmetic coding
Yang Ou, Won-Young Lee, Kyung-Hyune Rhee · 2007
In this paper, we propose a flexible JPEG2000 image encryption based on arithmetic coding which combines both compression and encryption. Particularly, we randomly add a subinterval to the probability interval in each coding step during the iterative process of arithmetic coder. The range of this subinterval can be flexibly adjusted depending on the properties of different applied environments. Furthermore, our approach supports backward compatibility so that an encryption-unaware format-compliant player can play the encrypted code stream without any crash. Notably, our algorithm achieves a very simple switch between the standard compression model and our joint model.