Image Encryption Technology Based on DWT Domain
Keyu Ren · Information and Electronic Engineering · 2005
How to ensure the safety of digital image/video information is the difficulty and hotspot in the domain of information processing technology nowadays. In this paper,the discrete wavelet transform coefficient matrix is adjusted and scrambling transformed based on the stochastic unpredictable chaos sequences.The key is hided by using information hiding technology to achieve high-strength encryption.The simulation result shows that this algorithm has realized the image chaos encryption without the increment of data. The original image and the restored image have good identity. The encrypted image has good anti-channel noise and anti-compress performance as well.