Color Image Gray Out Real-Time Encryption Algorithm Based on Saw-Tooth Space Filling Curve Coupled Compressive Sensing
Yuanbiao Hu · Jiguang zazhi · 2015
the low encryption effective which can not meet the requirement of real time was induced by encryption all the pixels of image and the cipher was still color which increasing the transmission loads after encryption in current algorithms,. So the color image real-time encryption algorithm based on pixel of interest coupled compressive sensing was proposed. The pixel of interest chooses mechanism was designed by principle areas of interest to avoid encrypting image non-significant pixels; Embedding the compressive sensing,the permutation pixels were synchronous compression. Finally,the encryption function was designed to diffusion the permutation pixels to obtain the gray cipher. The simulation results showed that this algorithm highly security,and the encryption efficiency of this algorithm was higher which can meet the requirement of real time comparison with other color image encryption algorithms.