文件名称：光学图像加密SCI论文
文件大小：386KB
文件格式：PDF
更新时间：2015-03-10 10:41:40
图像加密
What we believe to be a new technique, based on a modified Gerchberg–Saxton algorithm (MGSA) and a phase modulation scheme in the Fresnel-transform domain, is proposed to reduce cross talks existing in multiple-image encryption and multiplexing. First, each plain image is encoded and multiplexed into a phase function by using the MGSA and a different wavelength/position parameter. Then all the created phase functions are phase modulated to result in different shift amounts of the reconstruction images before being combined together into a single phase-only function. Simulation results show that the cross talks between multiplexed images have been significantly reduced, compared with prior methods