Double Random Phase Encryption and Hiding Technique Based on Symmetric Image
Jinping Fan, Yonglin Zhang · Jisuanji gongcheng · 2010
A new technique of gray image encryption and hiding based on a large enough symmetric host image using double random phase encoding technique is proposed.Double random phase encoding is implemented on the original image.According to the property of the symmetric image,the real and imaginary parts of the encoding image are hidden in the corresponding subimage of an absolute symmetric host image.Simple extracted and decryption operations can be employed to obtain the reconstructed image without distortion.Experimental results show that in the context of knowing the keys,it can extract the hidden image losslessly just using small weight value.