Peer-Reviewed Journal Details
Mandatory Fields
Monaghan, DS;Situ, G;Gopinathan, U;Naughton, TJ;Sheridan, JT
2008
July
Journal of Applied Optics
Role of phase key in the double random phase encoding technique: an error analysis
Published
30 ()
Optional Fields
OPTICAL ENCRYPTION IMAGE ENCRYPTION FOURIER HOLOGRAMS SYSTEM DOMAIN PLANE
47
3808
3816
We perform a numerical analysis of the double random phase encryption-decryption technique to determine how, in the case of both amplitude and phase encoding, the two decryption keys (the image- and Fourier-plane keys) affect the output gray-scale image when they are in error. We perform perfect encryption and imperfect decryption. We introduce errors into the decrypting keys that correspond to the use of random distributions of incorrect pixel values. We quantify the effects that increasing amounts of error in the image-plane key, the Fourier-plane key, and both keys simultaneously have on the decrypted image. Quantization effects are also examined. (C) 2008 Optical Society of America.
WASHINGTON
1559-128X
Grant Details