A cost-effective private-key cryptosystem for color image encryption

Authors:
Rastislav Lukac;Konstantinos N. Plataniotis
Affiliations:
The Edward S. Rogers Sr. Dept. of Electrical and Computer Engineering, University of Toronto, Toronto, Canada;The Edward S. Rogers Sr. Dept. of Electrical and Computer Engineering, University of Toronto, Toronto, Canada
Venue:
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part I
Year:
2005

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IEEE Transactions on Image Processing

A cost-effective encryption scheme for color images

Real-Time Imaging - Special issue on multi-dimensional image processing

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Abstract

This paper presents a cost-effective private-key cryptosystem for color images. The scheme allows for secret sharing of the color image by generating two color shares with dimensions identical to those of the original. Encryption is performed via simple binary operations realized at the image bit-levels altering both the spectral correlation among the RGB color components and the spatial correlation between the neighboring color vectors. The decryption procedure uses both noise-like color shares as the input and recovers the original image with perfect reconstruction.