Efficient encryption of wavelet-based coded color images

K. Heath Martin

doi:10.1016/j.patcog.2005.01.002

2005-07-01

PRE

K. Heath Martin

Rastislav Lukàč

Konstantinos N. Plataniotis

DOI：10.1016/j.patcog.2005.01.002

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摘要

En 中文

An efficient, secure color image coder incorporating Color-SPIHT (C-SPIHT) compression and partial encryption is presented. Confidentiality of the image data is achieved by encrypting only the significance bits of individual wavelet coefficients for K iterations of the C-SPIHT algorithm. By varying K, the level of confidentiality vs. processing overhead can be controlled. For K = 2, adequate security is achieved and an average of only 0.40% of bits needed encrypting for test images coded at 0.8 bpp. (c) 2005 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.

Keyword:

image encryption

partial encryption

secure coding

secure wavelet based coding

secure SPIHT