Progressive sharing for a secret image

Authors:
Chin-Pan Huang;Chaur-Heh Hsieh;Ping Sheng Huang
Affiliations:
Department of Computer and Communication Engineering, Ming Chuan University, Taoyuan 333, Taiwan, ROC;Department of Computer and Communication Engineering, Ming Chuan University, Taoyuan 333, Taiwan, ROC;Department of Electronic Engineering, Ming Chuan University, Taoyuan 333, Taiwan, ROC
Venue:
Journal of Systems and Software
Year:
2010

Citing 13
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A novel real-time and progressive secret image sharing with flexible shadows based on compressive sensing

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Abstract

Based on the wavelet transform, a new progressive sharing scheme is proposed to share a secret image into several shadow images using SPIHT encoding processes and Shamir's threshold scheme. Quality refinement of the recovered image is achieved by the data consumed from the threshold number (r) of shadow images and each single shadow image reveals no information about the secret image. The size of each shadow image is smaller than 1/r of the secret image and any number of shadow images that is less than r reveals no information about the secret image. The proposed approach is secure for image sharing and provides excellent peak signal-to-noise ratio (PSNR) versus rate performance. Experimental results have demonstrated the promising performance of this method in progressive sharing.