Research Article
A New Color Visual Cryptography Scheme with Perfect Contrast
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694638, author={Xiao-Yi Liu and Ming-Song Chen and Ya-Li Zhang}, title={A New Color Visual Cryptography Scheme with Perfect Contrast}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={visual cryptography perfect contrast color images transmission risk}, doi={10.1109/ChinaCom.2013.6694638} }- Xiao-Yi Liu
Ming-Song Chen
Ya-Li Zhang
Year: 2013
A New Color Visual Cryptography Scheme with Perfect Contrast
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694638
Abstract
In this paper, we propose a new color visual cryptography scheme based on the modified visual cryptography. This scheme can share a color secret image over n-1 arbitrary natural images and one noise-like share image. Instead of altering the contents of natural images, the encryption process extracts feature images from each natural image. In such a way, the proposed approach can effectively reduce the transmission risk and solve the management problems. Moreover, this approach avoids the pixel expansion problem and makes it possible to recover secret images without any distortion. Thus, the proposed scheme can share b&w, gray-level or color images in a secret way and is easy to implement.
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