EXTENDED VISUAL CRYPTOGRAPHY SCHEME FOR COLOR IMAGES WITH NO PIXEL EXPANSION

Xiaoyu Wu, Duncan S. Wong, Qing Li

2010

Abstract

A k-out-of-n Extended Visual Cryptography Scheme (EVCS) is a secret sharing scheme which hides a secret image into n shares, which are also some images. The secret image can be recovered if at least k of the shares are superimposed, while nothing can be obtained if less than k shares are known. Previous EVCS schemes are either for black-and-white images or having pixel expansion. In this paper, we propose the first k-out-of-n EVCS for color images with no pixel expansion. The scheme also improves the contrast of the n shares and the reconstructed secret image (i.e. the superimposed image of any k or more shares) by allowing users to specify the level of each primary color (i.e. Red, Green and Blue) in the image shares as well as the reconstructed secret image.

References

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Paper Citation


in Harvard Style

Wu X., S. Wong D. and Li Q. (2010). EXTENDED VISUAL CRYPTOGRAPHY SCHEME FOR COLOR IMAGES WITH NO PIXEL EXPANSION . In Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010) ISBN 978-989-8425-18-8, pages 423-426. DOI: 10.5220/0002936904230426


in Bibtex Style

@conference{secrypt10,
author={Xiaoyu Wu and Duncan S. Wong and Qing Li},
title={EXTENDED VISUAL CRYPTOGRAPHY SCHEME FOR COLOR IMAGES WITH NO PIXEL EXPANSION},
booktitle={Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010)},
year={2010},
pages={423-426},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002936904230426},
isbn={978-989-8425-18-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Security and Cryptography - Volume 1: SECRYPT, (ICETE 2010)
TI - EXTENDED VISUAL CRYPTOGRAPHY SCHEME FOR COLOR IMAGES WITH NO PIXEL EXPANSION
SN - 978-989-8425-18-8
AU - Wu X.
AU - S. Wong D.
AU - Li Q.
PY - 2010
SP - 423
EP - 426
DO - 10.5220/0002936904230426