EXTENDED VISUAL CRYPTOGRAPHY SCHEME FOR COLOR IMAGES WITH NO PIXEL EXPANSION

Xiaoyu Wu, Duncan S. Wong, Qing Li

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

  1. Ateniese, G., Blundo, C., Santis, A. D., and Stinson, D. R. (1996). Visual cryptography for general access structures. Inf. Comput., 129(2):86-106.
  2. Nakajima, M. and Yamaguchi, Y. (2002). Extended visual cryptography for natural images. Journal of WSCG, 10(2):303-310.
  3. Naor, M. and Shamir, A. (1994). Visual cryptography. In Advances in Cryptology - EUROCRYPT 7894, pages 1- 12. Lecture Notes in Computer Science, Vol. 950.
  4. Sirhindi, R., Afzal, M., and Murtaza, S. (2009). An extended secret sharing scheme for colour images with fixed pixel expansion. International Journal of Electronic Security and Digital Forensics, 2(1):58-67.
  5. Wang, D., Yi, F., and Li, X. (2009). On general construction for extended visual cryptography schemes. Pattern Recognition, 42(11):3071-3082.
  6. Yang, C. N. (2004). New visual secret sharing schemes using probabilistic method. Pattern Recognition Letters, 25(4):481-494.
Download


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