International Journal of Image, Graphics and Signal Processing(IJIGSP)
ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)
Published By: MECS Press
IJIGSP Vol.5, No.6, May. 2013
A Novel Visual Cryptographic Method for Color Images
Full Text (PDF, 500KB), PP.49-56
Visual cryptography is considered to be a vital technique for hiding visual data from intruders. Because of its importance, it finds applications in various sectors such as E-voting system, financial documents and copyright protections etc. A number of methods have been proposed in past for encrypting color images such as color decomposition, contrast manipulation, polynomial method, using the difference in color intensity values in a color image etc. The major flaws with most of the earlier proposed methods is the complexity encountered during the implementation of the methods on a wide scale basis, the problem of random pixilation and insertion of noise in encrypted images. This paper presents a simple and highly resistant algorithm for visual cryptography to be performed on color images. The main advantage of the proposed cryptographic algorithm is the robustness and low computational cost with structure simplicity. The proposed algorithm outperformed the conventional methods when tested over sample images proven using key analysis, SSIM and histogram analysis tests. In addition, the proposed method overshadows the standard method in terms of the signal to noise ratio obtained for the encrypted image, which is much better than the SNR value obtained using the standard method. The paper also makes a worst case analysis for the SNR values for both the methods.
Cite This Paper
Devinder Kumar,Amarjot Singh,S.N. Omkar,"A Novel Visual Cryptographic Method for Color Images", IJIGSP, vol.5, no.6, pp.49-56, 2013.DOI: 10.5815/ijigsp.2013.06.07
M.Naor and A Shamir, "Visual Cryptography", Proceeding of Eurocrypt 94 Lecture Notes in Computer Science, LNCS963: Springer, 1994,
D Chaum, "Secret-ballot receipts: True voter-variable elections", IEEE Security and Privacy, pp 38-47, 2004
W. Hawkes, A. Yasinsac, C. Cline, An Application of Visual Cryptography to Financial Documents,technical report TR001001, Florida State University (2000).
P. S. Revenkar, Anisa Anjum, W. Z. Gandhare: Secure Iris Authentication Using Visual Cryptography International Journal of Computer Science and Information Security, Vol. 7, No.3, pp217-221 ,2010
Y.C. Hou, C.Y. Chang, F. Lin, Visual cryptography for color images based on color decomposition, Proceedings of the Fifth Conference on Information Management, Taipei, November 1999, pp. 584–591.
C.C. Thien and J.C. Lin, "Secret image sharing," Computers & Graphics, vol. 26, no. 5, pp. 765–770, 2002.
Jing Dong; Tieniu Tan; "Effects of watermarking on iris recognition performance" 10th International Conference on Control, Automation, Robotics and Vision, 2008. ICARCV 2008.
Z. Wang, A. C. Bovik, H. R. Sheikh and E. P. Simoncelli, "Image quality assessment: From error visibility to structural similarity," IEEE Transactions on Image Processing, vol. 13, no. 4, pp. 600-612, Apr. 2004.
Alfredo Rizzi, "Statistical Methods for Cryptography" Proceedings of the 6th Conference of the Classification and Data Analysis, 1st Edition., 2010, XXII, 482 p. 109 illus.
E. Biham and A. Shamir, "Differential Cryptanalysis of DES-like Cryptosystems," Lecture Notes in Computer Science: Advances in Cryptology-Proceedings of CRYPTO '90, Springer-Verlag, 1990, pp. 2- 21.
An Application of Visual Cryptography To Financial Documents L. Hawkes, A.Yasinsac and C. Cline, An Application of Visual Cryptography to Financial Documents; technical report TR001001, Florida State University (2000).
R. Hwang, A digital Image Copyright Protection Scheme Based on Visual Cryptography, Tambang Journal of science and Engineering, vol.3, No.2, pp. 97-106 (2000)
B.SaiChandana, S.Anuradha "A New Visual Cryptography Scheme for Color Images" in International Journal of Engineering Science and Technology,Vol. 2(6), 2010