Abstract

Based on the principle of spatial pyramid for signal, a multi-scale transform of two-dimensional (2D) interpolating pyramid is constructed by the nonlinear median operator. The transform properties of error diffuse halftoning noise on multiple scales are investigated and analyzed through experiments. According to these properties, a robust inverse halftoning method is proposed. The halftoning image is firstly preprocessed by a Gaussian low-pass filter, and decomposed by the one-scale transform. Then a Wiener filter is employed to the detailed coefficients. Finally an inverse image is reconstructed. Experimental results show that the proposed transform has the advantage of separating the halftoning noise and image detail over linear multi-resolution transform. The presented inverse halftoning method performs some excellent abilities on sharp edge, high peak signal-to-noise ratio (PSNR), and small memory requirement.

© 2007 Chinese Optics Letters

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2006 (1)

2004 (2)

W. Huang, D. Bi, B. Mao, and S. Ma, Chin. J. Electron. Info. Technol. (in Chinese) 26, 1686 (2004).

Y. Kong and P. Zeng, Chin. J. Scient. Instrum. (in Chinese) 25, (Suppl. 4) 177 (2004).

2001 (2)

M.-Y. Shen and C.-C. J. Kuo, J. Visual Commun. Image Representation 12, 84 (2001).

G. Liu and W. Yang, Acta Opt. Sin. (in Chinese) 21, 1336 (2001).

1999 (1)

Z. Xiong, M. T. Orchard, and K. Ramchandran, IEEE Trans. Image Processing 8, 1479 (1999).

1997 (1)

R. L. Stevenson, IEEE Trans. Image Processing 6, 574 (1997).

1995 (1)

P. W. Wong, IEEE Trans. Image Processing 4, 486 (1995).

1983 (1)

P. J. Burt and E. H. Adelson, IEEE Trans. Commun. 31, 532 (1983).

Acta Opt. Sin. (in Chinese) (1)

G. Liu and W. Yang, Acta Opt. Sin. (in Chinese) 21, 1336 (2001).

Chin. J. Electron. Info. Technol. (in Chinese) (1)

W. Huang, D. Bi, B. Mao, and S. Ma, Chin. J. Electron. Info. Technol. (in Chinese) 26, 1686 (2004).

Chin. J. Scient. Instrum. (in Chinese) (1)

Y. Kong and P. Zeng, Chin. J. Scient. Instrum. (in Chinese) 25, (Suppl. 4) 177 (2004).

Chin. Opt. Lett. (1)

IEEE Trans. Commun. (1)

P. J. Burt and E. H. Adelson, IEEE Trans. Commun. 31, 532 (1983).

IEEE Trans. Image Processing (3)

Z. Xiong, M. T. Orchard, and K. Ramchandran, IEEE Trans. Image Processing 8, 1479 (1999).

P. W. Wong, IEEE Trans. Image Processing 4, 486 (1995).

R. L. Stevenson, IEEE Trans. Image Processing 6, 574 (1997).

J. Visual Commun. Image Representation (1)

M.-Y. Shen and C.-C. J. Kuo, J. Visual Commun. Image Representation 12, 84 (2001).

Other (3)

R. A. Ulichney, Digital Halftoning (MIT Press, Cambridge, 1987) p.233.

M. Mese and P. P. Vaidyanathan, in Proceedings of IEEE International Symposium on Circuits and Systems 517 (2000).

D. L. Donoho and T. P. Y. Yu, in Proceedings of IEEE 31st Asilomar Conference Signals and Systems 75 (1997).

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