An Inverse Halftoning Technique Using Modified Look-Up Tables

• Autorzy: Chang, C.-C. , Chan, C.-S.
• Języki publikacji: EN

Abstrakty

EN

In this paper, we shall propose a method to invert halftone images. We shall use a modified look-up table to reconstruct gray level images from halftone images. In the modified look-up table training phase, we shall use a sliding window to get halftone patterns and their corresponding gray-level lists. The modified look-up table can be obtained by calculating the centroid of the gray-level lists. In the image reconstruction phase, we shall use the sliding window to slide around the pixel to reconstruct so that we can get candidate gray values. The reconstructed gray value can be obtained by calculating the centroid of the candidate gray values. Experimental results have shown that our method indeed can get satisfied results.

Słowa kluczowe

EN

halftone image; error diffusion; lookup table

• Czasopismo: Fundamenta Informaticae
• Rocznik: 2005
• Tom: Vol. 68, nr 3
• Strony: 207-220
• Opis fizyczny: Bibliogr. 10 poz., fot., tab.

Twórcy

autor

Chang, C.-C.

• Department of Information Engineering and Computer Science Feng Chia University, Taichung, Taiwan, R.O.C.,

autor

Chan, C.-S.

• Department of Computer Science and Information Engineering National Chung Cheng University, Chiayi, Taiwan 621, R.O.C.,

Bibliografia

• [1] Chang, C. C., Chan, C. S., Pan, Y. P.: Inverse Halftonng Technique by using genetic algorithm, Proc. the IASTED International Conference, Tokyo, Japan, 2002, 184-189.
• [2] Chang, P. C., Yu, C. S., Lee, T. H.: Hybrid LMS-MMSE Inverse Halftoning Technique, IEEE Transactions on Image Processing, 10(1), 2001, 95-103.
• [3] Kim, Y. T., Arce, G. R., Grabowski, N.: Inverse Halftoning Using Binary Permutation Filters, IEEE Transactions on Image Processing, 4(9), 1995, 1296-1311.
• [4] Kite, T. D., Damera-Venkata, N., Evans, B. L., Bovik, A. C.: A Fast, High-Quality Inverse Halftoning Algorithm for Error Diffused Halftones, IEEE Transactions on Image Processing, 9(9), 2000, 1583-1592.
• [5] Lai, J. Z. C., Yen, J. Y.: Inverse Error-Diffusion Using Classified Vector Quantization, IEEE Transactions on Image Processing, 7(12), 1998, 1753-1758.
• [6] Mese, M., Vaidyanathan, P. P.: Look-Up Table (LUT) Method for Inverse Halftoning, IEEE Transactions on Image Processing, 10(10), 2001, 1566-1578.
• [7] Shen, M. Y., Kuo, C. C. J.: A Robust Nonlinear Filtering Approach to Inverse Halftoning, Journal of Visual Communication and Image Representation, 12(1), 2001, 84-95.
• [8] Ting, M. Y., Riskin, E. A.: Error-Diffused Image Compression Using a Binary-to-Gray-Scale Decoder and Predictive Pruned Tree-Structured Vector Quantization, IEEE Transactions on Image Processing, 3(6), 1994, 854-858.
• [9] Ulichney, R. A.: Digital Halftoning, Cambridge,MA: MIT Press, 1987.
• [10] Damera-Venkata, N., Kite, T. D., Venkataraman, M., Evans, B. L.: Fast Blind Inverse Halftoning, Proc. of 1998 International Conference on Image Processing, 2, 1998, 64-68.