Block-based threshold modulation error diffusion

Yan Zhou; Chun Chen; Qiang Wang; Jiajun Bu; Hua Zhou

doi:10.1117/1.3555132

1 January 2011 Block-based threshold modulation error diffusion

Yan Zhou, Chun Chen, Qiang Wang, Jiajun Bu, Hua Zhou

Author Affiliations +

Journal of Electronic Imaging, Vol. 20, Issue 1, 013018 (January 2011). https://doi.org/10.1117/1.3555132

Abstract

In this paper, we describe a block-based threshold modulation error diffusion algorithm to parallelize the halftone process without generating both block-boundary and diagonal artifacts. A novel scan path is used to pass the quantization error effectively between blocks and the input-dependent threshold modulation is applied during the inner-block processing. To obtain a suitable parameter set for the error weights and threshold modulation strength, a cost function is designed. Experimental results show that the proposed algorithm generates high quality halftone images which are visually similar to those generated by serial error diffusion algorithms. Our algorithm achieves better performance both in quality and parallelism compared to other halftoning approaches.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Yan Zhou, Chun Chen, Qiang Wang, Jiajun Bu, and Hua Zhou "Block-based threshold modulation error diffusion," Journal of Electronic Imaging 20(1), 013018 (1 January 2011). https://doi.org/10.1117/1.3555132

Published: 1 January 2011

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