Dr. Chan Park Profile

Dr. Chan Park

at Pusan National Univ

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Proceedings Article | 4 April 1997 Paper

Efficient hardware structure for various binarization algorithms

Jae Kim, Young Jeong, Chae Lee, Chang Park

Proceedings Volume 3018, (1997) https://doi.org/10.1117/12.271606

KEYWORDS: Diffusion, Modulation, Linear filtering, Logic, Multiplexers, Image quality, Image enhancement, Printing, Algorithm development, Optical filters

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In this paper, a novel and unified hardware structure to implement various binarization algorithms is proposed. It is designed to perform: 1) simple thresholding, 2) high pass filtering, 3) dithering, 4) blue noise masking, 5) error diffusion, 6) threshold nodulated error diffusion, and 7) edge enhanced error diffusion. In general, these algorithms have been implemented with several logic blocks. We found that a single data path architecture can be used for implementing those algorithms. A new structure is designed to have same data-flow that can share the blocks. All processing is possible in the proposed unified architecture which is based on the threshold modulated and edge enhanced error diffusion scheme. This structure has error filter coefficient registers, error memory, threshold memory, and arithmetic units, etc. This paper shows that the proposed hardware structure reduces the number of gates efficiently. The hardware design and debugging complexity is reduced by the unified control logic and data path.

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