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Proceedings Paper

Improved error diffusion method
Author(s): Te-Mei Wang; King-Lung Huang; Po-Chih Wang
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Paper Abstract

Using the error diffusion method to print documents through a medium resolution (typically between 300 dpi and 600 dpi) printer has three drawbacks: (1) the snake-like noise disturbs the white background; (2) the printed image is too dark to distinguish the details; (3) the printed text exhibits a coarse edge. In this paper, the authors propose some methods to overcome these shortcomings. In order to eliminate the first shortcoming, a white minimum threshold value is set to calibrate the diffused errors. For the second shortcoming, a tone-scale adjustment function is used to lighten the images. Finally, an edge enhancement algorithm is introduced to overcome the third shortcoming.

Paper Details

Date Published: 28 October 1992
PDF: 12 pages
Proc. SPIE 1816, Electro-Optic Computer Peripherals Technology, (28 October 1992); doi: 10.1117/12.131337
Show Author Affiliations
Te-Mei Wang, Industrial Technology Research Institute (Taiwan)
King-Lung Huang, Industrial Technology Research Institute (Taiwan)
Po-Chih Wang, Industrial Technology Research Institute (Taiwan)


Published in SPIE Proceedings Vol. 1816:
Electro-Optic Computer Peripherals Technology
Eric G. Lean; Min-Shyong Lin, Editor(s)

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