Clustered minority pixel error diffusion

Author

Li, Pingshan ; Allebach, Jan P.

Author_Institution

Sony Electron. Inc., San Jose, CA, USA

Volume

1

fYear

2002

fDate

2002

Abstract

We present a clustered minority pixel error diffusion halftoning algorithm for which the quantizer threshold is modified based on the past output and a dot activation map. Dot size, dot shape, and dot distribution are more controllable, compared with other clustered dot halftone algorithms such as R. Levien´s algorithm (see IS&T 8th Int. Congress on Advances in Non-Impact Printing Technologies, p.280-2, 1992). This method also effectively reduces structured worm-like artifacts in midtones that occur in Levien´s algorithm. The dot distribution is further improved by using different error diffusion weights for different input gray levels.

Keywords

image processing; printing; quantisation (signal); Levien algorithm; clustered minority pixel error diffusion; digital halftoning; dispersed dot printing; dot activation map; dot distribution; dot shape; dot size; gray levels; image halftoning algorithm; quantizer threshold; worm-like artifacts; Clustering algorithms; Computer errors; Error correction; Frequency; Hysteresis; Printers; Printing; Shape control; Signal processing algorithms; Size control;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing. 2002. Proceedings. 2002 International Conference on

ISSN

1522-4880

Print_ISBN

0-7803-7622-6

Type

conf

DOI

10.1109/ICIP.2002.1038106

Filename

1038106