Image processing method to reduce marking material coverage in p

Details Image processing method to reduce marking material coverage in p Image processing method to reduce marking material coverage in p

1994-08-15

1997-06-03

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 15, B41J 221, B41J 2205

Patent

active

056359675

ABSTRACT:
A method and apparatus for reducing marking material coverage in reproduction of edges in a halftoned image, includes the steps of: a) detecting edges in the image using edge filtering; and b) reducing marking material coverage at the detected edges. Interseparation correlation may also be provided, for the purpose of ascertaining whether a detected edge is against a white or no colorant region, in which circumstance, marking material coverage is not reduced. Further described is the reduction of marking material coverage at the detected edges in proportion to the overall coverage in the image region, taking into account the kind of colors (primary, secondary) forming the edge.

REFERENCES:
patent: 4638337 (1987-01-01), Torpey et al.
patent: 4774530 (1988-09-01), Hawkins
patent: 4930018 (1990-05-01), Chan et al.
patent: 4999646 (1991-03-01), Trask
patent: 5237344 (1993-08-01), Tasaki et al.
patent: 5252995 (1993-10-01), Trask et al.
patent: 5339171 (1994-08-01), Fujisawa et al.
patent: 5387976 (1995-02-01), Lesniak
patent: 5428377 (1995-06-01), Stoffel et al.
patent: 5469267 (1995-11-01), Wang
Patent Abstracts of Japan, vol. 14, No. 583, (M-1064) Dec. 26, 1990 & JP-A-02253958; (Canon) Oct. 12, 1990.
Patent Abstracts of Japan, vol. 18, No. 470 (E-1600) Oct. 30, 1992 & JP-A-06152902, (Canon) May 31, 1994.
J.A.C. Yule; "Principles of Color Reproduction"; J. Wiley & Sons, 1967.
Klassen; "Reducing Ink Coverage Levels in Binary CMYK Images"; Proc. Soc. Imaging Science & Technology; 46th Annual Conference; May 1993.

Affiliated with

Also associated with

Rating

Image processing method to reduce marking material coverage in p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image processing method to reduce marking material coverage in p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing method to reduce marking material coverage in p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-394832