Error diffusion method and apparatus using weighted vectors...

Details Error diffusion method and apparatus using weighted vectors... Error diffusion method and apparatus using weighted vectors...

2006-01-26

2009-08-04

Tieu, Benny Q (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003040, C358S003050, C382S252000, C347S009000, C347S012000, C347S014000, C347S015000, C347S023000

Reexamination Certificate

active

07570392

ABSTRACT:
A device including: an acquirer acquiring image data having an M-value (M≧3) pixel value; a memory storing nozzle information; another memory storing error diffusion matrices having different diffusion ratios of an error; a selector selecting specific pixel data in the image data; an N-value converter converting the M-value to an N value (M>N≧2); a diffuser diffusing the error to pixel data not subjected to the conversion in the image data according to the error diffusion matrix by using a difference between a selected pixel data value before and after conversion as the error; a generator generating print data defining nozzle dot information corresponding to the image data after the conversion; and a printer. The diffuser selects a specific error diffusion matrix for each selected pixel data according to the nozzle information, and diffuses the error to the pixel data not subjected to the conversion.

REFERENCES:
patent: 6283571 (2001-09-01), Zhou et al.
patent: 6293643 (2001-09-01), Shimada et al.
patent: 6328404 (2001-12-01), Fujimori
patent: 6908176 (2005-06-01), Koitabashi
patent: 7290846 (2007-11-01), Takahashi
patent: 2003/0085939 (2003-05-01), Koitabashi
patent: 2003/0151773 (2003-08-01), Ogawa et al.
patent: 2004/0119766 (2004-06-01), Shibata
patent: 2004/0252148 (2004-12-01), Shibata et al.
patent: 2006/0170937 (2006-08-01), Takahashi
patent: 2006/0197793 (2006-09-01), Takahashi et al.
patent: 01-235655 (1989-09-01), None
patent: 05-030361 (1993-02-01), None
patent: 11-151821 (1999-08-01), None
patent: 11-254662 (1999-09-01), None
patent: 2000-79710 (2000-03-01), None
patent: 2000-190470 (2000-07-01), None
patent: 2000-225716 (2000-08-01), None
patent: 2002-019101 (2002-01-01), None
patent: 2003-063043 (2003-03-01), None
patent: 2003-136702 (2003-05-01), None
patent: 2004-058284 (2004-02-01), None
patent: 2004-284279 (2004-10-01), None

Affiliated with

Also associated with

Rating

Error diffusion method and apparatus using weighted vectors... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Error diffusion method and apparatus using weighted vectors..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error diffusion method and apparatus using weighted vectors... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4079588