Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1997-01-02
2000-09-26
Saras, Steven J.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
358456, 382252, G09G 510, H04N 140, G06K 936
Patent
active
061248444
ABSTRACT:
A method and apparatus are disclosed which permit halftoning of pixels in an image based upon the relative repulsive forces between a current pixel being halftoned and preferably all previous pixels that have been halftoned. Such arrangements give improved halftoned image quality, at least for some images, compared to that obtained from error diffusion or dithering.
REFERENCES:
patent: 4339774 (1982-07-01), Temple
patent: 4878125 (1989-10-01), Katayama et al.
patent: 4891710 (1990-01-01), Nakazato et al.
patent: 5214294 (1993-05-01), Toyojuku
patent: 5216753 (1993-06-01), Ng
patent: 5271070 (1993-12-01), Truong et al.
patent: 5271095 (1993-12-01), Yamada
patent: 5313309 (1994-05-01), Tai et al.
patent: 5317390 (1994-05-01), Bolza-Schunemann et al.
patent: 5323247 (1994-06-01), Parker et al.
patent: 5337160 (1994-08-01), Jones
patent: 5341228 (1994-08-01), Parker et al.
patent: 5353127 (1994-10-01), Shiau et al.
patent: 5384859 (1995-01-01), Bolza-Schunemann et al.
patent: 5438634 (1995-08-01), Kumagai
patent: 5483634 (1996-01-01), Hasegawa
patent: 5499111 (1996-03-01), Sato et al.
patent: 5521989 (1996-05-01), Fan
patent: 5526438 (1996-06-01), Barton
patent: 5553165 (1996-09-01), Webb et al.
patent: 5604605 (1997-02-01), Moolenaar
patent: 5739808 (1998-04-01), Suga et al.
patent: 5757976 (1998-05-01), Shu
patent: 5844532 (1998-12-01), Silverbrook et al.
patent: 5917614 (1999-06-01), Levien
"an adaptive algorithm For Spatial Greyscale" R.W. Floyd et al., Society For Information Display 1975, Symposium Digest of Technical Papers, 1975, pp. 75-77.
"Digital Halftoning", Robert ULichney, MIT press, 1991.
Bell Paul A
Canon Kabushiki Kaisha
Saras Steven J.
LandOfFree
Force field halftoning does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Force field halftoning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Force field halftoning will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2103885