Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1999-04-23
2000-09-05
Tung, Kee M.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345154, 358 12, 358 19, 358523, G09G 506
Patent
active
061150312
ABSTRACT:
A method of converting a first set of input color values, such as RGB color values, into a set of device colorants, such as CMY color values, includes the step of providing a look-up table associating a respective, predetermined set of CMY color values with each of a plurality of selected sets of RGB color values. The first set of RGB color values includes a first red color value, a first green color value and a first blue color value. A first random number is added to the first red color value to obtain a randomized red color value. A second random number is added to the first green color value to obtain a randomized green color value. A third random number is added to the first blue color value to obtain a randomized blue color value. Each of the randomized red color value, the randomized green color value and the randomized blue color value are compiled together to obtain a set of randomized RGB color values. A closest one of the selected sets of RGB color values in the look-up table is determined which is closest to the set of randomized RGB color values. The first set of RGB color values is converted into a set of CMY color values that is associated with the closest one of the selected sets of RGB color values in the look-up table. The random numbers which are added to the original RGB values are derived through a deterministic process based on the low order bits of those values.
REFERENCES:
patent: 4297744 (1981-10-01), Hoffmann et al.
patent: 4394693 (1983-07-01), Shirley
patent: 5062724 (1991-11-01), Iizuka
patent: 5377041 (1994-12-01), Spaulding et al.
patent: 5548689 (1996-08-01), Poppenga et al.
patent: 5548690 (1996-08-01), Shimada
patent: 5553201 (1996-09-01), Muramatsu
patent: 5559930 (1996-09-01), Cariffe et al.
patent: 5574832 (1996-11-01), Towery et al.
patent: 5644648 (1997-07-01), Bose et al.
patent: 5689624 (1997-11-01), Allegrezza
patent: 5729358 (1998-03-01), Uchiyama et al.
patent: 5745659 (1998-04-01), Rigau Rigau et al.
patent: 5745660 (1998-04-01), Kolpatzik et al.
patent: 5748860 (1998-05-01), Shively
patent: 5787193 (1998-07-01), Balasubramanian
patent: 6042211 (2000-03-01), Hudson et al.
Daniel Stuart Willard
Love Shaun Timothy
Weed Steven Frank
Lambert D. Brent
Lexmark International Inc.
Taylor Todd T.
Tung Kee M.
LandOfFree
Method of converting color values does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of converting color values, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of converting color values will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2217264