Image processing system with improved color compensation when tr

Details Image processing system with improved color compensation when tr Image processing system with improved color compensation when tr

1994-02-25

1996-10-22

Zimmerman, Mark K.

H04N 140

Patent

active

055685960

ABSTRACT:
An image processing system (10, 20) comprises a framestore (11) or other source of image data in a first color format (RGB) and is arranged to convert the data into data representing at least one color separation. A color rotator 14, such as a color transform matrix, is provided for rotating on a pixel-by-pixel basis the first color format data (RGB) into data in a second color format (NPQ) selected such that one of the colors thereof corresponds to the color of the at least one color separation. A look-up table (15) determines from the most significant parts of the data from the rotator (14) a range of color values in the second color format which includes the value of the color separation pixel. An interpolator (16) receives data defining the range of values from the look-up table and in response to the least significant parts of the data from the color rotator (14) interpolates the data from the look-up table to determine the value of the color separation pixel.

REFERENCES:
patent: 4623973 (1986-11-01), Hoffrichter et al.
patent: 4829455 (1989-05-01), Long et al.
patent: 4829584 (1989-05-01), Shimano
patent: 4864388 (1989-09-01), Skrydstrup
patent: 4992861 (1991-02-01), D'Errico
patent: 5012333 (1991-04-01), Lee et al.
patent: 5018085 (1991-05-01), Smith, Jr.
patent: 5155588 (1992-10-01), Levien
patent: 5157483 (1992-10-01), Shoji et al.
patent: 5227863 (1993-07-01), Bilbrey et al.
patent: 5233684 (1993-08-01), Ulichney
patent: 5321797 (1994-06-01), Morton
Foley et al, "Computer Graphics: Principles and Practice, Second Edition," pp. 584-589, 1990.
Microsoft Windows 3.1 User's Guide, p. 146, copyright 1991.
Roesnberg J., "Computers, Information Processing & Telecommunications, Second Edition", pp. 572 & 614, copyright 1987.

Affiliated with

Also associated with

Rating

Image processing system with improved color compensation when tr 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 system with improved color compensation when tr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing system with improved color compensation when tr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2366286