Managing color selection in computer display windows for multipl

Details Managing color selection in computer display windows for multipl Managing color selection in computer display windows for multipl

1994-02-02

1995-04-11

Brier, Jeffery

Computer graphics processing and selective visual display system

Display peripheral interface input device

345199, 395131, G09G 506, G09G 514

Patent

active

054063108

ABSTRACT:
In a windows environment, a plurality of computer program applications use a common look-up table to allocate colors. When the common look-up table is full, a mechanism must be provided to determine which colors will be stored in the common look-up table. Several alternatives exist; the order of the alternatives can be specified by the user or application program. A first alternative will attempt to allocate colors in the common look-up table with the true image colors called for by the program. A second alternative uses a reduced set (reduced number) of image colors so that they will fit in the common look-up table. The image colors are regenerated from the reduced set through a dithering or error diffusion algorithm. A third alternative is to find the color in the common look-up table which is mathematically closest to the image color. If these alternatives are not used, a new look-up table can be created. When a new look-up table is created, each non-image color is assigned a class, each class having a priority with respect to other classes. When there is a request to allocate an image color to the look-up table which is full, a non-image color is replaced based on its priority. Lowest priority non-image colors are replaced first.

REFERENCES:
patent: 4550315 (1985-10-01), Bass et al.
patent: 5025249 (1991-06-01), Seiler et al.
patent: 5091720 (1992-02-01), Wood
patent: 5142615 (1992-08-01), Levesque et al.

Affiliated with

Also associated with

Rating

Managing color selection in computer display windows for multipl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Managing color selection in computer display windows for multipl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Managing color selection in computer display windows for multipl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1541931