The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2003
Filed:
May. 12, 2000
Applicant:
Inventors:
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/02 ;
U.S. Cl.
CPC ...
G09G 5/02 ;
Abstract
A method and a system for a fast and reliable color reduction from multiple bit color representations to 4 bit color representations. The method for color reduction in a computer system having a three color model for color representation of a pixel, each color being represented by a multiple bit pattern, reduces the color to a four bit value by analysing the first bit of each of said three multiple bit patterns to determine tone; assigning a value to the first bit of said four bit value, based on said determined tone; and assigning the remaining three bits of said four bit value by utilising one pre-determined bit from each of said three multiple bit patterns.