Method for building a color look-up table

Details Method for building a color look-up table Method for building a color look-up table

1990-02-14

1991-03-26

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340701, G09G 506

Patent

active

050032992

ABSTRACT:
A method for building an inverse color look-up table in a color graphics system. The inverse color look-up table accepts as an address input RGB color information and provides as a data output index information for indexing a color look-up table. The method initializes an array of data elements, each of said data elements for storing said index information, each of said data elements corresponding to a color position in RGB color space. A first index value is stored in the array, the first index value corresponding to an index for the color look-up table. The first index value is stored in a first of the data elements, the first data element corresponding to a color represented by the first index value in the color look-up table. An address of the first data element is also stored in a queue means. For a second of the data elements, it is determined whether the second data element has been assigned an index value. If the second data element has not been assigned an index value, second data element is assigned the first index value and an address is stored for the second data element in the queue means.

REFERENCES:
patent: 4368463 (1983-01-01), Quilliam
patent: 4598282 (1986-07-01), Pugsley
patent: 4799053 (1989-01-01), Van Aken et al.

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