Color converting method and apparatus and image processing metho

Details Color converting method and apparatus and image processing metho Color converting method and apparatus and image processing metho

1996-02-01

1998-12-08

Chow, Dennis-Doon

Computer graphics processing and selective visual display system

Display peripheral interface input device

345199, 358523, G04G 504

Patent

active

058476920

ABSTRACT:
It is an object to provide color converting method and apparatus and a display control apparatus, in which frequencies of colors which are inputted into a lookup table and the contents of the lookup table are changed in accordance with the frequencies of the colors, thereby a color reproducibility is further improved. In a color converting apparatus for converting inputted color information by using a rewritable lookup table (LUT), occurrence frequencies of output color data of the LUT are counted by using a decoder and a counter, and on the basis of the occurrence frequencies of each color which were calculated, an MPU obtains table data which makes a dispersion of the occurrence frequencies of the output color data of the LUT 100 lie within a predetermined range. The resultant table data is written into an address in the LUT.

REFERENCES:
patent: 4233601 (1980-11-01), Hankins et al.
patent: 5250928 (1993-10-01), Kuriki
patent: 5627950 (1997-05-01), Stokes

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