Method and apparatus for automatically adjusting dynamic color t

Details Method and apparatus for automatically adjusting dynamic color t Method and apparatus for automatically adjusting dynamic color t

1991-09-06

1993-08-31

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 40, H04N 973

Patent

active

052413748

ABSTRACT:
Present color TV equipment utilizes single fixation whitebalance color temperature reference programs. Such equipment can not give consideration to various disadvantages in image reproducing results. The method and the apparatus disclosed can correct color TV equipment with a dynamic color temperature state using an applicable range along a Planckian locus color temperature band as a white-balance color temperature parameter region, and can make the corresponding relation between hue - color temperature parameters meet requirements of an optimum image reproducing result. Therefore, the reproducing results and the quality of a general appearance of a color TV picture are improved. It is also possible to produce or improve color TV equipment with low cost.

REFERENCES:
patent: 4701788 (1987-10-01), Desjardins
patent: 4709262 (1987-11-01), Spieth et al.
patent: 4942459 (1990-07-01), Hieda et al.
patent: 5021874 (1991-06-01), Tsugita
patent: 5047861 (1991-09-01), Houchin et al.
patent: 5099313 (1992-03-01), Suemoto et al.
patent: 5099316 (1992-03-01), Ogawa
IEEE Transactions on Consumer Electronics, Feb., 1976, "A Chrominance Demodulator IC with Dynamic Flesh Correction", by L. A. Harwood, pp. 341-347.

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