Brightness referenced color image correcting apparatus

Details Brightness referenced color image correcting apparatus Brightness referenced color image correcting apparatus

1991-03-05

1994-01-11

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

Color photography previewer

358500, 382 51, H04N 146

Patent

active

052786412

ABSTRACT:
A color image processing system which reads or receives a color image and outputs corrected color image to a display or printer. The system estimates the brightness of the original image and executes correction on the basis of this estimation. The system uses histograms to determine correction.

REFERENCES:
patent: 4649423 (1987-03-01), Hoffrichter et al.
patent: 4736245 (1988-04-01), Seto et al.
patent: 4812903 (1989-03-01), Wagonsonner et al.
patent: 4975768 (1990-12-01), Takaraga
"Automatic Image Brightness Scaling", IBM Technical Disclosure Bulletin, vol. 28, No. 3, Aug. 1985, pp. 1250-1252.
Shinohara, S. et al., "Human Face Detection From Negative Color Film and Its Color Correction", Proceeding of the Joint Conference On Image Technology pp. 151, 1987.

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