Method of processing image information

Details Method of processing image information Method of processing image information

1988-06-03

1989-06-27

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, 358280, H04N 146

Patent

active

048434582

ABSTRACT:
An image information processing method comprises a step of generating electrical color image signals representative of the quantities of light of separated colors from an object, and a step of converting the generated color image signals to signals with values substantially proportional to the cubic root of the quantities of light from the object with respect to the respective separated colors. The method comprises a step of adjusting recording gradation characteristics of respective colors to be recorded such that the values of color image signals to be recorded are substantially proportional to the cubic root of recorded reflectivities, respectively, and a step of determining recording gradations of the respective colors in accordance with the color image signals by using the adjusted recording gradation characteristics.

REFERENCES:
patent: 4346401 (1982-08-01), Ohara
patent: 4558356 (1985-12-01), Toda et al.
patent: 4638372 (1987-01-01), Leng et al.
patent: 4667228 (1987-05-01), Kawamura et al.
patent: 4700236 (1987-10-01), Abe
patent: 4711553 (1987-12-01), Watanabe
patent: 4751566 (1988-06-01), Pilot

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