Color image processing method and apparatus

Details Color image processing method and apparatus Color image processing method and apparatus

1993-07-14

1995-05-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

Color correction

358523, 3589091, H04N 308, H04N 5225

Patent

active

054145376

ABSTRACT:
A color image of an object is processed so that the processed image accurately portrays the colors of the object regardless of varying exposure conditions. An object and a color chart that is comprised of a plurality of color chips having known colorimetric parameters are imaged under the same predetermined exposure conditions. Then, colorimetric parameters are determined for each imaged color chip of the imaged color chart. A correlation, between the known and the determined colorimetric parameters, is computed and, on the basis of the computed correlation, the color of the imaged object is corrected.

REFERENCES:
patent: 4929978 (1990-05-01), Kanamori et al.
patent: 5267030 (1993-11-01), Giorgianni
patent: 5339176 (1994-08-01), Smilansky

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