Color video camera with color reproducibility compensation for d

Details Color video camera with color reproducibility compensation for d Color video camera with color reproducibility compensation for d

1990-04-25

1991-08-27

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 29C, H04N 973

Patent

active

050438042

ABSTRACT:
A color reproducibility compensation circuit invention is adapted, when a large amount of A.C. component is included in a light source as when it is discharge lamp illumination including white fluorescent lamp illumination, to obtain a control signal for color reproducibility compensation through table look-up with an output of a divider used as the look-up valve, whereby a color reproducibility compensation circuit is controlled. Thus, it is made possible to realize a color video camera capable, even under discharge lamp illumination, of providing a video image in which optimum color reproduction equivalent to that obtained in fine afternoon weather is achieved.

REFERENCES:
patent: 4574303 (1986-03-01), Hashimoto et al.
patent: 4646161 (1987-02-01), Tsuchiya et al.

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