Automatic exposure control apparatus

Details Automatic exposure control apparatus Automatic exposure control apparatus

1992-08-12

1994-10-04

Oberley, Alvin E.

Television

Camera, system and detail

Optics

348362, H04N 5238

Patent

active

053530586

ABSTRACT:
Disclosed is an automatic exposure control apparatus so adapted that a photographic subject such as a human being can be photographed appropriately even if the subject is backlighted or excessively front-lighted. The control apparatus divides a frame into a plurality of areas and detects the backlighted state or excessively front-lighted state based upon the luminance of each of these areas. In case of backlighting or excessive front-lighting, an exposure correction of the entire frame is performed in conformity with the luminance of an area in which a flesh color is present in the vicinity of the center of the frame.

REFERENCES:
patent: 4987482 (1991-06-01), Imai et al.
patent: 5049983 (1991-09-01), Matsumoto
patent: 5065247 (1991-11-01), Haruki
patent: 5065248 (1991-11-01), Homma

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