Image apparatus and method for compensating for high and low...

Details Image apparatus and method for compensating for high and low... Image apparatus and method for compensating for high and low...

2003-06-17

2008-10-28

Misleh, Justin P (Department: 2622)

Television

Camera, system and detail

Optics

C348S254000

Reexamination Certificate

active

07443442

ABSTRACT:
A detecting section for detecting a high-luminance object signal is provided. By using resulting detection data, an exposure control is performed so that the white levels of high-luminance objects do not become unduly high. Low-luminance objects are blackened under such imaging conditions. A gamma correction circuit is provided that can make the low-luminance objects appear good by compensating for the blackening. A control of changing the characteristic of the gamma connection circuit in real time in accordance with the object condition is performed, whereby the luminance level is raised in a low-luminance range. As a result, when wide-dynamic-range objects including the high-luminance objects and the low-luminance objects are shot, unduly high white levels of high-luminance objects and blackening of low-luminance objects are prevented and a good image is thereby produced.

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patent: 07-023287 (1995-01-01), None

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