Gamma correction device in image capturing apparatus

Details Gamma correction device in image capturing apparatus Gamma correction device in image capturing apparatus

2004-03-29

2008-12-16

Vu, Ngoc-Yen T (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S251000

Reexamination Certificate

active

07466352

ABSTRACT:
A gamma correction device performs gamma correction on an input signal from an image capturing element based on at least one correction curve having a predetermined input-output characteristic in an image capturing apparatus. The correction curve is composed of a logarithmic curve whose slope at the origin is 5.0 or less or a composite of a curve segment lying from the origin to a predetermined level of an input signal complying with the ITU-709 standard and a logarithmic curve segment lying above the predetermined level of the input signal, wherein both curve segments are continuously combined and have the same slope at the predetermined level.

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