Video camera having a gamma -correction circuit for correcting level characteristics of a luminance signal included in a video signal

摘要

A detection circuit for detecting a color temperature of the ambient light of an object is provided in a video camera. A gamma -correction circuit for subjecting a luminance signal Y obtained by processing an output signal of a solid-state imaging device to gamma -correction with a fixed gamma coefficient changes the correction level of the luminance signal Y in accordance with the fluctuation of the color temperature detected by the detection circuit. As a result, it is prevented that in a low color temperature, a red portion of a reproduced image becomes abnormally bright. Further, there is provided an illuminance detection circuit. In a low illuminance, the correction level of the gamma -correction circuit is reduced to prevent mixture of the noise.