Patent Number: 8,089,524

Title: Flicker correction apparatus, flicker correction method, and image sensing apparatus

Abstract: A flicker detection region in which an image signal has values relating to luminance and colors within predetermined ranges is extracted from a plurality of flicker detection regions allocated in the vertical and horizontal directions of an image. A flicker component is detected using the luminance information of the image signal in the extracted flicker detection region. A correction value to correct the flicker component is generated from the detected flicker component. This makes it possible to accurately correct, using a simple arrangement, a flicker component contained in an image sensed under a light source whose brightness periodically changes even when the object or the image sensing apparatus moves.

Inventors: Urisaka; Shinya (Tokyo, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: H04N 5/228 (20060101)

Expiration Date: 2020-01-03 0:00:00