FLICKER CORRECTION DEVICE, FLICKER CORRECTION METHOD, AND RECORDING MEDIUM WITH FLICKER CORRECTION PROGRAM RECORDED

摘要

PROBLEM TO BE SOLVED: To provide a flicker correction device which is adapted to the change of illumination to quickly perform flicker correction independently of the frame frequency of an imaging device. SOLUTION: An average value of a picture signal in the horizontal or vertical direction, which is calculated in a picture average value calculation means 2, and a flicker frequency calculated in a flicker frequency calculation means 5 by an AC supply power frequency and the frame frequency of an imaging device are used to extract flicker data by flicker data extraction means 3 and 4. The presence or the absence of a flicker phenomenon is discriminated in accordance with flicker data by a flicker discrimination means 6, and correction is not performed when the absence of a flicker phenomenon is discriminated. A flicker correction extent calculated from flicker data by a flicker correction extent calculation means 8 is used to remove flicker components from picture data stored in a picture memory 9 by a flicker correction means 10. COPYRIGHT: (C)2003,JPO