Patent ID: 7164439

Claim:
A flicker correction apparatus for correcting a flicker component of an image signal obtained by imaging an object using an imaging device, the apparatus comprising: an image average calculation section for calculating an average of the image signal far each line or each group of lines in a horizontal or vertical direction; a flicker frequency calculation section for calculating a flicker frequency using an AC power source frequency and a frame or field frequency of the imaging device; a flicker data extraction section for extracting flicker data using the average of the image signal calculated by the image average calculation section and the flicker frequency calculated by the flicker frequency calculation section; a flicker determination section for determining the presence or absence of a flicker phenomenon using the flicker data; a flicker correction amount calculation section for calculating a flicker correction amount using the flicker data; and a flicker correction section for removing the flicker component of the image signal using the flicker correction amount calculated by the flicker correction amount calculation section and based on the determination by the flicker determination section.