VIDEO SIGNAL PROCESSING METHOD AND VIDEO SIGNAL PROCESSING UNIT

摘要

PROBLEM TO BE SOLVED: To provide a video signal processing unit that conducts processing for discriminating the occurrence of flashing, scene changes or fading to a video signal with a small data processing quantity. SOLUTION: The video signal processing unit is provided with: a screen divider 101, that applies screen division processing which divides a field screen into 4 regions to input video data Vin; and a screen characteristic detector 110a that discriminates the occurrence of a scene change between adjacent field screens, when the number of division regions (discrimination object regions) showing a large image change of the degree decided by a 1st threshold Ath1 or greater is a 2nd threshold or greater, on the basis of the difference data of image data between the adjacent field corresponding to individual division screens and discriminates the occurrence of flashing in the discrimination object region, when the number of the division regions (discrimination object regions) showing the large image change is smaller than the 2nd threshold.