IMAGE DIFFERENCE DETECTION METHOD AND APPARATUS, SCENE CHANGE DETECTION METHOD AND APPARATUS, AS WELL AS IMAGE DIFFERENCE VALUE DETECTION METHOD AND APPARATUS

摘要

From two image data, a part of the data is extracted as the data on an analysis object area (S702, S704). An image difference detection step (S707) for detecting the image difference between two images according to the difference between image characteristic values of the analysis object area is provided and two analysis object areas of the image data have the same size. When the image difference is not detected, in an area extraction step, a part or whole of data of the area which has not been include in the analysis object area among the image data up till then is extracted and added (S704) and in this way, the analysis object area may be expanded (S707). A scene change in an image and a video can be performed at high speed.