Image change detecting apparatus and image change detecting method, image encoding apparatus and information recording medium having image change detecting program recorded in computer readable manner

摘要

There are provided an intra-field dispersion value detecting portion for detecting each of the intra-field dispersion values in each field image; an intra-field average DC level detecting portion for detecting each of the intra-field average DC levels in each field image; and a host CPU for detecting the presence or absence of an occurrence of a fade change based on a change of the detected intra-field dispersion value and a change of the detected intra-field average DC level. In this manner, there can be provided an image change detecting apparatus capable of precisely detecting a fade change contained in image information to be encoded upon encoding using an MPEG system.