an image display method by which a presence of a variation in a color signal in video , a variation in brightness data in video , a bit rate of video reproduction , an audio signal , a variation in a bit rate of video reproduction , or caption data is checked , whereby it is possible to display a significant image whose contents can be grasped by a user by skipping over a monochrome image such as a black or white image whose contents cannot be grasped by the user , even if a moving image starts from such a monochrome image .