IMAGE SIGNAL PROCESSING APPARATUS AND METHOD

This invention is to enable, at low cost, image display with little line flicker based on an interlaced image signal and satisfactory movie display characteristics. The first de-interlace mode in which interlaced scanning line signals in the consecutive odd- and even-numbered fields are received by storage means, and the scanning line signals in the consecutive odd- and even-numbered fields are alternately read out to perform de-interlacing, and the second de-interlace mode in which scanning line signals in the odd- or even-numbered field are read out in units of fields and magnified in the vertical direction to perform de-interlacing are prepared. The scanning line signals are compared between the fields to determine whether the signal is a movie or a still image. When it is determined that the signal is a still image, the signal is displayed on a display device using a non-interlaced signal obtained in the first de-interlace mode. When it is determined that the signal is a movie, the signal is displayed on the display device using a non-interlaced signal obtained in the second de-interlace mode.