A T.V. type of analogue image processor using a scan-converting storage tube is described. In this processor, the pictures pre-processed by video delay lines and multipliers in an image-serial and aperture-parallel manner are superimposed successively on the target surface of the tube in an image-parallel and aperture-serial manner. It is shown theoretically and experimentally that when the image-serial and aperture-parallel pre-processing is applied to the well-separated groups of subdivided aperture-weights, the above processing method becomes very effective. Some experimental results of restoration of defocused images are presented, showing that the quality of restored images is comparable with those obtained by digital computer.