An Image correction device for detecting an image area having movement
according to an image signal, and providing the image signal with image
correction and switching correction methods according to a control
signal. The image correction device further detects the boundary area of
the image area having movement; detects an image area with great
gradational change by comparing gradation of image signals corresponding
to adjoining pixels; and provides the boundary area of the image area
having movement with a diffusion process in an area excluding the image
area with great gradational change. The correcting methods performed by
the image correcting device can be switched according to the movement
signal, thereby improving image correction.