An image display device includes: an image input unit having a plurality of channels; a generation unit which processes input data inputted to each of the plurality of channels and generates display image data for displaying an image of one frame; and a detection unit which detects a missing of input data on each of the channels. If a missing of input data is detected by the detection unit, the generation unit executes interpolation processing to interpolate and generate an image feature quantity of an unset pixel which is a pixel forming the display image data and whose image feature quantity cannot be set due to the missing of input data. In the interpolation processing, the image feature quantity of the unset pixel is interpolated with an image feature quantity of a reference pixel selected from pixels other than the unset pixel.