An image processor includes an image processing section, an enlargement processing section, and a controller. When image data to be output from an image output section, including a second predetermined number of pixels, to which image processing has been applied, is generated on the basis of image data input to an image data input unit, including a first predetermined number of pixels smaller than the second predetermined number, the controller controls the enlargement processing section to generate image data including a third predetermined number of pixels larger than the first predetermined number and smaller than the second predetermined number, on the basis of the image data input to the image data input unit, including the first predetermined number of pixels; controls the image processing section to apply image processing to the image data including the third predetermined number of pixels, generated by the enlargement processing section; and controls the enlargement processing section to generate the image data including the second predetermined number of pixels, on the basis of the image data including the third predetermined number of pixels, to which the image processing section has applied image processing.