<p>An image processing apparatus that performs resolution conversion on image data to output to a display unit includes a resolution converting unit configured to perform resolution conversion on the image data to generate pixel data having a resolution a times as high as a resolution of the display unit, where a>1; an image processing unit configured to perform an image processing on the pixel data; and a decimation unit configured to decimate the pixel data on which the image processing has been performed, to have a resolution equal to or lower than the resolution of the display unit, and to output decimated data to the display unit.</p>