An image processing apparatus includes a storage unit in which plural colorimetric values obtained by measuring a target-color image having a glittering characteristic from plural directions are stored for each target color; a color information receiving unit that receives color information for specifying a target color to be printed; a display controller that reads out plural colorimetric values stored corresponding to the target color of the color information from the storage unit and causes the plural colorimetric values to be displayed on a display; a change receiving unit that receives a change of the plural colorimetric values displayed on the display by the display controller; and a converter that converts the plural colorimetric values reflecting the change into color values including a value indicative of an amount of a glittering color material and a value indicative of an amount of a color material other than the glittering color material.