Image processing apparatus, image processing method and image processing program

Abstract

It is an object of the invention to provide a technique for preventing image quality deterioration of a print image involved in adjustment of color conversion parameters in image formation processing. An image processing apparatus includes: a change information acquiring unit that acquires, when first brightness setting information is changed, information on the change, the first brightness setting information defining, in printing a color that can be represented by color materials of plural colors, brightness that should be represented using the color materials; a calculating unit that calculates, on the basis of the change information acquired by the change information acquiring unit, information on second brightness setting information defining, in printing a color represented only by a black color material, brightness that should be represented using the color material, the second brightness setting information making it possible to print an image of substantially the same brightness as an image printed using the first brightness setting information after the change; and a setting information changing unit that changes, on the basis of the information calculated by the calculating unit, setting content of the second brightness setting information.