Patent ID: 7032989
Filing Date: 2006-04-25
Classification: H04N

Abstract:
1. An image processing method for determining a conversion relationship by using patches, the conversion relationship relating to a generation of color material data for an image output apparatus that outputs an image by using a plurality of kinds of color material including a plurality of color materials of a same color but differing in concentration, said method comprising the steps of: providing a maximum total color material use amount which is determined by taking into account an adhesion characteristic of each of the plurality kinds of color material to a printing medium used when the image output apparatus outputs the patches; determining, for each of the patches, a combination of data for the plurality of kinds of color material constituting a patch within a range of the maximum total color material use amount; and determining a predetermined conversion relationship relating to the generation of color material data of the plurality of kinds of color material including a plurality of color materials of a same color but differing in concentration, on the basis of colorimetric values of the patches which are outputted based on the determined combinations of data for the plurality of kinds of color material for the patches.