To provide an image processor which flexibly corrects a profile by absorbing physical characteristics of different output forms of the same printer and parts constituting the printer.

The image processor is provided with color conversion means 31 and 32 for color output device wherein past history information of color spaces of inputs and those of outputs, position information in an output medium, and combination information of image output modes of the output medium are held, and the image processor has a function to generate printer profiles 41, 42, and 43 for outputting an image which absorbs time and variance in physical characteristics of the printer.