1. An image processing apparatus comprising: a color paper/color ink register registering information on m kinds of color papers and information on n kinds of color inks, both which are usable for multicolor-printing a multicolor original image, in a color paper/color ink list, where the numbers m and n are natural numbers, respectively; a color combinator listing up all combinations of k kinds of color papers, arbitrarily selected from the m kinds of color papers, and l kinds of color inks, arbitrarily selected from the n kinds of color inks, where the numbers k and l are natural numbers that satisfy k≦m and l≦n, respectively; a color image creator creating color images colored in given image data corresponding to the multicolor original image for each combination; and a coloration selector selecting a coloration of a color image, selected by a user from among the color images, as a coloration for actually multicolor-printing the multicolor original image.