1. An evaluation apparatus for evaluating the color reproducibility of a device which processes a color image, comprising: calculation means for calculating at least one of color differences and metrics from the colorimetric values of a reference image and the calorimetric values of an image to be evaluated, for a plurality of input evaluation colors; and computation means for computing a plurality of color-evaluation scales indicating a color-reproduction precision of the image to be evaluated, according to at least one of the calculated color differences and metrics.