Patent ID: 7679784
Filing Date: 2010-03-16
Classification: G06K

Abstract:
1. A method for setting a color tone for use in printing a monotone image, comprising the steps of: (a) displaying a tone setting screen that includes a tone specifying area for specifying a color tone for a monotone image with a single specification point; and (b) setting the color tone of the monotone image according to the position of the specification point which is specified in the tone specifying area, wherein (i) the tone specifying area is defined on an a*-b* plane in L*a*b* color space, (ii) the tone specifying area includes three reference tone points having a same L* value, the three reference tone points representing a warm tone, a neutral tone, and a cool tone, which are disposed linearly in advance within the tone specifying area, and wherein, when a light blue print medium is used in the printing, a distance ΔEn-w between the reference warm tone point and the reference neutral tone point is set larger than a distance ΔEn-c between the reference neutral tone point and the reference cool tone point.