Color selecting method, image processing method, image processing apparatus, and computer-readable recording medium storing program

摘要

It is determined whether an entered designated color is a color within a gamut of a printing machine or not. If the designated color is judged as being not a color within the gamut, then the designated color is mapped to converted colors within the gamut according to a plurality of gamut mapping processes. One of the gamut mapping processes which corresponds to one of the converted colors is selected. If the designated color is judged as being a color within the gamut, the designated color is set as a reference color. If the designated color is judged as being not a color within the gamut, then the selected one of the converted colors is set as the reference color.

主权项

1. A color selecting method of printing a color chart having a plurality of color patches of a reference color and colors close to the reference color with a printing machine and selecting one of the color patches whose color is closest to a designated color from the color chart, comprising:
an entering step of entering color values of the designated color; a determining step of determining whether the designated color whose color values are entered is a color within a gamut of the printing machine or not; a mapping step of mapping the designated color to converted colors within the gamut according to a plurality of gamut mapping processes, if the designated color is judged as being not a color within the gamut; a displaying step of displaying the converted colors as a plurality of candidate colors; a selecting step of selecting one of the displayed candidate colors, depending on a predetermined selection operation; and a setting step of setting the designated color as the reference color if the designated color is judged as being a color within the gamut, and setting the selected one of the candidate colors as the reference color if the designated color is judged as being not a color within the gamut; wherein the gamut mapping processes include a process for employing a different gamut mapping process depending on a color range of the designated color; wherein the plurality of gamut mapping processes is selected from the group consisting of impression matching, lightness matching, saturation matching, and minimum distance.