Color processing apparatus and method thereof
AssigneeCanon Kabushiki Kaisha
InventorSusumu Shimbaru
Life of this patent
Estimating the term…
Abstract
In order to match the color appearance of the display image on a monitor to that of a print image, the white point of the monitor and that of the viewing light upon viewing the print image are obtained, and a white point upon viewing the display image on the monitor and that upon viewing the print image are calculated using the white point of the monitor, that of the viewing light, and a reference white point. An input color is corrected using the calculated white points. At this time, as the reference white point, a white color which the human visual system perceives as white is used.
Claims12
A color processing apparatus for matching a color appearance of a display image on a monitor to a color appearance of a print image, comprising:
- an obtaining section, arranged to obtain a white point of the monitor and a white point of a viewing light upon viewing the print image;
- a calculator, arrange to calculate a white point upon viewing the display image on the monitor and a white point upon viewing the print image using the white point of the monitor, the white point of the viewing light, and a reference white point;
- and
- a color corrector, arranged to correct an input color using the white points calculated by said calculator,
- wherein the reference white point indicates a white color which a human visual system perceives as white.
A color processing method of matching a color appearance of a display image on a monitor to a color appearance of a print image, comprising the steps of:
- obtaining a white point of the monitor and a white point of a viewing light upon viewing the print image;
- calculating a white point upon viewing the display image on the monitor and a white point upon viewing the print image using the white point of the monitor, the white point of the viewing light, and a reference white point;
- and
- correcting an input color using the white points calculated by said calculator,
- wherein the reference white point indicates a white color which a human visual system perceives as white.
A computer-readable storage medium storing a computer-executable program causing a computer to perform a color processing method, the method comprising the step of:
- obtaining a white point of the monitor and a white point of a viewing light upon viewing the print image;
- calculating a white point upon viewing the display image on the monitor and a white point upon viewing the print image using the white point of the monitor, the white point of the viewing light, and a reference white point;
- and
- correcting an input color using the white points calculated by said calculator,
- wherein the reference white point indicates a white color which a human visual system perceives as white.
Dependencies are inferred from the claim text.