| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation device, a calibration program, and a calibration system, capable of performing calibration at high precision.SOLUTION: A reference sheet in which a reference chart containing a plurality of color patches and a plurality of reference regions are depicted as well as a test sheet in which a test chart containing a plurality of color patches and a plurality of reference regions are printed by a printer, are simultaneously imaged with a digital camera to generate an image. A dedicated printer detects decrease amount of peripheral light in the image caused by the digital camera for each patch, corrects a color value of a patch in the image based on the decrease amount of peripheral light, and then corrects gradation characteristic of the printer based on the corrected color value. It detects the decrease amount of peripheral light for each patch based on the position and brightness of a plurality of reference regions in the image and the position of patch in the image (S165). |
