Patent ID: 8958125
Filing Date: 2015-02-17
Classification: G06K,H04N

Abstract:
1. A calibration apparatus for an image forming apparatus which executes multiple feedbacks to a gray balance of a color value of a printed material by a correction of a color conversion processing of said image forming apparatus based on a measurement result of a color value of the printed material printed by said image forming apparatus, and executes calibration by applying the correction of said color conversion processing at any one of feedbacks to the correction of the color conversion processing of said image forming apparatus according to a selection by a user, the calibration apparatus comprising: a calculation unit for calculating a color deviation by subtracting a target value from each value on the two orthogonal axes not including brightness of a color coordinate system based on a measured color value of said printed material respectively; and a display unit for displaying said color deviation with respect to each gray balance at said feedback such that the number of times of inversions of a sign of said color deviation calculated by said calculation unit and a variation width of said color deviation when the sign of said color deviation is inverted can be detected.