CORRECTION DATA CALCULATION DEVICE, IMAGE CORRECTION DEVICE, IMAGE FORMATION APPARATUS, CORRECTION DATA CALCULATION PROGRAM, AND IMAGE CORRECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a correction data calculation device and the like which can calculate correction data for correcting banding more accurately in comparison to a case of adopting a trigonometric function in a given cycle.;SOLUTION: A correction data calculation device includes: a pixel array data acquisition unit 21 which acquires pixel array data composed of a sequence of pixel values of pixels constituting a pixel array on a uniform image for correction data generation; a least square approximation calculation unit 224 which calculates a suitable trigonometric function having a cycle, amplitude and phase suitable to the cycle fluctuation of the pixel array data by applying the pixel array data to the trigonometric function and performing least square approximation calculation with the cycle, amplitude and phase of the trigonometric function as a variable; and a correction data calculation unit 22 which calculates correction data for cycle fluctuation correction of the pixel array data in accordance with the suitable trigonometric function.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2017,JPO&INPIT