公开(公告)号：US20140055518A1

公开(公告)日：2014-02-27

申请号：US14070366

申请日：2013-11-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： SENICHI SAITO ,  RYOSUKE IGUCHI ,  NOBUTAKA MIYAKE ,  TOHRU IKEDA ,  AKITOSHI YAMADA ,  MITSUHIRO ONO ,  FUMITAKA GOTO ,  HIDETSUGU KAGAWA ,  TOMOKAZU ISHIKAWA ,  JUNICHI NAKAGAWA

IPC: B41J2/205

CPC classification number: B41J2/2052 ,  B41J2/2146 ,  H04N1/6038

Abstract: Provided are an image processing apparatus and an image processing method capable of reducing color unevenness due to variations in ejection characteristics among a plurality of nozzles when printing an image using a plurality of inks. To that end, a first image which is made up a color with noticeable color unevenness and similar colors is printed onto a print medium. The user then specifies a color and a nozzle position where color unevenness has occurred. On the basis of these results, parameters are set for a correction table referenced by an MCS processor. In so doing, it becomes possible to address the factor causing the color unevenness, and mitigate the effects of color unevenness in a focused way without incurring increases in processor load, memory requirements, or processing time as compared to the case of calibrating all lattice points.

Abstract translation: 提供了一种图像处理装置和图像处理方法，当使用多种油墨打印图像时，能够减少由于多个喷嘴之间的喷射特性的变化引起的颜色不均匀。 为此，在打印介质上打印出由具有明显的颜色不均匀性和相似颜色的颜色构成的第一图像。 然后，用户指定出现颜色不均匀的颜色和喷嘴位置。 基于这些结果，为由MCS处理器引用的校正表设置参数。 在这样做时，与校准所有格子点的情况相比，可以解决导致颜色不均匀的因素，并且以聚焦方式减轻颜色不均匀的影响，而不会导致处理器负载，存储器要求或处理时间的增加 。