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1.发明申请公开(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 。
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公开(公告)号：US20240399739A1
公开(公告)日：2024-12-05
申请号：US18675889
申请日：2024-05-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： YUTA IKESHIMA , KAZUKI NARUMI , TORU OHNISHI , TOMOKAZU ISHIKAWA , FUMITAKA GOTO , TAKAHISA AKAISHI , YOHEI KOHASHI , YUTARO NAKATSUKA , YOICHI TAKADA , KENJI SHINJO
Abstract: There is provided with an image forming apparatus. A deciding unit decides a discharge amount of a reaction liquid based on a timing at which the reaction liquid is discharged onto a print medium by the image forming apparatus, a timing at which each of inks of not less than two colors is discharged onto the print medium next to the reaction liquid, and a discharge amount of each of the inks of the not less than two colors by the image forming apparatus. A controlling unit controls discharge of the reaction liquid and the inks of the not less than two colors.
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3.发明公开公开(公告)号：US20240106966A1
公开(公告)日：2024-03-28
申请号：US18472905
申请日：2023-09-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： NAOYA TAKESUE , FUMITAKA GOTO
CPC classification number: G06K15/188 , G06K15/005 , G06K15/027 , G06K15/102
Abstract: There is a possibility that the accuracy of color adjustment decreases due to high-frequency density unevenness on a test chart that is used in a case where sensor reading characteristics are obtained. The present disclosure solves this by correction processing (generating a correction table for sensor shading correction processing) of a reading sensor configuring a scan unit after removing high-frequency density unevenness in advance by performing color adjustment processing (head shading correction processing).
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Patent Agency Ranking
公开(公告)号：US20230241902A1
公开(公告)日：2023-08-03
申请号：US18161642
申请日：2023-01-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： FUMITAKA GOTO , TOMOKAZU ISHIKAWA , AKITOSHI YAMADA
IPC: B41J2/355
CPC classification number: B41J2/355
Abstract: A recording apparatus includes a recording head including a plurality of heating elements, a sheet-like recording medium formed of a plurality of laminated color-developing layers for developing a plurality of colors. A first condition is satisfied when a subsequent pixel, located at the same position as a target pixel to be recorded following the target pixel, is a pixel for developing a color of a bottom color-developing layer of the recording medium. In a case where a value of the target pixel in the image data is a predetermined value and does not satisfy the first condition, the pulse control unit controls the pulse so that a thermal energy to be applied to the recording medium by the recording head in forming the target pixel is lower than if the first condition is satisfied.
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公开(公告)号：US20250144931A1
公开(公告)日：2025-05-08
申请号：US18933489
申请日：2024-10-31
Applicant: CANON KABUSHIKI KAISHA
Inventor： FUMITAKA GOTO , TOMOKAZU ISHIKAWA , YUTA IKESHIMA , TAKAHISA AKAISHI
Abstract: When a foaming promotion component is applied to a recording medium including a foaming layer containing foamable particles to foam, a forming height of an edge of a forming region may decrease. An image processing apparatus detects an edge pixel located inside the forming region at a border of the foaming region with a non-foaming region and increases an amount of application of the foaming promotion component, thereby being able to prevent a decrease in the forming height.
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公开(公告)号：US20250010526A1
公开(公告)日：2025-01-09
申请号：US18758354
申请日：2024-06-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： TOMOKAZU ISHIKAWA , FUMITAKA GOTO , YUTA IKESHIMA , TAKAHISA AKAISHI
Abstract: A recording apparatus controls a color difference caused by a degree of foaming of foaming particles in a case of forming a recording product including a convex structure that is formed by causing the foaming particles to foam, by determining application amounts of colored liquids so that a larger amount is applied to a region that is caused to foam in a larger degree even when the colored liquids indicate the same color.
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7.发明公开公开(公告)号：US20230391106A1
公开(公告)日：2023-12-07
申请号：US18326980
申请日：2023-05-31
Applicant: CANON KABUSHIKI KAISHA
Inventor： TOMOKAZU ISHIKAWA , FUMITAKA GOTO , AKITOSHI YAMADA
CPC classification number: B41J2/3558 , B41J2/362
Abstract: A data processing apparatus includes a plurality of heat-generating elements configured to apply different heating energies to a print medium in which a plurality of color development layers which develop colors different from each other upon receipt of the different heating energies are laminated. In addition, a printing apparatus includes: an obtaining unit configured to obtain a heat-generating characteristic of each of the plurality of heat-generating elements; and a deriving unit configured to derive a correction value for correcting print data based on a color development heating characteristic of each of the plurality of color development layers and the heat-generating characteristic of each heat-generating element, the print data causing each heat-generating element to generate the heating energy based on image data corresponding to a pixel.
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公开(公告)号：US20230264486A1
公开(公告)日：2023-08-24
申请号：US18172072
申请日：2023-02-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： FUMITAKA GOTO , TOMOKAZU ISHIKAWA , AKITOSHI YAMADA
IPC: B41J2/335
CPC classification number: B41J2/335
Abstract: To prevent an insufficient development density of pixels with which a high-density image is recorded. Thermal energy to be applied to a pixel of interest is increased if a pixel immediately subsequent to the pixel of interest is one to which energy not causing heat propagation to the pixel of interest is applied.
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