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    PLATEMAKING METHOD, PLATEMAKING SYSTEM, AND CAN BODY
    1.
    发明公开
    PLATEMAKING METHOD, PLATEMAKING SYSTEM, AND CAN BODY 审中-公开

    公开(公告)号：EP4299318A1

    公开(公告)日：2024-01-03

    申请号：EP22784362.0

    申请日：2022-02-22

    申请人： Toyo Seikan Co., Ltd.

    发明人： SAITO, Yukiko ,  NAGATSUKA, Ryota ,  YAMAMOTO, Kenichiro

    IPC分类号： B41C1/10 ,  B41C1/12 ,  B41C1/18 ,  B41M1/02 ,  B41M1/08 ,  G06T1/00 ,  H04N1/405 ,  H04N1/52

    摘要： The purpose of the present invention is to make a printing plate that suppresses occurrence of moire while securing a wide color range only with a process color and that is able to suppress turbidity of ink. Provided is a platemaking method for making a printing plate that can express a color by overprinting dots of at least three colors among a plurality of process colors, wherein overprinting of two colors among the at least three colors is performed in a knockout process in which a void dot is formed in one of the two colors and a dot of the other color is overprinted at a position of the one color, overprinting of the remaining color among the at least three colors and the two colors is performed by a mixing process in which at least a part of a dot of the remaining color is put on the dot of the one color and/or the dot of the other color, and the remaining color includes at least white.

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
    4.
    发明公开
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM 审中-公开

    公开(公告)号：EP3944602A1

    公开(公告)日：2022-01-26

    申请号：EP21184177.0

    申请日：2021-07-07

    申请人： CANON KABUSHIKI KAISHA

    发明人： MORIBE, Shoei ,  ISHIKAWA, Hisashi

    IPC分类号： H04N1/405 ,  H04N1/52

    摘要： An apparatus comprises means for generating gradation data corresponding to an achromatic color generated by combining two or more colors among a plurality of colors, for an excess amount of a total gradation value exceeding a predetermined value, the total gradation value being a sum of gradation values of the plurality of colors used for recording a pixel of interest, and generating gradation data corresponding to the plurality of colors, based on the generated gradation data corresponding to the achromatic color; and means for quantizing the gradation data generated by the first generating means, and generating data to control recording of dots corresponding to the pixel of interest. The predetermined value is a gradation value indicating whether or not to record the dots in an overlapping manner, in case that the dots corresponding to the total gradation value are recorded.

    ERROR DIFFUSION
    7.
    发明公开
    ERROR DIFFUSION 审中-公开

    公开(公告)号：EP3409005A1

    公开(公告)日：2018-12-05

    申请号：EP16703936.1

    申请日：2016-01-29

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： MOROVIC, Jan ,  MOROVIC, Peter

    IPC分类号： H04N1/52

    CPC分类号： G06F3/1208 ,  B33Y50/00 ,  G06F3/1219 ,  G06F3/1254 ,  H04N1/52

    摘要： In an example, a method includes identifying, within data for use in printing, a first element set associated with a first print addressable area. The first element set may include at least one element, and each element of the set may be associated with a print material or print material combination. An element may be selected from the first element set and assigned to the first print addressable area. A second print addressable area may be identified as a candidate print addressable area for error diffusion, the second print addressable area being associated with a second element set. Any common elements of the first element set and the second element set may be identified and, if at least one common element is identified, an error associated with the selection of the element from the first element set may be diffused to the at least one common element.

    HALFTONE SCREENS
    8.
    发明公开
    HALFTONE SCREENS 审中-公开

    公开(公告)号：EP3357225A1

    公开(公告)日：2018-08-08

    申请号：EP15777903.4

    申请日：2015-09-29

    申请人： HP INDIGO B.V.

    发明人： FRANK, Tal ,  HAIK, Oren ,  KELLA, Dror ,  DAGAN, Ram ,  LIMONOV, Marina

    IPC分类号： H04N1/52

    CPC分类号： H04N1/52 ,  B41F15/10 ,  H04N1/405

    摘要： An example system includes a color engine to separate an image into a plurality of color components. The system also includes a halftone engine to generate a plurality of halftone images based on the plurality of color components and a plurality of halftone screens. For each halftone screen, the halftone cell centers for that halftone screen occur at regular or semi-regular distances relative to a dot pitch. The plurality of halftone screens forms a high frequency moire pattern when the halftone screens are overlaid on each other. Each of the halftone screens have a granularity metric less than a threshold.

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    10.
    发明公开
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM 有权
    图像处理装置，图像处理方法和程序

    公开(公告)号：EP3035663A1

    公开(公告)日：2016-06-22

    申请号：EP15003591.3

    申请日：2015-12-16

    申请人： Canon Kabushiki Kaisha

    发明人： Kato, Minako ,  Yanai, Yumi ,  Kato, Masao

    IPC分类号： H04N1/405 ,  H04N1/52

    摘要： An image processing apparatus has a data acquisition unit(301) that acquires first multi-valued data for a first ink that is not black ink and second multi-valued data for a second ink that is black ink; a threshold value acquisition unit (305) that acquires a threshold value from a threshold value matrix (310); an offsetting unit (309) that offsets at least one of the threshold value and the second multi-valued data; and a generating unit (306) that generates first quantized data for the first ink by comparing the first multi-valued data and the threshold value, and generate second quantized data for the second ink by comparing the second multi-valued data and the threshold value with offset by the offsetting unit(309). Dispersibility of dots printed at positions corresponding to threshold values from a minimum value to a predetermined value is higher than that corresponding to threshold values except from the minimum value to the predetermined value.

    摘要翻译： 一种图像处理装置具有数据获取单元（301），该数据获取单元（301）获取非黑色墨水的第一墨水的第一多值数据以及黑色墨水的第二墨水的第二多值数据; 阈值取得部（305），其从阈值矩阵（310）取得阈值; 偏移单元（309），偏移阈值和第二多值数据中的至少一个; 和生成单元（306），其通过比较第一多值数据和阈值来生成第一墨的第一量化数据，并且通过比较第二多值数据和阈值来生成第二墨的第二量化数据 并由偏移单元（309）抵消。 在对应于阈值的位置处从最小值到预定值打印的点的分散度高于除了从最小值到预定值之外的对应于阈值的点的分散度。