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    User-preferred reproduction of out-of-gamut spot colors
    2.
    发明授权
    User-preferred reproduction of out-of-gamut spot colors 有权

    公开(公告)号：US11812005B2

    公开(公告)日：2023-11-07

    申请号：US17851079

    申请日：2022-06-28

    Applicant: Eastman Kodak Company

    Inventor： Chung-Hui Kuo ,  Victor Ignacio Ibarluzea ,  Thomas L. Schwartz

    IPC: H04N1/60

    CPC classification number: H04N1/6066 ,  H04N1/6075

    Abstract: A method for reproducing an out-of-gamut spot color includes determining a color gamut for a color printer, and specifying a spot color by color coordinates in a three-dimensional color space. A first target color is determined corresponding to a color having a minimum color difference to the specified spot color, and a second target color is determined corresponding to a color on the color gamut surface having a hue value equal to a hue value of the specified spot color. A path is defined on the color gamut surface connecting the first target color and the second target color, wherein a control parameter is used to specify a relative position along the defined path. A user interface is provided enabling a user to adjust the control parameter to specify an aim color.

    IMAGE PROCESSING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
    6.
    发明申请
    IMAGE PROCESSING APPARATUS, AND NON-TRANSITORY COMPUTER READABLE MEDIUM 有权
    图像处理设备和非计算机可读介质

    公开(公告)号：US20150348238A1

    公开(公告)日：2015-12-03

    申请号：US14519634

    申请日：2014-10-21

    Applicant: FUJI XEROX CO., LTD.

    Inventor： Makoto SASAKI ,  Shota NARUMI

    IPC: G06T5/00 ,  G06T7/40 ,  G06K9/46

    CPC classification number: G06T7/408 ,  G06K9/4652 ,  G06K9/4661 ,  G06T5/008 ,  G06T5/40 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/20208 ,  H04N1/6058 ,  H04N1/6066 ,  H04N1/644

    Abstract: Provided is an image processing apparatus including a color conversion unit that performs color conversion to convert an original image to a luminance image and to a chromaticity image, an illumination image generation unit that generates an illumination image having an illumination component of the luminance image as a pixel value from the luminance image, a reflectance image generation unit that generates a reflectance image having a stabilized reflectance component of the luminance image as a pixel value, a luminance reproduction image generation unit that enhances the reflectance component of the luminance image to generate a luminance reproduction image reproduced with being improved visibility of the luminance image, and an inverse color conversion unit that performs conversion inverse to the color conversion performed by the color conversion unit on the luminance reproduction image and the chromaticity image.

    Abstract translation: 本发明提供一种图像处理装置，包括：颜色转换单元，其执行将原始图像转换为亮度图像和色度图像的颜色转换;照明图像生成单元，其生成具有亮度图像的照度分量的照明图像， 来自亮度图像的像素值，生成具有作为像素值的亮度图像的稳定的反射分量的反射率图像的反射率图像生成单元，增强亮度图像的反射分量以产生亮度的亮度再现图像生成单元 通过提高亮度图像的可见度再现再现图像，以及反色变换单元，其执行与由颜色转换单元对亮度再现图像和色度图像执行的颜色转换相反的转换。

    Printing system and image forming apparatus including defect detection
    9.
    发明授权
    Printing system and image forming apparatus including defect detection 有权
    包括缺陷检测的印刷系统和图像形成装置

    公开(公告)号：US08867095B2

    公开(公告)日：2014-10-21

    申请号：US13561582

    申请日：2012-07-30

    Applicant: Kenji Hyoki ,  Toshiyuki Kazama ,  Masaki Fujise

    Inventor： Kenji Hyoki ,  Toshiyuki Kazama ,  Masaki Fujise

    IPC: H04N1/60

    CPC classification number: H04N1/6066

    Abstract: A printing system includes the following elements. An image forming unit forms an image. An image reader reads an image. A first color converter creates second image data. A second color converter creates fourth image data. A determining unit determines whether a pixel value of each of pixels in the first image data or the second image data is located inside or outside an input color gamut that is readable by the image reader. A correction unit corrects pixels located at the same position as a pixel having a pixel value located outside the input color gamut. An inspection unit performs inspection to find a defect of an image. The correction unit performs correction on the pixels located at the same position as a pixel having a pixel value located outside the input color gamut so that the inspection unit does not detect a difference between the corrected pixels.

    Abstract translation: 打印系统包括以下元件。 图像形成单元形成图像。 图像读取器读取图像。 第一个颜色转换器创建第二个图像数据。 第二个颜色转换器创建第四个图像数据。 确定单元确定第一图像数据或第二图像数据中的每个像素的像素值是否位于图像读取器可读的输入色域的内部或外部。 校正单元校正与具有位于输入色域外部的像素值的像素位于相同位置的像素。 检查单元执行检查以发现图像的缺陷。 校正单元对位于与具有位于输入色域外部的像素值的像素位于相同位置的像素执行校正，使得检查单元不检测校正像素之间的差异。

    Device independent color differences
    10.
    发明申请
    Device independent color differences 审中-公开
    设备独立色差

    公开(公告)号：US20140232923A1

    公开(公告)日：2014-08-21

    申请号：US13772290

    申请日：2013-02-20

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LLP

    Inventor： Wei Koh ,  Melanie Gottwals ,  Nathan Moroney ,  Udi Chatow ,  Gershon Alon

    IPC: G09G5/02

    CPC classification number: G09G5/02 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/462 ,  G01J3/463 ,  G01J3/52 ,  H04N1/6066

    Abstract: In the present disclosure techniques related to display of device independent color differences are described. In examples, a color comparison graphical user interface (GUI) is operated. The GUI displays a color of a sample object. Further, the GUI displays a color of a reference object. Further, the GUI displays a device independent color difference between the sample color and the reference color.

    Abstract translation: 在本公开中，描述了与显示设备无关的色差相关的技术。 在示例中，操作颜色比较图形用户界面（GUI）。 GUI显示示例对象的颜色。 此外，GUI显示参考对象的颜色。 此外，GUI显示样品颜色和参考颜色之间的器件独立色差。

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