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    • 7. 发明授权
    • System and method for selecting the best set of devices for rendering color documents
    • US07352491B2
    • 2008-04-01
    • US10641205
    • 2003-08-14
    • Raja BalaGaurav SharmaRobert J. Rolleston
    • Raja BalaGaurav SharmaRobert J. Rolleston
    • H04N1/40
    • H04N1/603H04N1/6058
    • The system for selecting a best device for rendering a color document involves first determining the types of color data included in the color document to be printed. Once the type of color data has been determined, the color characteristics are matched against the strengths of the available output devices to obtain a list of devices best suited for this particular color print job. At least one device from the list of best devices is selected and the color document is rendered onto the selected device. Preferably, the types of color data involved are determined by the mix of defined colorimetry and undefined colorimetry in the color document. Alternatively, the types of color data are determined by analyzing the colorspaces in the document (i.e., RGB, CMYK, LAB, XYZ, etc.), and the embedded profiles, if any, in the document (e.g., sRGB, SWOPCMYK, Euroscale). In the instance wherein a number of devices match the criteria for selection, only those devices which honor embedded color profiles are selected for documents containing embedded profiles. Alternatively, only those devices are selected that produce a consistent rendering across multiple color spaces and profiles for documents with a mix of color spaces and profiles. Selecting the best device may also depend on whether the type of print job is considered to be Job-Balancing or Job-Splitting. With Job-Balancing, at least one of the metrics is used: (i) Intersection Gamut Volume, (ii) Gamut Similarity, or (iii) Mismatch Between Document Colors and Intersection Gamut for device selection. With Job-Splitting, at least one of these metrics are used: (i) Individual Gamut Volume, or (ii) Mismatch Between Document Colors and Device Gamut. Colorimetric definition of the selected colors can be retrieved from either an embedded source profile or by default and mapping the colors to the output gamut.
    • 8. 发明授权
    • System and method for obtaining color consistency for a color print job across multiple output devices
    • 用于在多个输出设备上获得彩色打印作业的颜色一致性的系统和方法
    • US08120812B2
    • 2012-02-21
    • US10640835
    • 2003-08-14
    • Gaurav SharmaRaja BalaRobert J. Rolleston
    • Gaurav SharmaRaja BalaRobert J. Rolleston
    • G06F15/00
    • H04N1/6058H04N1/603
    • A method for maintaining color consistency in an environment of networked devices is disclosed. The method involves identifying a group of devices to which a job is intended to be rendered; obtaining color characteristics from devices in the identified group; modifying the job based on the obtained color characteristics; and rendering the job on one or more of the devices. Modifications are computed by a transform determined by using the color characteristics of the output devices along with the content of the job itself. The method further maps colors in the original job to the output devices' common gamut, i.e., intersection of the gamuts of the individual printers wherein the color gamut of each device is obtained from a device characterization profile either by retrieving the gamut tag or by derivation using the characterization data in the profile.
    • 公开了一种用于在网络设备的环境中维持颜色一致性的方法。 该方法涉及识别旨在呈现作业的一组设备; 从识别组中的设备获得颜色特征; 基于获得的颜色特性修改作业; 并在一个或多个设备上呈现作业。 通过使用输出设备的颜色特性以及作业本身的内容确定的变换来计算修改。 该方法进一步将原始作业中的颜色映射到输出设备的公共色域,即各个打印机的色域的相交,其中通过检索色域标签或通过衍生获得每个设备的色域,从设备表征简档 使用配置文件中的表征数据。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR EDITING COLOR CHARACTERISTICS OF ELECTRONIC IMAGE
    • 用于编辑电子图像颜色特征的方法和装置
    • US20120301023A1
    • 2012-11-29
    • US13116210
    • 2011-05-26
    • Karen M. BraunElizabeth D. WaymanMichael P. KehoeRaja BalaYonghui Zhao
    • Karen M. BraunElizabeth D. WaymanMichael P. KehoeRaja BalaYonghui Zhao
    • G06K9/00
    • G06T11/001G06T5/009G06T5/40G06T11/60G06T2207/10024G06T2207/20092
    • A method of editing color characteristics of an electronic image includes: a) receiving an original electronic image at a color editing subsystem; b) analyzing the original electronic image to identify original color characteristics and to identify a recommended set of color editing options, the recommended set of color editing options being less than a complete set of color editing options provided by the color editing subsystem; c) presenting the recommended set to a user via a user interface device; d) receiving a color editing instruction from the user interface device in response to the user selecting a corresponding color editing option from the recommended set; and e) adjusting the original color characteristics to form an adjusted electronic image having adjusted color characteristics based at least in part on the color editing instruction. An apparatus for editing color characteristics of an electronic image is also provided.
    • 编辑电子图像的颜色特性的方法包括:a)在彩色编辑子系统处接收原始电子图像; b)分析原始电子图像以识别原始颜色特征并识别推荐的一组颜色编辑选项,推荐的一组颜色编辑选项小于由颜色编辑子系统提供的一整套颜色编辑选项; c)通过用户界面设备向用户呈现推荐的集合; d)响应于用户从推荐的组中选择相应的颜色编辑选项,从用户界面设备接收颜色编辑指令; 以及e)至少部分地基于所述颜色编辑指令来调整所述原始颜色特征以形成具有调整的颜色特性的经调整的电子图像。 还提供了一种用于编辑电子图像的颜色特性的装置。
    • 10. 发明授权
    • Watermarking
    • 水印
    • US07764403B2
    • 2010-07-27
    • US11634657
    • 2006-12-06
    • Robert P. LoceRaja BalaKaren M. Braun
    • Robert P. LoceRaja BalaKaren M. Braun
    • H04N1/40H04N1/60
    • H04N1/32309H04N1/32299
    • Extended colorant sets are used to hide data or provide a watermark in printed images. Extended set colorants are colorants other than, and in addition to, the standard or common subtractive primary colorants: cyan, magenta, yellow and/or black. Where the extended colorant set supports a plurality of colorant recipes for rendering a given color, watermark data is used to select a colorant recipe from the plurality. As the watermark data to be encoded in the image changes state with image position, alternate colorant recipes or colorant selection functions are selected. The image is rendered based on the alternate colorant recipe selections. Watermark information is encoded in the colorant recipe or colorant selection function selection. Use of the extended colorant sets allows information to be encoded even in portions of an image having colors that do not include a neutral component.
    • 扩展着色剂集合用于隐藏数据或在打印图像中提供水印。 扩展的定色着色剂是除了标准或普通的减色原色着色剂之外的除了以外的着色剂:青色,品红色,黄色和/或黑色。 在延伸着色剂组支持用于渲染给定颜色的多个着色剂配方的情况下,使用水印数据从多个中选择着色剂配方。 当图像中要编码的水印数据用图像位置改变状态时,选择着色剂配方或着色剂选择功能。 基于备选着色剂配方选择渲染图像。 水印信息在着色剂配方或着色剂选择功能选择中进行编码。 使用扩展着色剂组允许即使在具有不包括中性成分的颜色的图像的部分中也可以对信息进行编码。