Apparatus and method for transforming the digital representation of a
color input image
    51.
    发明授权
    Apparatus and method for transforming the digital representation of a color input image 失效
    用于变换彩色输入图像的数字表示的装置和方法

    公开(公告)号:US5315380A

    公开(公告)日:1994-05-24

    申请号:US749299

    申请日:1991-08-23

    CPC分类号: H04N1/6025 H04N1/6055

    摘要: A system for converting a first representation of a color input image to a second representation and method for performing same are disclosed. The system includes apparatus for mapping primary axes and overprint axes of a selected color coordinate system to primary axes and overprint axes of a printer color coordinate system of the second representation, thereby to produce primary conversion tables and overprint conversion tables and apparatus for converting the first representation to the second representation utilizing the primary and overprint conversion tables. The system also includes printing apparatus for printing the second representation and for producing an output print, wherein the output print is a reproduction of the color input image within the selected color coordinate system. Furthermore, the system enables selection of operator-selected appearance parameters used to match desired printer conditions in accordance with the appearance parameters.

    摘要翻译: 公开了一种用于将彩色输入图像的第一表示转换为第二表示的系统和用于执行其的方法。 该系统包括用于将所选颜色坐标系的主轴和套印轴映射到第二表示的打印机颜色坐标系的主轴和套印轴的装置,由此产生主转换表和套印转换表以及用于将第一 使用主和套印转换表对第二表示进行表示。 该系统还包括用于打印第二表示和用于产生输出打印的打印装置,其中输出打印是所选色坐标系统内彩色输入图像的再现。 此外,该系统能够根据外观参数选择用于匹配所需打印机状况的操作者选择的外观参数。

    Method and structure for calibrating a computer generated image
    52.
    发明授权
    Method and structure for calibrating a computer generated image 失效
    校准计算机生成图像的方法和结构

    公开(公告)号:US5271096A

    公开(公告)日:1993-12-14

    申请号:US978311

    申请日:1992-11-17

    申请人: Robert L. Cook

    发明人: Robert L. Cook

    IPC分类号: H04N1/407 H04N1/60 G06F15/20

    CPC分类号: H04N1/4078 H04N1/6055

    摘要: A computer imaging system for calibration of scanners and printers. A calibration image is stored and manipulated as desired, and printed out as a resultant calibration picture. The resultant calibration picture is input to the system to create a resultant calibration image. A comparison is made between the original calibration image and the resultant calibration image, yielding calibration data indicating the distortion introduced by the hardware and software combination used in the calibration process. The calibration data is then used in a correction stage wherein a picture is input to the system, anti-distorted utilizing the calibration data, and an output picture provided with the anti-distorted data causing the output picture to appear substantially identical to the input picture. Alternatively, the calibration data is used together with a second set of calibration data generated by comparing an input calibration picture with known accurate data values corresponding to the calibration picture. The second set of calibration data is representative of the distortions caused by the input device only. The first and second sets of calibration data are combined, providing a third set of calibration data which represents distortions introduced by the output device only. The second and third sets of calibration data are used during normal operation of the system to provide computer images adjusted for the distortions which would otherwise be introduced by the input device, and which provide output pictures adjusted for the distortions which would otherwise be introduced by the output device.

    摘要翻译: 用于校准扫描仪和打印机的计算机成像系统。 根据需要存储和操作校准图像,并作为合成的校准图像打印出来。 所得到的校准图像被输入到系统以产生合成的校准图像。 比较原始校准图像和合成的校准图像,得到指示由校准过程中使用的硬件和软件组合引入的失真的校准数据。 校正数据然后被用于校正阶段,其中图像被输入到系统,利用校准数据进行抗失真,以及提供有抗失真数据的输出图像,使得输出图像看起来与输入图像基本相同 。 或者,校准数据与通过将输入校准图像与对应于校准图像的已知精确数据值进行比较而生成的第二组校准数据一起使用。 第二组校准数据仅代表由输入设备引起的失真。 组合第一组和第二组校准数据,提供第三组校准数据,其表示仅由输出装置引入的失真。 在系统的正常操作期间使用第二和第三组校准数据,以提供由输入装置引入的失真调整的计算机图像,并且提供针对否则将被引入的失真调整的输出图像 输出设备。

    Image formation system that generates test data obtains save location and generates performance correction

    公开(公告)号:US09967436B2

    公开(公告)日:2018-05-08

    申请号:US15296946

    申请日:2016-10-18

    发明人: Hiroshi Yamaguchi

    IPC分类号: H04N1/60 H04N1/00

    摘要: An image formation system includes an image formation apparatus that outputs a test chart; and external equipment that generates data for correction of performance of the image formation apparatus based on the test chart output by the image formation apparatus. The image formation apparatus also outputs save location information associated with the test chart. The external equipment transmits the data for performance correction to a location identified by the save location information. The save location information identifies at least a memory device of an apparatus other than the image formation apparatus as a save location to save the data for performance correction. The image formation apparatus corrects performance of the image formation apparatus using the data for performance correction that is obtained from the location identified by the save location information.

    DIGITAL SYSTEM AND METHOD FOR PAINT COLOR MATCHING

    公开(公告)号:US20170213361A1

    公开(公告)日:2017-07-27

    申请号:US15320273

    申请日:2015-06-25

    IPC分类号: G06T7/90

    摘要: A method includes obtaining first color information for each of a plurality of first samples of a first target color with a color measurement device connected to a computing device including a display. A digital color image of at least one first target color is displayed on the display. An offset value for each first target color is determined such that the digital color image of each first target color matches the corresponding first target color on each of the first samples. A second sample including a second target color is scanned to obtain second color information. A processor of the computing device determines, using the offset values of the first target colors, an interpolated offset for the display such that the digital image of the second target color matches the second tar get color.

    IMAGE FORMATION SYSTEM, METHOD FOR CONTROLLING THE SAME, IMAGE FORMATION APPARATUS, AND PROGRAM

    公开(公告)号:US20170111550A1

    公开(公告)日:2017-04-20

    申请号:US15296946

    申请日:2016-10-18

    发明人: Hiroshi Yamaguchi

    IPC分类号: H04N1/60 H04N1/00

    摘要: An image formation system includes an image formation apparatus that outputs a test chart; and external equipment that generates data for correction of performance of the image formation apparatus based on the test chart output by the image formation apparatus. The image formation apparatus also outputs save location information associated with the test chart. The external equipment transmits the data for performance correction to a location identified by the save location information. The save location information identifies at least a memory device of an apparatus other than the image formation apparatus as a save location to save the data for performance correction. The image formation apparatus corrects performance of the image formation apparatus using the data for performance correction that is obtained from the location identified by the save location information.