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1. 发明申请

US20140285856A1 SYSTEM AND METHOD FOR COLOR CALIBRATION OF A COLOR PRINTING SYSTEM WITH RECORDING MEDIA BRIGHTNESS COMPENSATION 有权
标题翻译：用于具有记录媒体亮度补偿的彩色打印系统的颜色校准的系统和方法
公开(公告)号：US20140285856A1
公开(公告)日：2014-09-25
申请号：US13848395
申请日：2013-03-21
申请人： XEROX CORPORATION
发明人： Zhenhuan Wen , Robert E. Nuuja
IPC分类号： H04N1/46
CPC分类号： H04N1/6097 , H04N1/6033
摘要： A method allows an end user to calibrate a color reproduction device with recording media brightness compensation. A color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, the desired values of each patch of the test target and a printing device. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation includes compensation for utilizing a recording media that does not have the same white characteristics as the recording media that was used to generate the scanner profile used in converting the scanner dependent color space values to a device independent color space values.
摘要翻译：一种方法允许终端用户通过记录介质亮度补偿来校准色彩再现设备。彩色再现装置包括用于将扫描仪的本机颜色值转换成独立于设备的色彩空间的装置，测试对象，测试对象的每个贴片的期望值以及打印装置。该方法包括打印测试对象并用形成彩色再现设备的一部分的扫描仪进行扫描。该装置将所需的值与从打印的测试目标扫描获得的值进行比较，以获得一组调整值，以补偿色彩再现装置的输出中的漂移。该补偿包括利用与用于生成用于将扫描仪相关色空间值转换为设备无关色空间值的扫描器简档的记录介质不具有与记录介质不相同的白色特性的补偿。

2. 发明授权

US08896892B2 System and method for color calibration of a color printing system with recording media brightness compensation 有权
标题翻译：具有记录介质亮度补偿的彩色打印系统的颜色校准系统和方法
公开(公告)号：US08896892B2
公开(公告)日：2014-11-25
申请号：US13848395
申请日：2013-03-21
申请人： Xerox Corporation
发明人： Zhenhuan Wen , Robert E. Nuuja
IPC分类号： H04N1/04 , H04N1/60 , H04N1/46 , G01D18/00
CPC分类号： H04N1/6097 , H04N1/6033
摘要： A method allows an end user to calibrate a color reproduction device with recording media brightness compensation. A color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, the desired values of each patch of the test target and a printing device. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation includes compensation for utilizing a recording media that does not have the same white characteristics as the recording media that was used to generate the scanner profile used in converting the scanner dependent color space values to a device independent color space values.
摘要翻译：一种方法允许终端用户通过记录介质亮度补偿来校准色彩再现设备。彩色再现装置包括用于将扫描仪的本机颜色值转换成独立于设备的色彩空间的装置，测试对象，测试对象的每个贴片的期望值以及打印装置。该方法包括打印测试对象并用形成彩色再现设备的一部分的扫描仪进行扫描。该装置将所需的值与从打印的测试目标扫描获得的值进行比较，以获得一组调整值，以补偿色彩再现装置的输出中的漂移。该补偿包括利用与用于生成用于将扫描仪相关色空间值转换为设备无关色空间值的扫描器简档的记录介质不具有与记录介质不相同的白色特性的补偿。

3. 发明授权

US10178280B2 Paper type dependent automatic background suppression 有权
公开(公告)号：US10178280B2
公开(公告)日：2019-01-08
申请号：US15472892
申请日：2017-03-29
申请人： Xerox Corporation
发明人： Michael J. Wilsher , Clara Cuciurean-Zapan , Robert E. Nuuja
IPC分类号： G06T5/00 , H04N1/60 , H04N1/58 , H04N1/407 , H04N1/00
摘要： According to exemplary methods, a selection of a paper type for producing an image is received. A database of background suppression values associated with paper types is searched. Responsive to not finding a background suppression value associated with the paper type, the database is updated for the paper type. According to the method of updating, a page of the paper type is scanned and image data obtained by scanning the page is analyzed. Background luminance for the page is determined based on analyzing the image data. A background suppression value is calculated for the page based on the background luminance. The paper type and the background suppression value for the page are added to the database. The background suppression value is associated with the paper in the database.

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