专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09025222B1 Scanner calibration using inverse matrix 有权
标题翻译：扫描仪校准使用逆矩阵
公开(公告)号：US09025222B1
公开(公告)日：2015-05-05
申请号：US14313461
申请日：2014-06-24
申请人： Xerox Corporation
发明人： Xing Li , Zhenhuan Wen , Ryan Metcalfe
IPC分类号： H04N1/46 , H04N1/00 , H04N1/60
CPC分类号： H04N1/00023 , H04N1/00018 , H04N1/00045 , H04N1/00087 , H04N1/6033 , H04N2201/0005 , H04N2201/0081
摘要： Methods and systems methods calculate an initial matrix by correlating scanned test device-dependent values to device-independent color space values of a test sheet. The initial matrix converts device-dependent values to device-independent color space values; however, the initial matrix does include some conversion error. Such methods then calculate an inverse matrix from the initial matrix. These methods and systems then calculate target device-dependent values by applying the device-independent color space values to the inverse matrix. The methods and systems derive final one-dimensional look-up tables that isolate the conversion error by correlating the scanned test device-dependent values to the device-independent color space values. These methods and systems then derive a final matrix specific to the scanner by first applying the scanned test device-dependent values to the final one-dimensional look-up tables before creating the final matrix. Then, this final matrix can be substituted for the previously calculated conversion matrix used for non-calibration operation.
摘要翻译：方法和系统方法通过将扫描的测试设备相关值与测试表的设备无关的颜色空间值相关联来计算初始矩阵。初始矩阵将设备相关值转换为与设备无关的色彩空间值; 然而，初始矩阵确实包括一些转换误差。这样的方法然后从初始矩阵计算逆矩阵。然后，这些方法和系统通过将与设备无关的颜色空间值应用于逆矩阵来计算目标设备相关值。方法和系统通过将扫描的与测试设备相关的值与设备无关的色彩空间值进行关联来获得最终的一维查找表，从而隔离转换错误。然后，这些方法和系统通过在创建最终矩阵之前首先将扫描的与测试设备相关的值应用于最终的一维查找表，从而获得特定于扫描仪的最终矩阵。然后，该最终矩阵可以代替用于非校准操作的先前计算的转换矩阵。

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. 发明申请

US20140368886A1 BLACK TRAPPING METHODS, APPARATUS AND SYSTEMS FOR BINARY IMAGES 有权
标题翻译：黑色捕捉方法，二进制图像的装置和系统
公开(公告)号：US20140368886A1
公开(公告)日：2014-12-18
申请号：US13916059
申请日：2013-06-12
申请人： Xerox Corporation
发明人： Xing Li , Zhenhuan Wen
IPC分类号： G06K15/02
CPC分类号： G06K15/1881 , H04N1/58
摘要： Provided are black trapping methods, apparatus and systems for binary images. According to one exemplary method, black trapping color image data is performed by incorporating a set of trapping condition logical operations. Specifically, edge checking is based on estimated contone color values and density checking based on a binary bitmap.
摘要翻译：提供了用于二进制图像的黑色捕获方法，装置和系统。根据一个示例性方法，通过结合一组捕获条件逻辑操作来执行黑色捕获彩色图像数据。具体来说，边缘检查基于基于二进制位图的估计连续色度颜色值和浓度检查。

4. 发明授权

US08995021B2 Black trapping methods, apparatus and systems for binary images 有权
标题翻译：二进制图像的黑色捕获方法，装置和系统
公开(公告)号：US08995021B2
公开(公告)日：2015-03-31
申请号：US13916059
申请日：2013-06-12
申请人： Xerox Corporation
发明人： Xing Li , Zhenhuan Wen
IPC分类号： G06F3/12 , G06K15/02
CPC分类号： G06K15/1881 , H04N1/58
摘要： Provided are black trapping methods, apparatus and systems for binary images. According to one exemplary method, black trapping color image data is performed by incorporating a set of trapping condition logical operations. Specifically, edge checking is based on estimated contone color values and density checking based on a binary bitmap.
摘要翻译：提供了用于二进制图像的黑色捕获方法，装置和系统。根据一个示例性方法，通过结合一组捕获条件逻辑操作来执行黑色捕获彩色图像数据。具体来说，边缘检查基于基于二进制位图的估计连续色度颜色值和浓度检查。

5. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式