公开(公告)号：US20040240901A1

公开(公告)日：2004-12-02

申请号：US10447424

申请日：2003-05-29

申请人： Xerox Corporation

发明人： Edul N. Dalal ,  D. Rene Rasmussen ,  Peter A. Crean

IPC分类号： G03G015/00

CPC分类号： G03G15/5041 ,  G03G2215/00037 ,  G03G2215/0158

摘要： A toner control process, which includes substantially determining how reload error will affect a printed image, modulating the color density of a test patch to compensate for reload error prior to printing the test patch, printing the modulated test patch, sensing the digital image, adjusting toner output according to the sensed digital image.

摘要翻译： 一种调色剂控制过程，其包括基本上确定如何重新加载误差将影响印刷图像，调制测试贴片的颜色浓度以补偿打印测试贴片之前的重新加载误差，打印调制测试贴片，感测数字图像，调整 根据感测到的数字图像调色剂输出。

公开(公告)号：US20040239964A1

公开(公告)日：2004-12-02

申请号：US10447562

申请日：2003-05-29

申请人： Xerox Corporation

发明人： Edul N. Dalal ,  D. Rene Rasmussen ,  Peter A. Crean

IPC分类号： G06K015/14 ,  H04N001/58 ,  H04N001/409

CPC分类号： H04N1/4078

摘要： A method for improving the image quality, which includes substantially predicting an effect of reload error for at least one toner color of a developed image, modulating the color density of at least one pixel of a digital image to compensate for the predicted effect of the reload error, generating the developed image based upon the modulated digital image.

摘要翻译： 一种用于改善图像质量的方法，其包括基本上预测显影图像的至少一种调色剂的重新加载误差的影响，调制数字图像的至少一个像素的色彩浓度以补偿预测的重新加载的影响 错误，基于调制的数字图像生成显影图像。

公开(公告)号：US20040136015A1

公开(公告)日：2004-07-15

申请号：US10342873

申请日：2003-01-15

申请人： XEROX CORPORATION

发明人： Jean-Pierre R.M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

IPC分类号： H04N001/60 ,  H04N001/52

CPC分类号： H04N1/4078 ,  H04N1/6033

摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.

摘要翻译： 一种用于打印机控制和色平衡校准的系统和方法。 该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。 该方法包括定义着色剂的组合，例如将用于打印图像的油墨或调色剂，为要使用的组合定义期望的响应，并且实时迭代地打印CMY半色调色块，测量印刷的贴片 通过原位传感器并且基于测量迭代地执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。 校准在半色调上进行，而它们处于高量化分辨率形式。

公开(公告)号：US20040240902A1

公开(公告)日：2004-12-02

申请号：US10447561

申请日：2003-05-29

申请人： Xerox Corporation

发明人： Edul N. Dalal ,  D. Rene Rasmussen ,  Peter A. Crean

IPC分类号： G03G015/00

CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/0158

摘要： A toner process control process, which includes substantially predicting an effect of reload error on a developed test patch, generating a developed test patch, sensing color density data from the test patch with a sensor, altering the sensed color density data to compensate for the predicted effect of reload error, and adjusting toner output according to the altered sensed color density data.

摘要翻译： 一种调色剂过程控制过程，其包括基本上预测重新加载误差对开发的测试贴片的影响，产生开发的测试贴片，用传感器从测试贴片感测颜色浓度数据，改变感测的颜色浓度数据以补偿预测的 重新加载误差的影响，以及根据改变的感测颜色密度数据调节调色剂输出。

公开(公告)号：US20040012817A1

公开(公告)日：2004-01-22

申请号：US10196837

申请日：2002-07-16

申请人： XEROX CORPORATION

发明人： Grace T. Brewington ,  Peter A. Crean ,  Lalit K. Mestha ,  Gary W. Skinner

IPC分类号： H04N001/405

CPC分类号： H04N1/40006 ,  H04N1/4076 ,  H04N1/6097

摘要： In an image rendering system, a method of compensating for system performance changes related to image attributes includes rendering a diagnostic image, sensing at least one image quality from the diagnostic image, updating an image attribute compensation tone reproduction curve based on the sensed image quality and rendering an image based on the updated image attribute compensation tone reproduction curve. For example, image attributes include print media type and a halftone screen selection. An image processing system operative to perform the method of compensation includes a set of image attribute compensation tone reproduction curves. Each curve of the set is associated with a particular combination of image attributes. For example, each curve is associated with a particular media type/halftone screen combination.

摘要翻译： 在图像渲染系统中，补偿与图像属性相关的系统性能改变的方法包括渲染诊断图像，从诊断图像感测至少一个图像质量，基于感测图像质量更新图像属性补偿色调再现曲线，以及 基于更新的图像属性补偿色调再现曲线渲染图像。 例如，图像属性包括打印介质类型和半色调屏幕选择。 可执行补偿方法的图像处理系统包括一组图像属性补偿色调再现曲线。 该集合的每个曲线与图像属性的特定组合相关联。 例如，每个曲线与特定的媒体类型/半色调屏幕组合相关联。

公开(公告)号：US20020080371A1

公开(公告)日：2002-06-27

申请号：US09745925

申请日：2000-12-21

申请人： Xerox Corporation

发明人： George L. Eldridge ,  Mark A. Smith ,  San A. Phong ,  Farzin Blurfrushan ,  Hilda Gharabegian ,  Peter A. Crean

IPC分类号： G06F015/00 ,  G06K015/02 ,  G06T003/40 ,  H04N001/393

CPC分类号： H04N1/40 ,  G06T3/403 ,  G06T9/007

摘要： Shifting a page image while it is still in compressed form. The page image is compressed into independent strips that are a full page in the fast scan direction, and a small number of scanlines in the slow scan direction. Then, to shift the page image, whole strips can be deleted in one margin and/or deleted from the other. If the number of scanlines per strip is small enough, the difference in a margin created by the change of one strip will not be apparent. This invention can be used to advantage when it is decided at print time that the output shall be in the form of a saddle-stitched booklet requiring two-up printing, folding and subsequent trimming of the outside edges to uniform alignment. Here, a progressive page shift can be introduced at the printer controller while the images are still compressed, instead of requiring the change to be done to the PostScript Master, which would require reRiPing or decompression, shift and recompression.

摘要翻译： 在仍然处于压缩形式的同时移动页面图像。 页面图像被压缩成快速扫描方向上的整页，并且在慢扫描方向上的少数扫描线的独立条带。 然后，要移动页面图像，可以在一个边距中删除整个条带和/或从另一个边缘删除。 如果每个条带的扫描线数量足够小，则通过一个条带的更改创建的边距的差异将不明显。 当在打印时确定输出应为需要双向打印，折叠和随后修剪外部边缘以均匀对准的马鞍缝合小册子的形式时，可以使用本发明。 这里，可以在打印机控制器上引入逐行页面移位，同时图像仍然被压缩，而不需要对PostScript Master进行改变，这将需要reRiPing或解压缩，移位和重新压缩。