公开(公告)号：US20050117809A1

公开(公告)日：2005-06-02

申请号：US10983076

申请日：2004-11-04

申请人： Joan Mitchell ,  Timothy Trenary ,  Nenad Rijavec ,  Ian Finlay

发明人： Joan Mitchell ,  Timothy Trenary ,  Nenad Rijavec ,  Ian Finlay

IPC分类号： G06K9/36 ,  G06K9/38 ,  H04N7/26 ,  H04N7/46

CPC分类号： H04N19/59 ,  H04N19/132 ,  H04N19/18 ,  H04N19/40

摘要： A method, system, and data structure for the scaling down of data is provided. At least two blocks of transformed data samples representing at least two blocks of original data samples are received. One of at least two tables of constants is selected wherein each table of constants is capable of reducing the number of transformed data samples by a different factor. The constants taken from the selected table are applied to the at least two blocks of transformed data samples to produce one block of transformed data samples representing one block of final data samples. The data is processed one dimension at a time by multiplying the data in one dimension with selected constants taken from previously developed tables corresponding to the desired scale down factor. Scaling down by different factors in each dimension as well as scaling down in one dimension and scaling up in the other dimension may be achieved. In addition, the de-quantization of the quantized transform coefficients may be accomplished by pre-multiplication of the selected constants when the quantization values are known. In a similar way the re-quantization may be accomplished by a pre-division of the selected constants. Both de-quantization and re-quantization may be combined when the input quantized transform coefficients and output quantized transform coefficients are desired.

摘要翻译： 提供了一种用于缩小数据的方法，系统和数据结构。 接收表示至少两个原始数据样本块的至少两个变换数据样本块。 选择至少两个常数表中的一个，其中每个常数表能够通过不同的因子减少变换数据样本的数量。 从所选择的表中取出的常数被应用于至少两个经变换的数据样本块，以产生表示一个最终数据样本块的一个变换数据样本块。 通过将一维中的数据与从先前开发的对应于期望的缩小因子的表获取的选定常数相乘，一次处理数据。 可以通过在每个维度中的不同因素进行缩放，以及在一维中缩小并在另一维度上进行放大。 此外，量化变换系数的去量化可以通过当量化值已知时所选常数的预乘法来实现。 以类似的方式，重新量化可以通过所选常数的预分割来实现。 当需要输入量化变换系数和输出量化变换系数时，可以组合去量化和重量化。

公开(公告)号：US20130293923A1

公开(公告)日：2013-11-07

申请号：US13462916

申请日：2012-05-03

申请人： Ward I. Fisher ,  Michael J. Holley ,  Yann LeCostaouec ,  Nenad Rijavec ,  Sathya Vadlamani ,  Jason C. Walp ,  Cheyenne C. Wills

发明人： Ward I. Fisher ,  Michael J. Holley ,  Yann LeCostaouec ,  Nenad Rijavec ,  Sathya Vadlamani ,  Jason C. Walp ,  Cheyenne C. Wills

IPC分类号： G06F3/12 ,  G06K15/02

CPC分类号： G06F3/121 ,  G06F3/1208 ,  G06F3/1273 ,  G06F3/1285

摘要： Methods and systems herein provide for estimating when the print quality of a printer is expected to decrease below a threshold based on a function of change in the print quality of the printer. In one embodiment, a system calculates a plurality of print quality measurements based on pages printed by a printer. The system determines a function of change of the print quality of the printer that is based on changes in the print quality measurements. The system estimates when the print quality of the printer is expected to decrease below a threshold based on the function of change in the print quality of the printer. The system then provides the estimate to a print operator.

摘要翻译： 这里的方法和系统提供了基于打印机的打印质量的变化的功能来估计打印机的打印质量何时被期望降低到低于阈值的时间。 在一个实施例中，系统基于由打印机打印的页面来计算多个打印质量测量。 该系统基于打印质量测量的变化确定打印机的打印质量的变化的功能。 基于打印机的打印质量变化的功能，系统估计打印机的打印质量预计会降低到阈值以下。 系统然后将估计值提供给打印操作员。

公开(公告)号：US08446637B2

公开(公告)日：2013-05-21

申请号：US13607951

申请日：2012-09-10

申请人： Larry M. Ernst ,  Nenad Rijavec

发明人： Larry M. Ernst ,  Nenad Rijavec

IPC分类号： G06F15/00

CPC分类号： H04N1/46

摘要： In summary, the present invention provides a method, apparatus and program product for calculating an estimate of the amount of toner coverage required for printing print data defined in a compressed data stream. The estimate is obtained with reduced processing by obtaining coverage data from a partially decompressed formed of the data stream and using this to obtain the coverage estimate, thus removing the need to do a full de-compression of the data stream. For example the coverage data is a count of toned pixels for at least one intensity level.

公开(公告)号：US08422103B2

公开(公告)日：2013-04-16

申请号：US12342331

申请日：2008-12-23

申请人： Yue Qiao ,  Nenad Rijavec

发明人： Yue Qiao ,  Nenad Rijavec

IPC分类号： G03F3/08

CPC分类号： H04N1/6022 ,  H04N1/6058

摘要： Methods and systems herein provide for color conversion. Such color conversion includes a method of optimizing gray component replacement in a color image that includes receiving a color image from an input imaging device (e.g., a digital camera, scanner, etc), determining a color gamut of an output imaging device, such as a printer, and generating a CIELab to CMY numerical model to convert the color image to a color space within the color gamut of the output imaging device. The method also includes generating a CMYK to CIELab numerical conversion model, removing a portion of CMY color values generated from the CIELab to CMY numerical conversion model, and replacing the removed portion of the CMY color values with black color values. The method also includes optimizing CMYK color values via a multidimensional optimization using the CMYK to CIELab numerical model.

摘要翻译： 本文的方法和系统提供了颜色转换。 这种颜色转换包括一种在彩色图像中优化灰度分量替换的方法，该方法包括从输入成像装置（例如，数字照相机，扫描仪等）接收彩色图像，确定输出成像装置的色域，例如 打印机，并且生成CIELab到CMY数值模型，以将彩色图像转换成输出成像装置的色域内的颜色空间。 该方法还包括生成CMYK到CIELab数值转换模型，去除从CIELab到CMY数值转换模型生成的一部分CMY颜色值，并用黑色颜色值替换CMY颜色值的去除部分。 该方法还包括通过使用CMYK到CIELab数值模型的多维优化来优化CMYK颜色值。

公开(公告)号：US08358440B2

公开(公告)日：2013-01-22

申请号：US12560832

申请日：2009-09-16

申请人： Larry M. Ernst ,  Charles D. Johnson ,  Hong Li ,  Michael McDermott ,  Yue Qiao ,  Nenad Rijavec ,  Kenneth S. Shouldice

发明人： Larry M. Ernst ,  Charles D. Johnson ,  Hong Li ,  Michael McDermott ,  Yue Qiao ,  Nenad Rijavec ,  Kenneth S. Shouldice

IPC分类号： G06F15/00

CPC分类号： H04N1/6033 ,  H04N1/6097

摘要： Methods and systems herein provide for calibrating for a plurality of different paper types. In one embodiment, a system for calibrating a printer includes a measurement module operable to detect colors printed on a first tangible medium by the printer and convert the detected colors to a detected color characterization. The system also includes a storage module operable to store a calibration file. The calibration file includes color characterizations of a plurality of different tangible mediums and each color characterization includes color measurements for one of the plurality of different tangible mediums obtained from the printer via the measurement module when the printer is calibrated. The system also includes a calibration module operable to compare the detected color characterization to at least two color characterizations of the calibration file and determine an adjustment to an output color scheme of the printer based on the comparison to calibrate the printer.

摘要翻译： 本文的方法和系统提供了用于校准多种不同纸张类型的方法和系统。 在一个实施例中，用于校准打印机的系统包括测量模块，其可操作以检测由打印机打印在第一有形介质上的颜色，并将检测到的颜色转换为检测到的颜色表征。 该系统还包括可存储校准文件的存储模块。 校准文件包括多个不同有形介质的颜色表征，并且每个颜色表征包括当打印机被校准时经由测量模块从打印机获得的多个不同有形介质中的一个的颜色测量。 该系统还包括校准模块，其可操作以将检测到的颜色表征与校准文件的至少两种颜色表征进行比较，并且基于比较来确定对打印机的输出颜色方案的调整以校准打印机。

公开(公告)号：US20130003093A1

公开(公告)日：2013-01-03

申请号：US13608009

申请日：2012-09-10

申请人： Larry M. Ernst ,  Nenad Rijavec

发明人： Larry M. Ernst ,  Nenad Rijavec

IPC分类号： H04N1/60

CPC分类号： H04N1/46

摘要： In summary, the present invention provides a method, apparatus and program product for calculating an estimate of the amount of toner coverage required for printing print data defined in a compressed data stream. The estimate is obtained with reduced processing by obtaining coverage data from a partially decompressed formed of the data stream and using this to obtain the coverage estimate, thus removing the need to do a full de-compression of the data stream. For example the coverage data is a count of toned pixels for at least one intensity level.

公开(公告)号：US08314949B2

公开(公告)日：2012-11-20

申请号：US12342706

申请日：2008-12-23

申请人： Nenad Rijavec

发明人： Nenad Rijavec

IPC分类号： H04N1/00 ,  G06K15/00 ,  G06F3/12

CPC分类号： G06F3/1288 ,  G06F3/1204 ,  G06F3/1212 ,  G06F3/1247 ,  G06F3/1267 ,  G06K15/02 ,  G06K15/1828 ,  G06K15/1859

摘要： A method is disclosed. The method includes receiving an object at a first image transform within a control unit, the first image transform searching for the object in a local cache, retrieving the object from a second image transform upon a determination that the object been previously received at the control unit and processed at the second image transform; and the first image transform performing a raster image process on the object upon a determination that the object has not been previously received at the control unit.

摘要翻译： 公开了一种方法。 所述方法包括：在控制单元内的第一图像变换下接收对象，所述第一图像变换在本地高速缓存中搜索所述对象，在确定所述对象先前在所述控制单元处接收到的对象中，从第二图像变换中检索所述对象 并在第二次图像变换处理; 并且所述第一图像变换在所述对象在所述控制单元尚未被先前接收到的确定的情况下对所述对象执行光栅图像处理。

公开(公告)号：US08289572B2

公开(公告)日：2012-10-16

申请号：US11233213

申请日：2005-09-22

申请人： Larry M. Ernst ,  Nenad Rijavec

发明人： Larry M. Ernst ,  Nenad Rijavec

IPC分类号： G06F15/00

CPC分类号： H04N1/46

摘要： In summary, the present invention provides a method, apparatus and program product for calculating an estimate of the amount of toner coverage required for printing print data defined in a compressed data stream. The estimate is obtained with reduced processing by obtaining coverage data from a partially decompressed formed of the data stream and using this to obtain the coverage estimate, thus removing the need to do a full de-compression of the data stream. For example the coverage data is a count of toned pixels for at least one intensity level.

摘要翻译： 总之，本发明提供一种用于计算在压缩数据流中定义的打印打印数据所需的调色剂覆盖量的估计的方法，装置和程序产品。 通过从数据流的部分解压缩获得覆盖数据并利用其获得覆盖估计，从而减少处理，从而消除对数据流进行完全解压缩的需要。 例如，覆盖数据是至少一个强度级别的调色像素的计数。

公开(公告)号：US08270031B2

公开(公告)日：2012-09-18

申请号：US12350555

申请日：2009-01-08

申请人： Joan L. Mitchell ,  Nenad Rijavec

发明人： Joan L. Mitchell ,  Nenad Rijavec

IPC分类号： G06K15/00

CPC分类号： H04N1/4055

摘要： A printing system is disclosed. The printing system includes an image processor to rasterize a received print job and to perform a halftone by comparing a first threshold value from a threshold matrix to a first image component sample, comparing the first threshold value to a first number of sequential image component samples neighboring the first sample if the first threshold value is less than the first sample and comparing the first threshold value to a second number of sequential image component samples neighboring the first sample if the first threshold value is greater than or equal to the first sample.

摘要翻译： 公开了一种打印系统。 打印系统包括图像处理器，用于光栅化所接收的打印作业并通过将来自阈值矩阵的第一阈值与第一图像分量样本进行比较来执行半色调，将第一阈值与邻近的第一数量的连续图像分量样本进行比较 如果所述第一阈值小于所述第一样本并且如果所述第一阈值大于或等于所述第一样本，则将所述第一阈值与所述第一样本相邻的第二数量的连续图像分量样本进行比较。

公开(公告)号：US20110188763A1

公开(公告)日：2011-08-04

申请号：US12696451

申请日：2010-01-29

申请人： Nenad Rijavec ,  Natalie D. Ross ,  Arianne T. Hinds

发明人： Nenad Rijavec ,  Natalie D. Ross ,  Arianne T. Hinds

IPC分类号： G06K9/36 ,  G06F17/30

CPC分类号： G06K9/36 ,  G06F16/00

摘要： A computer system is disclosed. The computer system includes a database to store image files and a compression unit to compress the image files. The compression unit includes a cache controller to control caching of header components of an image file common to two or more image files stored in the database.

摘要翻译： 公开了一种计算机系统。 计算机系统包括用于存储图像文件的数据库和用于压缩图像文件的压缩单元。 压缩单元包括高速缓存控制器，用于控制对存储在数据库中的两个或多个图像文件共同的图像文件的标题组件的高速缓存。