公开(公告)号：US07450266B2

公开(公告)日：2008-11-11

申请号：US10376447

申请日：2003-02-28

申请人： Juan Uroz ,  Johan Lammens ,  Jacint Humet Pous ,  Michel Encrenaz

发明人： Juan Uroz ,  Johan Lammens ,  Jacint Humet Pous ,  Michel Encrenaz

IPC分类号： H04N1/407 ,  H04N1/58 ,  G06K15/02 ,  G06K9/00

CPC分类号： H04N1/6088

摘要： In one embodiment, a print system includes an anticipated ambient lighting selector to allow selection of an anticipated ambient lighting. A rendering module is configured to map a print job into raster data configured to reduce color cast in gray output when displayed under the anticipated ambient lighting.

摘要翻译： 在一个实施例中，打印系统包括预期的环境照明选择器，以允许选择预期的环境照明。 渲染模块被配置为将打印作业映射为被配置为当在预期环境照明下显示时以灰色输出减少颜色投射的光栅数据。

公开(公告)号：US06607258B2

公开(公告)日：2003-08-19

申请号：US09832638

申请日：2001-04-11

申请人： Rodolfo Jodra ,  Johan Lammens

发明人： Rodolfo Jodra ,  Johan Lammens

IPC分类号： B41J2205

CPC分类号： H04N1/6011 ,  G06K15/025

摘要： The final-hardcopy operating facility, “target facility”, converts the content provider's original data file to a different color space to form a proofing data file. A proofing facility, which is distinct from the target facility, uses the proofing file to produce a visible proof for viewing by the content provider, customer etc. A common proofing file is applied to both preparing the proof and printing the final hardcopy. Because it is the target facility rather than the content provider or the proofing facility that prepares the proofing file, using maximum available knowledge about the printing equipment which will be used and its color characterization and other technical behavior, this approach gives maximum assurance that the final hardcopy will represent the proof as accurately as practical.

公开(公告)号：US07417768B1

公开(公告)日：2008-08-26

申请号：US09688610

申请日：2000-10-13

申请人： David H. Donovan ,  Miquel Boleda ,  Johan Lammens ,  Francesc Subirada

发明人： David H. Donovan ,  Miquel Boleda ,  Johan Lammens ,  Francesc Subirada

IPC分类号： G06K15/00 ,  H04N1/40

CPC分类号： H04N1/4015 ,  G06K15/102 ,  G06K2215/0094

摘要： CDE is measured for each nozzle array, to enable modification of a mapping between input image data and intended printing marks to compensate for the CDE. Printing proceeds using the modified mapping, which is either an optical-density transformation of data to printing marks or a spatial-resolution relation between image data and intended pixel grid. The density transformation preferably includes a dither mask (but can be error-diffusion thresholding instead); the resolution relation includes scaling of image data to pixel grid. For some invention forms, CDE includes printing-density defects, measured and used to derive a correction pattern—in turn used to modify halftone thresholding. For other forms CDE includes swath-height error, but still this is measured and used to derive a correction pattern etc. For still other forms, however, CDE includes swath-height error and correction takes the form of scaling. When the halftoning forms are applied to plural-pass printing, a printmask is used to map the dither mask etc. to the nozzle array, enabling application of the correction to the mask. Halftone forms ideally uses a gamma function, though threshold or linear corrections are possible instead. Halftone correction is effective in single-pass printing. The swath-height correction can modify heights of all nozzle arrays. Computations are done at most only once for a full image.

摘要翻译： 测量每个喷嘴阵列的CDE，以便能够修改输入图像数据和预期打印标记之间的映射，以补偿CDE。 使用修改的映射进行打印，该映射是数据到打印标记的光密度变换或图像数据与预期像素网格之间的空间分辨率关系。 密度变换优选包括抖动掩模（但可以是误差扩散阈值代替）; 分辨率关系包括将图像数据缩放到像素网格。 对于一些发明形式，CDE包括测量并用于导出校正模式的印刷密度缺陷，反过来用于修改半色调阈值。 对于其他形式，CDE包括扫描高度误差，但仍然被测量并用于导出校正模式等。然而，对于其他形式，CDE包括幅高错误，校正采用缩放的形式。 当将半色调形式应用于多遍打印时，使用打印掩模将抖动掩模等映射到喷嘴阵列，使得能够对掩模应用校正。 半色调形式理想地使用伽玛功能，尽管可以改变阈值或线性校正。 半色调校正在单程打印中有效。 扫描高度校正可以改变所有喷嘴阵列的高度。 对于完整图像，计算最多只能完成一次。

公开(公告)号：US20070273917A1

公开(公告)日：2007-11-29

申请号：US10571014

申请日：2004-08-27

申请人： Michel Encrenaz ,  Johan Lammens

发明人： Michel Encrenaz ,  Johan Lammens

IPC分类号： G06F15/00

CPC分类号： G06K15/02 ,  G06K15/1852 ,  G06K2215/0082 ,  G06K2215/0094

摘要： A print control system adapted to control a digital printer having a first machine-readable ink of a first colour and a second ink that is not machine readable at the same wavelength as said first ink and that is of substantially the same colour, said system being adapted to control said printer to print upon a document in said first ink a position -determining pattern readable by a digital pen to enable said pen to acquire data to enable a position of said pen in said pattern to be determined, and to print human discernable content that is not read by said pen superposed with said pattern using said second ink and not said first ink.

摘要翻译： 一种打印控制系统，适于控制具有第一颜色的第一机器可读墨水和第二墨水的数字打印机，所述第一机器可读墨水在与所述第一墨水相同的波长处不是机器可读的并且具有基本相同的颜色，所述系统是 适于控制所述打印机在所述第一墨水中的文档上打印由数字笔可读取的图案的位置，以使所述笔能够获取数据以使所述笔在所述图案中的位置得以确定，并且打印人可辨别的 所述笔不会用所述第二墨水与所述图案重叠的内容，而不是所述第一墨水。

公开(公告)号：US20050110798A1

公开(公告)日：2005-05-26

申请号：US10723232

申请日：2003-11-26

申请人： Huanzhao Zeng ,  Jacint Humet ,  Johan Lammens

发明人： Huanzhao Zeng ,  Jacint Humet ,  Johan Lammens

IPC分类号： G09G5/02 ,  H04N1/407 ,  H04N1/60

CPC分类号： H04N1/6033 ,  H04N1/4078 ,  H04N1/608

摘要： A number of sets of color values for an imaging system to output a corresponding number of neutral gray outputs at different lightness levels, is computed by interpolation, based at least in part on received or taken measurements of a number of near-neutral patches for the different lightness levels printed by the imaging system using a number of sets of color values of the imaging system's color space. The color values of the imaging system's color space are derived based on a number of sets of color values of a profile connection space (PCS) in accordance with a print table of a color profile of the imaging system mapping color value sets from the PCS to color value sets in the imaging system's color space. The various sets of defining color values define the near-neutral patches in the PCS.

摘要翻译： 至少部分地基于对于多个中性灰色输出的接收或采取的测量，通过插值来计算用于输出不同亮度级别的相应数量的中性灰色输出的成像系统的多组颜色值。 由成像系统使用成像系统的颜色空间的多个颜色值的集合来打印不同的亮度级别。 成像系统的颜色空间的颜色值基于根据成像系统的颜色配置文件的打印表将配置文件连接空间（PCS）的颜色值的集合映射到从PCS到 在成像系统的色彩空间中设置色彩值。 各种定义颜色值的集合定义了PCS中的近中性补丁。

公开(公告)号：US20050062985A1

公开(公告)日：2005-03-24

申请号：US10664805

申请日：2003-09-19

申请人： Johan Lammens ,  Michel Encrenaz

发明人： Johan Lammens ,  Michel Encrenaz

IPC分类号： H04N1/60

CPC分类号： H04N1/6088 ,  H04N1/6027

摘要： A method of applying a gray neutrality calibration to a color signal, said method comprising: representing said color signal as a position in a multi dimensional color space, in which each said dimension of said color space represents a respective primary color; defining a gray axis in said multi dimensional color space as a set of coordinates for which a plurality of said primary colors each have a same value as each other; determining a distance between said position representing said color signal and said gray axis; and using said determined distance between said color signal position and said gray axis to apply a gray neutrality correction to said input color signal.

摘要翻译： 一种对彩色信号应用灰色中立校准的方法，所述方法包括：将所述颜色信号表示为多维颜色空间中的位置，其中所述颜色空间的每个所述维度表示相应的原色; 在所述多维颜色空间中定义一个灰度轴，其中多个所述原色各自具有相同的值; 确定表示所述颜色信号的所述位置与所述灰度轴之间的距离; 并且使用所述确定的所述颜色信号位置和所述灰度轴之间的距离来对所述输入彩色信号应用灰色中立校正。

公开(公告)号：US20080130023A1

公开(公告)日：2008-06-05

申请号：US11666029

申请日：2004-10-28

申请人： Maria Jesus Perez ,  Johan Lammens

发明人： Maria Jesus Perez ,  Johan Lammens

IPC分类号： G06F15/00

CPC分类号： H04N1/6033 ,  H04N1/6097

摘要： A method of generating a device color profile for printing, with a printing device, on a translucent or transparent media. It includes: printing a profiling target on the media; measuring color values produced by the profiling target, when illuminated in transmission and when illuminated in reflection, in a device-independent color space; combining the transmission and reflection color values into combined transmission-reflection color values and creating a combined transmission-reflection profile mapping color values from a device-dependent color space to the device-independent color space; reversing the combined transmission-reflection profile, thereby obtaining the device color profile. The device color profile maps color values from a device-independent color space to a device-dependent color space in a manner which represents a color-reproduction compromise between transmission and reflection.

摘要翻译： 一种生成用于使用打印装置在半透明或透明介质上打印的设备颜色特征的方法。 它包括：在媒体上打印一个分析目标; 测量由成像目标产生的颜色值，当在透射中照射时和在反射中照射时，在与器件无关的色彩空间中; 将透射和反射颜色值组合成组合的透射反射颜色值，并创建将颜色值从依赖于设备的色彩空间映射到与设备无关的色彩空间的组合透射反射曲线; 反转组合透射反射曲线，从而获得器件颜色特征。 设备颜色配置文件以表示传输和反射之间的色彩再现折衷的方式将颜色值从与设备无关的色彩空间映射到依赖于设备的色彩空间。

公开(公告)号：US07382490B2

公开(公告)日：2008-06-03

申请号：US10664805

申请日：2003-09-19

申请人： Johan Lammens ,  Michel Encrenaz

发明人： Johan Lammens ,  Michel Encrenaz

IPC分类号： G06F15/00

CPC分类号： H04N1/6088 ,  H04N1/6027

摘要： A method of applying a gray neutrality calibration to a color signal, said method comprising: representing said color signal as a position in a multi dimensional color space, in which each said dimension of said color space represents a respective primary color; defining a gray axis in said multi dimensional color space as a set of coordinates for which a plurality of said primary colors each have a same value as each other; determining a distance between said position representing said color signal and said gray axis; and using said determined distance between said color signal position and said gray axis to apply a gray neutrality correction to said input color signal.

摘要翻译： 一种对彩色信号应用灰色中立校准的方法，所述方法包括：将所述颜色信号表示为多维颜色空间中的位置，其中所述颜色空间的每个所述维度表示相应的原色; 在所述多维颜色空间中定义一个灰度轴，其中多个所述原色各自具有相同的值; 确定表示所述颜色信号的所述位置与所述灰度轴之间的距离; 并且使用所述确定的所述颜色信号位置和所述灰度轴之间的距离来对所述输入彩色信号应用灰色中立校正。

公开(公告)号：US07027185B2

公开(公告)日：2006-04-11

申请号：US09919207

申请日：2001-07-30

申请人： Francesco Subirada ,  Pau Soler ,  Johan Lammens

发明人： Francesco Subirada ,  Pau Soler ,  Johan Lammens

IPC分类号： G06F15/00 ,  H04N1/46 ,  B41J29/393

CPC分类号： H04N1/00015 ,  H04N1/00002 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/6033

摘要： A printing system is linearized automatically using measurements made with a simple optical sensor, such as a line sensor, that is onboard the system. The printing system itself is for forming images on plural printing media. Because the optical sensor is not a calorimeter or even a true densitometer, the sensor requires calibration, preferably based upon measurements using real inks. In the past it has been considered a requirement that such calibration be performed separately using each of the print media that was to be used for printing images. Linearization according to the invention, however, refers to a single calibration of the sensor, that calibration being used in common for essentially all media—even though the single calibration is performed with respect to exclusively a single one of the plural media.

摘要翻译： 使用在系统上的简单光学传感器（例如线路传感器）进行的测量，自动线性化打印系统。 打印系统本身用于在多个打印介质上形成图像。 因为光学传感器不是比色计或甚至真实的密度计，传感器需要校准，优选地基于使用真实墨水的测量。 在过去，已经认为要求使用要用于打印图像的每个打印介质分别执行这种校准。 然而，根据本发明的线性化是指传感器的单次校准，该校准用于基本上所有的介质，即使单独校准仅针对多个介质中的单个校准进行。

公开(公告)号：US07158263B2

公开(公告)日：2007-01-02

申请号：US09915417

申请日：2001-07-27

申请人： William J Allen ,  Johan Lammens

发明人： William J Allen ,  Johan Lammens

IPC分类号： G06K15/00 ,  H04N1/405 ,  H04N1/46

CPC分类号： H04N1/407 ,  B41J2/52 ,  H04N1/4055

摘要： There is disclosed a method of dynamic generation of a linearized halftone matrix from a high bit resolution halftone matrix, for use in a printer device, for example a domestic or office printer device or a commercial high resolution printer device. A high bit resolution halftone threshold matrix is converted into a vector format (700). A tone correction function is applied by selecting a variable number of index values, each index value representing a threshold level. A tone corrected two-dimensional 8 bit threshold level matrix, is then applied to a corresponding print image plane comprising a plurality of pixels to obtain a two dimensional print data for each of a plurality of colors of an image. The print data is printed as a plurality of dots by a print head to form a printed image using a halftoning method.

摘要翻译： 公开了一种从高位分辨率半色调矩阵中动态生成线性化半色调矩阵的方法，用于打印机设备，例如家用或办公室打印机设备或商用高分辨率打印机设备。 高分辨率半色调阈值矩阵被转换为矢量格式（700）。 通过选择可变数量的索引值来应用色调校正功能，每个索引值表示阈值水平。 然后将色调校正的二维8位阈值电平矩阵应用于包括多个像素的对应的打印图像平面，以获得用于图像的多种颜色中的每一种的二维打印数据。 通过打印头将打印数据作为多个点打印，以使用半色调方法形成打印图像。