On-line calibration system for a dynamically varying color marking device
    1.
    发明授权
    On-line calibration system for a dynamically varying color marking device 有权
    用于动态变化的彩色打标设备的在线校准系统

    公开(公告)号:US07307752B1

    公开(公告)日:2007-12-11

    申请号:US09566291

    申请日:2000-05-05

    IPC分类号: G06F15/00 H04N1/46 G03F3/08

    摘要: A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an output image in response to the control signal, a sensor for measuring a parameter from the output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a color balance controller for constructing an adjusted device TRC from the controlled points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.

    摘要翻译: 一种彩色标记装置,包括基于输出图像的动态色彩平衡控制来校准装置的控制系统。 该系统包括:前端转换器,用于根据设备TRC将表示包括预选颜色的目标图像的输入信号转换成依赖于设备的控制信号;响应于控制信号输出输出图像的颜色标记装置 ,用于从表示输出图像的颜色的输出图像中测量参数的传感器,以及用于将参数与来自目标图像的相应参数进行比较的逐点控制器,并且当所述设备TRC的调整的控制点在 测量参数和相应的参数由预选值变化,用于从受控点构建调整的设备TRC的色平衡控制器,由此随后生成的输出图像被调整的设备TRC输出,并且更精确地表示目标输入图像。

    Color adjustment apparatus and method
    2.
    发明授权
    Color adjustment apparatus and method 有权
    颜色调整装置及方法

    公开(公告)号:US06744531B1

    公开(公告)日:2004-06-01

    申请号:US09221996

    申请日:1998-12-29

    IPC分类号: G06F1500

    CPC分类号: H04N1/6022

    摘要: An apparatus and method that provide consistent output across a plurality of different hard copy output devices which may be included in a system comprising an image data source and a hard copy output device. The image data source supplies image data to a printable image data adjusting apparatus. The image data supplied may be in a device-dependent color space or a device-independent color space. If the image data is in a device-dependent color space, the printable image data adjusting apparatus first converts the image data into device-independent image data and stores it in memory as target image data. If the image data is already device-independent image data, the image data are simply stored in the memory of the printable image data adjusting apparatus as target image data. The printable image data adjusting apparatus then uses the target image data to generate printable image data. The hard copy output device uses the printable image data to generate a hard copy image. The hard copy image is then passed within the optical field of a sensor that detects device-independent image data values of the hard copy image. The detected device-independent image data values are then compared against the target image data to generate color adjustment factors. The color adjustment factors are then used to produce a hard copy image having detected device-independent image data values that more closely represent the target image data. The apparatus and method may be implemented in real-time with or without human intervention.

    摘要翻译: 提供跨多个不同硬拷贝输出设备的一致输出的装置和方法,其可包括在包括图像数据源和硬拷贝输出设备的系统中。 图像数据源将图像数据提供给可打印图像数据调整装置。 所提供的图像数据可以在依赖于设备的色彩空间或与设备无关的色彩空间中。 如果图像数据处于依赖于设备的色彩空间中,则可打印图像数据调整装置首先将图像数据转换为与设备无关的图像数据,并将其存储在存储器中作为目标图像数据。 如果图像数据已经是与设备无关的图像数据,则将图像数据简单地存储在可打印图像数据调整装置的存储器中作为目标图像数据。 然后,可打印图像数据调整装置使用目标图像数据来生成可打印的图像数据。 硬拷贝输出设备使用可打印的图像数据来生成硬拷贝图像。 然后在检测硬拷贝图像的设备无关图像数据值的传感器的光学场内传递硬拷贝图像。 然后将检测到的与设备无关的图像数据值与目标图像数据进行比较以产生颜色调整因子。 然后使用颜色调节因子来产生具有更接近地表示目标图像数据的检测到的与设备无关的图像数据值的硬拷贝图像。 该装置和方法可以在有或没有人为干预的情况下实时地实现。

    Marking engine and method to optimize tone levels in a digital output system
    3.
    发明授权
    Marking engine and method to optimize tone levels in a digital output system 失效
    标记引擎和方法来优化数字输出系统中的音调级别

    公开(公告)号:US06643032B1

    公开(公告)日:2003-11-04

    申请号:US09221239

    申请日:1998-12-28

    IPC分类号: H04N1405

    CPC分类号: H04N1/4078 H04N1/4055

    摘要: A halftone cell is composed of a plurality of pixel groupings predefined to correspond to optimal tone level gradations. Selected output pixel groupings vary in number, and in shape of subpixels used from other pixel groupings, in order that successive input levels correspond to successive halftone cells defining substantially equal changes in a measured darkness value. Tone level gradations are optimized by purposeful correlation of input levels to output levels, especially where the number of output levels exceeds the number of input levels. During optimization, a calibration sample is produced by the image output device and calibration elements are empirically measured. Darkness change between successive levels is calculated and compared. Where the percentage of darkness change exceeds a desired amount, additional calibration elements are produced until the change calculated between successive levels is substantially the same. Successive input levels are associated with successive output levels such that a change between any adjacent input levels produces a change in darkness in the desired amount. The correlation is stored in a look up table for use during operation of the image output device.

    摘要翻译: 半色调单元由预定为对应于最佳色阶等级的多个像素分组组成。 所选择的输出像素分组在其他像素分组中使用的子像素的数量和形状不同,以便连续的输入电平对应于连续的半色调单元,其在测量的黑暗值中定义基本相等的变化。 通过输入电平与输出电平的有意义的相关性来优化音调级别,特别是输出电平数量超过输入电平数量时。 在优化期间,由图像输出装置产生校准样品,并且经验地测量校准元件。 计算并比较连续水平之间的黑暗变化。 在黑暗变化百分比超过所需量的情况下,产生额外的校准元件,直到在连续水平之间计算的变化基本相同。 连续输入电平与连续输出电平相关联,使得任何相邻输入电平之间的变化产生期望量的黑暗变化。 相关性存储在查找表中,以在图像输出设备的操作期间使用。

    Iterative printer control and color balancing system and method using a high quantization resolution halftone array to achieve improved image quality with reduced processing overhead
    4.
    发明授权
    Iterative printer control and color balancing system and method using a high quantization resolution halftone array to achieve improved image quality with reduced processing overhead 有权
    迭代打印机控制和颜色平衡系统和方法使用高量化分辨率半色调阵列,以减少处理开销来实现改进的图像质量

    公开(公告)号:US07277196B2

    公开(公告)日:2007-10-02

    申请号:US10342873

    申请日:2003-01-15

    IPC分类号: G06F15/00

    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。

    System and method for determining a billing structure for documents based on marking medium predictions
    5.
    发明授权
    System and method for determining a billing structure for documents based on marking medium predictions 有权
    用于基于标记介质预测确定文档的计费结构的系统和方法

    公开(公告)号:US08559081B2

    公开(公告)日:2013-10-15

    申请号:US12790388

    申请日:2010-05-28

    申请人: Peter A. Crean

    发明人: Peter A. Crean

    IPC分类号: G03F3/08

    摘要: Disclosed is a method for processing raster image data and determining via a reference device (e.g., LUT), an amount of marking medium (toner, ink) to be used for printing a document. Then billing costs based on the amount of medium is determined. In particular, a calibration method may be performed on an apparatus to determine the amounts of medium used for that particular apparatus. The calibration method includes printing pages with test patches for a plurality of colors at a particular dot value (or density), and weighing similar printed test pages so that the amount of medium used to print colors at particular dot values is determined by subtracting a weight of the pages before printing from the weight of the printed test pages. The change in weight (or mass) of the medium is used to populate the reference device for that apparatus.

    摘要翻译: 公开了一种用于处理光栅图像数据并经由参考装置(例如,LUT),用于打印文档的标记介质(调色剂,墨)的量的处理的方法。 然后确定基于介质量的计费费用。 特别地,可以在装置上执行校准方法以确定用于该特定装置的介质的量。 校准方法包括以特定的点值(或密度)打印具有用于多种颜色的测试片的页面,并称重类似的印刷测试页,使得用于在特定点值处打印颜色的介质的量通过减去重量来确定 从印刷测试页的重量打印之前的页面。 介质的重量(或质量)的变化用于填充该装置的参考装置。

    Vector halftoning in an image path utilizing sub-sampled cross-channel image values
    6.
    发明授权
    Vector halftoning in an image path utilizing sub-sampled cross-channel image values 有权
    使用子采样交叉通道图像值的图像路径中的矢量半色调

    公开(公告)号:US08203760B2

    公开(公告)日:2012-06-19

    申请号:US12396668

    申请日:2009-03-03

    IPC分类号: H04N1/405 H04N1/46

    CPC分类号: H04N1/52

    摘要: This disclosure provides methods, apparatus and systems to generate vector halftone data for rendering an image on an image output device. According to one aspect, a method generates vector halftone data as a function of contone pixel data for a given colorant at its nominal resolution and contone pixel data for the other colorants at a relatively lower resolution.

    摘要翻译: 本公开提供了生成用于在图像输出设备上呈现图像的矢量半色调数据的方法,装置和系统。 根据一个方面,一种方法根据其标称分辨率产生作为给定着色剂的连续色像素数据的函数的矢量半色调数据,并以相对较低的分辨率对其它着色剂进行连续色调像素数据。

    HYBRID VECTOR HALFTONE SCREENING AND ERROR DIFFUSION
    7.
    发明申请
    HYBRID VECTOR HALFTONE SCREENING AND ERROR DIFFUSION 审中-公开
    混合矢量HALFTONE筛选和错误扩展

    公开(公告)号:US20120106835A1

    公开(公告)日:2012-05-03

    申请号:US12915271

    申请日:2010-10-29

    IPC分类号: G06K9/00

    CPC分类号: H04N1/4052 H04N1/52

    摘要: Vector halftoning and error diffusion are combined to provide a quantization method that yields high quality rendered images while demanding fewer system resources. For instance, the method is tolerant of resolution reductions in secondary or auxiliary channels to the vector halftoning process. Accordingly, these secondary pixel data channels can be sub-sampled and/or bit-depth reduced for transmission bandwidth conservation and/or reduction in data storage requirements. Restoring the resolution of the low resolution channels provides estimated image data to arrange or align with high resolution target channel data for the vector halftoning process. Error from marking decisions generated by the vector halftoning process is diffused to neighboring unprocessed pixels. The method also allows for the use of a small vector halftone threshold array while providing quantized images with fine texture and wide color gamuts. In some embodiments error diffusion is distributed according to vector error diffusion.

    摘要翻译: 组合向量半色调和误差扩散以提供量化方法,其产生高质量渲染图像,同时要求较少的系统资源。 例如,该方法容忍向量半色调处理的次要或辅助通道中的分辨率降低。 因此,可以对这些次级像素数据信道进行子采样和/或位深度降低,以便传输带宽保持和/或减少数据存储要求。 恢复低分辨率通道的分辨率提供了估计的图像数据以排列或对齐用于矢量半色调处理的高分辨率目标通道数据。 通过矢量半色调处理生成的标记判定出错,扩散到相邻的未处理像素。 该方法还允许使用小矢量半色调阈值阵列,同时提供具有精细纹理和宽色域的量化图像。 在一些实施例中,根据向量误差扩散分布误差扩散。

    Methods and systems for providing halftone screens
    8.
    发明授权
    Methods and systems for providing halftone screens 失效
    提供半色调网的方法和系统

    公开(公告)号:US06956676B2

    公开(公告)日:2005-10-18

    申请号:US09683418

    申请日:2001-12-26

    IPC分类号: H04N1/405 G06K15/00 H04N1/40

    CPC分类号: H04N1/405 H04N1/4058

    摘要: Halftone generating methods and systems convert continuous tone anti-aliased image data to halftone image data using halftoning techniques that efficiently use memory resources. One of a plurality of Holladay counters is selected and the address bits from the selected Holladay counter are output to a look-up table that efficiently stores various halftone screens. Halftone image data is then output. If necessary, the halftone image data is unpacked and replicated as required depending on the resolution requirements of the halftone screen.

    摘要翻译: 半色调产生方法和系统使用半色调技术将连续色调抗锯齿图像数据转换成半色调图像数据,该技术有效地使用存储器资源。 选择多个Holladay计数器中的一个,并且将来自所选Holladay计数器的地址位输出到有效存储各种半色调屏幕的查找表。 然后输出半色调图像数据。 如果需要,根据半色调屏幕的分辨率要求,将半色调图像数据解压缩并根据需要进行复制。

    Pipelined architecture for patterned halftone generation
    9.
    发明授权
    Pipelined architecture for patterned halftone generation 失效
    流线型建筑图案半色调生成

    公开(公告)号:US5745249A

    公开(公告)日:1998-04-28

    申请号:US770922

    申请日:1996-12-20

    CPC分类号: H04N1/4055

    摘要: The present invention is a super-scalar method and apparatus for the generation of halftone dot patterns in an image processing system. The super-scalar design employs at least one block of memory for the storage of at least one predetermined halftone dot pattern across a plurality of unique locations therein, and a sequencer for producing an index into said memory as a function of the position of the pixel along a scan line and the halftone dot characteristics. Also included is addressing circuitry for memory access control, to combine the index produced by said sequencer and a pixel value for the pixel to produce a memory address, the memory address being thereby employed to access one of said locations in memory and to cause said memory to output a signal representative of a portion of the halftone dot pattern stored at the unique addressed location.

    摘要翻译: 本发明是用于在图像处理系统中产生半色调点图案的超标量方法和装置。 超标量设计采用至少一个存储器块来存储跨越其中的多个独特位置的至少一个预定的半色调点图案,以及定序器,用于根据像素的位置产生索引到所述存储器中 沿扫描线和半色调点特征。 还包括用于存储器访问控制的寻址电路,组合由所述定序器产生的索引和像素的像素值以产生存储器地址,由此存储器地址用于访问存储器中的一个位置并使所述存储器 以输出表示存储在唯一寻址位置处的半色调点图案的一部分的信号。

    PAGE PARALLEL RASTER IMAGE PROCESSING
    10.
    发明申请
    PAGE PARALLEL RASTER IMAGE PROCESSING 有权
    页面并行RASTER图像处理

    公开(公告)号:US20110292412A1

    公开(公告)日:2011-12-01

    申请号:US12788417

    申请日:2010-05-27

    IPC分类号: G06K1/00

    摘要: According to an aspect of the disclosure, a printing system is provided comprising a plurality of resources including idle and non-idle resources having a at least one image marking engine. The plurality of resources includes a page parallel RIP system wherein the RIP system supports configurable sized print chunks. The RIP system adaptively adjusts the size of the chunks according to the busyness of receiving RIP nodes.

    摘要翻译: 根据本公开的一个方面,提供一种打印系统,其包括多个资源,包括具有至少一个图像标记引擎的空闲和非空闲资源。 多个资源包括页面并行RIP系统,其中RIP系统支持可配置大小的打印块。 RIP系统根据接收RIP节点的繁忙情况自适应调整组块大小。