Transforming color signal values for use by a particular device
    1.
    发明授权
    Transforming color signal values for use by a particular device 失效
    转换颜色信号值供特定设备使用

    公开(公告)号:US5604610A

    公开(公告)日:1997-02-18

    申请号:US333828

    申请日:1994-11-03

    CPC classification number: H04N1/6027 H04N1/60 H04N1/6019

    Abstract: A method for transforming input color values of a digital image to produce suitable output color values for use by a particular device is disclosed. In this method a plurality of color transforms are stored, each such transform responds to input color values of a digital image and produces output color values which can be used by the particular device. In the method an intermediate transform which is user desirable for transforming the input color values is formed by interpolating between the plurality of transforms.

    Abstract translation: 公开了一种用于变换数字图像的输入颜色值以产生由特定装置使用的合适的输出颜色值的方法。 在该方法中,存储多个颜色变换,每个这样的变换对数字图像的输入颜色值进行响应,并产生特定装置可以使用的输出颜色值。 在该方法中,通过在多个变换之间进行内插来形成用户希望用于变换输入颜色值的中间变换。

    Method and associated apparatus for transforming input color values in
an input color space to output color values in an output color space
    2.
    发明授权
    Method and associated apparatus for transforming input color values in an input color space to output color values in an output color space 失效
    用于变换输入颜色空间中的输入颜色值以输出输出颜色空间中的颜色值的方法和相关联的装置

    公开(公告)号:US5539540A

    公开(公告)日:1996-07-23

    申请号:US305861

    申请日:1994-09-13

    CPC classification number: H04N1/6058

    Abstract: This invention provides a method for mapping an input color space to an output color space in such a way that the color reproduction characteristics of the saturated colors can be adjusted in a custom manner, while maintaining the desired tone reproduction on the neutral axis. This is accomplished by defining independently a tone transformation and a transformation for a plurality of highly saturated colors. A transformation is formed for the remaining color values having the specified transforms for the neutral and saturated colors as boundary values. In the preferred embodiment multi-dimensional look-up tables are used to implement the transform.

    Abstract translation: 本发明提供了一种用于将输入颜色空间映射到输出颜色空间的方法,使得可以以定制的方式调整饱和色的颜色再现特性,同时保持中性轴上所需的色调再现。 这通过独立地定义多个高度饱和的颜色的色调变换和变换来实现。 形成具有用于中性和饱和颜色的指定变换的剩余颜色值作为边界值的变换。 在优选实施例中,使用多维查找表来实现变换。

    Optimal color quantization for addressing multi-dimensional color
calibration look-up-table
    3.
    发明授权
    Optimal color quantization for addressing multi-dimensional color calibration look-up-table 失效
    用于寻址多维颜色校准查找表的最佳颜色量化

    公开(公告)号:US5377025A

    公开(公告)日:1994-12-27

    申请号:US980860

    申请日:1992-11-24

    CPC classification number: H04N1/60 H04N1/6019

    Abstract: This invention minimizes the color errors associated with performing conversion and/or correction of color digital image data using multi-dimensional look-up tables of a limited size. By distributing the errors across the color gamut it is possible to reduce the average color error as well as the maximum color errors associated with linear or conventional linear or nonlinear, e.g. cube-root or logarithmic, remapping schemes. The resulting advantage will be color images with greatly reduced artifacts.

    Abstract translation: 本发明使用有限尺寸的多维查找表来最小化与执行彩色数字图像数据的转换和/或校正相关联的颜色误差。 通过在色域上分布错误,可以减少与线性或常规线性或非线性相关联的平均颜色误差以及最大色差。 立方根或对数,重映射方案。 所产生的优点将是具有大大减少的伪影的彩色图像。

    COLOR ERROR DIFFUSION WITH ERROR SIGNAL OFFSET
    4.
    发明申请
    COLOR ERROR DIFFUSION WITH ERROR SIGNAL OFFSET 有权
    带有错误信号偏移的颜色错误扩散

    公开(公告)号:US20110211229A1

    公开(公告)日:2011-09-01

    申请号:US13105063

    申请日:2011-05-11

    CPC classification number: H04N1/52

    Abstract: A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes determining modified output levels using a combined error signal formed from intermediate error signals for each color channel together with an error signal offset value, and adjusting the input levels for the nearby pixels responsive to weighted error signals.

    Abstract translation: 一种用于多输入具有两个或多个颜色通道的输入像素的输入数字图像以形成具有修改的输出电平的输出数字图像的方法。 该方法包括使用由每个颜色通道的中间误差信号形成的组合误差信号以及误差信号偏移值来确定修正的输出电平,以及响应于加权误差信号调整附近像素的输入电平。

    DIGITAL PRINTING USING SIMILAR COLORANTS
    6.
    发明申请
    DIGITAL PRINTING USING SIMILAR COLORANTS 有权
    使用类似颜色的数字打印

    公开(公告)号:US20100141970A1

    公开(公告)日:2010-06-10

    申请号:US12330552

    申请日:2008-12-09

    CPC classification number: H04N1/60

    Abstract: A method for printing an input digital image using a digital printer having a set of colorants with substantially the same color but different densities, including a sequence of node points where each of the two or more colorants are either at their maximum or minimum values, setting colorant concentrations such that the color channel output responses corresponding to the sequence of node points are substantially equally spaced in a visually uniform color space; forming colorant control look-up tables to provide smooth transitions in the color channel output response between the sequence of node points; addressing the colorant control look-up tables with the printer code value for each pixel of the input digital image to determine the colorant control signals for each of the two or more colorants; and controlling the digital printer using the colorant control signals to produce a print of the input digital image.

    Abstract translation: 一种使用具有基本上相同颜色但不同密度的一组着色剂的数字打印机打印输入数字图像的方法,包括其中两个或更多个着色剂中的每一个处于其最大值或最小值的节点点序列,设置 着色剂浓度使得对应于节点点序列的颜色通道输出响应在视觉均匀的颜色空间中基本相等间隔; 形成着色剂控制查找表,以在节点间序列中的颜色通道输出响应中提供平滑过渡; 使用输入数字图像的每个像素的打印机代码值寻址着色剂控制查找表,以确定两种或更多种着色剂中的每一种的着色剂控制信号; 以及使用着色剂控制信号来控制数字打印机以产生输入数字图像的打印。

    Colorant control values for color printing devices
    7.
    发明授权
    Colorant control values for color printing devices 失效
    彩色打印设备的着色剂控制值

    公开(公告)号:US07535596B2

    公开(公告)日:2009-05-19

    申请号:US11121768

    申请日:2005-05-04

    CPC classification number: H04N1/6022

    Abstract: A method for determining colorant control values for a color imaging device having four or more colorants is disclosed. The method includes defining a color mapping for a set of paths through a three-channel color space, defining a color mapping function for the three-channel color space relating the three-channel color space values to colorant control values for the four or more colorants of the color imaging device by interpolating between the color mapping defined for the set of paths, forming a forward three-channel color model relating the three-channel color space values to device-independent color values, inverting the forward three-channel color model to determine an inverse three-channel color model relating the device-independent color values to the three-channel color space values, and combining the inverse three-channel color model and the color mapping function to determine an inverse device color model.

    Abstract translation: 公开了一种用于确定具有四种或更多种着色剂的彩色成像装置的着色剂控制值的方法。 该方法包括通过三通道颜色空间定义一组路径的颜色映射,为三通道颜色空间值与四个或更多个着色剂的着色剂控制值定义三通道颜色空间的颜色映射功能 通过在为该组路径定义的颜色映射之间进行内插,形成将三通道颜色空间值与设备无关的颜色值相关联的前向三通道颜色模型,将前向三通道颜色模型反转到 确定将与设备无关的颜色值与三通道色彩空间值相关联的反向三通道颜色模型,并组合逆三通道颜色模型和颜色映射功能以确定逆设备颜色模型。

    SCANNER METAMERISM CORRECTION
    8.
    发明申请
    SCANNER METAMERISM CORRECTION 失效
    扫描仪元素校正

    公开(公告)号:US20080239334A1

    公开(公告)日:2008-10-02

    申请号:US11694098

    申请日:2007-03-30

    CPC classification number: H04N1/6094 H04N1/603

    Abstract: A method for automatically compensating for scanner metamerism errors associated with scanning input images using a digital color image scanner, wherein the input images can be on a variety of different input media having colorants with different spectral characteristics, comprising scanning an input image on a digital color image scanner to produce a scanned image; determining one or more estimated color balance error values in a color balance parameter space by analyzing the scanned image using a color balance analysis algorithm; assigning an input medium from a set of possible input media for the scanned input image in response to the estimated color balance error values; selecting a scanner metamerism correction color transform associated with the assigned input medium; and applying the selected scanner metamerism correction color transform to the scanned image to produce a corrected image compensated for scanner metamerism errors.

    Abstract translation: 一种用于自动补偿与使用数字彩色图像扫描器扫描输入图像相关的扫描器同色异谱误差的方法,其中所述输入图像可以在具有不同光谱特性的着色剂的各种不同输入介质上,包括以数字颜色扫描输入图像 图像扫描仪产生扫描图像; 通过使用颜色平衡分析算法分析扫描图像来确定颜色平衡参数空间中的一个或多个估计的颜色平衡误差值; 响应于估计的颜色平衡误差值,从扫描的输入图像的一组可能的输入介质中分配输入介质; 选择与分配的输入介质相关联的扫描器同色异谱校正颜色变换; 以及将所选择的扫描器同色异谱校正颜色变换应用于扫描图像,以产生补偿扫描器同色异谱误差的校正图像。

    Method for providing access to an extended color gamut digital image and providing payment therefor
    9.
    发明授权
    Method for providing access to an extended color gamut digital image and providing payment therefor 失效
    提供对扩展色域数字图像的访问并提供付费的方法

    公开(公告)号:US06937362B1

    公开(公告)日:2005-08-30

    申请号:US09543038

    申请日:2000-04-05

    CPC classification number: H04N1/6058 H04N1/34

    Abstract: A method for providing a user access to an extended color gamut digital image and for obtaining payment therefor, comprising the steps of representing the extended color gamut digital image with a limited color gamut digital image and one or more associated residual image(s) representing a difference between the extended color gamut digital image and the limited color gamut digital image; storing the limited color gamut digital image and the associated residual images(s) in an electronic memory; providing the user or user's designee access to the limited color gamut digital image in the electronic memory to provide a preview image; obtaining a payment identifier from the user and making payment using such payment identifier to permit the user or user's designee access to the associated residual image(s); and providing the user or user's designee access to the associated residual image(s) in the electronic memory.

    Abstract translation: 一种用于提供用户对扩展色域数字图像的访问并用于获得其付费的方法,包括以下步骤:用有限色域数字图像和一个或多个相关联的残留图像表示扩展色域数字图像, 扩展色域数字图像与有限色域数字图像之间的差异; 将有限色域数字图像和相关联的残留图像存储在电子存储器中; 提供用户或用户的指定者访问电子存储器中的有限色域数字图像以提供预览图像; 从用户获得支付标识符并使​​用这种支付标识符进行支付,以允许用户或用户的指定者访问相关联的残留图像; 并且向用户或用户的指定者提供对电子存储器中的相关联的残留图像的访问。

    Correcting exposure in a rendered digital image
    10.
    发明授权
    Correcting exposure in a rendered digital image 有权
    在渲染的数字图像中校正曝光

    公开(公告)号:US06781713B1

    公开(公告)日:2004-08-24

    申请号:US09315647

    申请日:1999-05-20

    CPC classification number: H04N1/4072

    Abstract: A method for correcting for exposure in a digital image, including the steps of providing a rendered digital image suitable for display and displaying such digital image; using an adjustable exposure setting to nonlinearly modify the rendered digital image to effect an exposure change and displaying the exposure modified rendered digital image; and iteratively changing the adjustable exposure setting in accordance with the nonlinear function to continuously change the exposure setting and display modified digital images until a desired exposure modified rendered digital image is displayed.

    Abstract translation: 一种用于校正数字图像中的曝光的方法,包括以下步骤:提供适于显示和显示该数字图像的渲染数字图像; 使用可调节曝光设置来非线性地修改所渲染的数字图像以实现曝光改变并显示曝光修改渲染的数字图像; 并且根据非线性函数迭代地改变可调节的曝光设置,以连续地改变曝光设置并显示修改的数字图像,直到显示期望的曝光修改的呈现的数字图像。

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