POTENTIAL FIELD-BASED GAMUT MAPPING
    1.
    发明申请
    POTENTIAL FIELD-BASED GAMUT MAPPING 有权
    潜在的基于场的游戏映射

    公开(公告)号:US20120229461A1

    公开(公告)日:2012-09-13

    申请号:US13473914

    申请日:2012-05-17

    IPC分类号: G06T15/00

    CPC分类号: H04N1/6058

    摘要: A method for adjusting a color in a color space comprises adjusting the color along a gradient path to a point in or on a color gamut. The gradient path is determined from a potential field derived from the color gamut consisting of gamut points in the color space. The potential field can be derived from one or more points in the color gamut and different functions may be used to determine the potentials due to different points in the gamut. The potential at a point in the color space due to the gamut point can be a function, including an inverse power, of distance of the point in the color space from the gamut point. The gradient path can be determined from the gradient of the potential field by quadric error-based surface simplification of a surface mesh representing a surface of the gamut.

    摘要翻译: 用于调整颜色空间中的颜色的方法包括将沿着渐变路径的颜色调整到色域中或其上的点。 从由颜色空间中的色域组成的色域导出的势场确定梯度路径。 可以从色域中的一个或多个点导出势场,并且可以使用不同的功能来确定由于色域中的不同点引起的电位。 由于色域而导致的颜色空间中的某一点的电位可以是颜色空间中的点与色域点的距离的函数,包括逆功率。 梯度路径可以通过表示网格表面的表面网格的基于二次误差的表面简化从电场的梯度来确定。

    ENHANCED RELIEF PRINTING PLATE
    2.
    发明申请
    ENHANCED RELIEF PRINTING PLATE 有权
    增强放心打印板

    公开(公告)号:US20100143841A1

    公开(公告)日:2010-06-10

    申请号:US12329837

    申请日:2008-12-08

    IPC分类号: G03F7/20 G03F7/004

    摘要: An improved relief printing plate and method for producing said plate is disclosed. Substantially all sizes of relief features resolve a fixed pattern which improves print quality. The pattern is applied to image areas in halftone data used to produce an image mask that is subsequently used to convert a plate precursor into a relief plate. The accuracy, ink density and tonal response of printed images corresponding to relief features that include the pattern are comparable or better than relief features produced without the pattern.

    摘要翻译: 公开了一种改进的凸版印刷版及其制造方法。 基本上所有尺寸的浮雕特征解决了固定图案,从而提高了打印质量。 将图案应用于用于产生图像掩模的半色调数据中的图像区域,随后将其用于将平板前体转换为凸版。 对应于包括图案的浮雕特征的印刷图像的精度,油墨密度和色调响应与没有图案产生的浮雕特征相比或更好。

    Gamut-preserving color imaging
    3.
    发明授权
    Gamut-preserving color imaging 有权
    色域保护色彩成像

    公开(公告)号:US07177047B2

    公开(公告)日:2007-02-13

    申请号:US09741460

    申请日:2000-12-19

    申请人: William A. Rozzi

    发明人: William A. Rozzi

    IPC分类号: G06F15/00

    CPC分类号: H04N1/6022 H04N1/6016

    摘要: A color imaging technique includes setting a target value in a device-independent first color space and mapping the target value to a substantially complete point set in a second color space. The point set may include a plurality of points, each of which define substantially the same colorimetric value via a unique combination of colorants. After mapping the target value to a substantially complete point set, a point may be chosen. Moreover, after choosing a point in the point set, device-dependent colorant values defined by the point may be determined. In this manner, the invention may provide control over the colorants that are used to image a particular color.

    摘要翻译: 彩色成像技术包括在与设备无关的第一颜色空间中设置目标值并将目标值映射到在第二颜色空间中设置的基本完整的点。 点集可以包括多个点,每个点通过着色剂的独特组合限定基本相同的比色值。 将目标值映射到基本完整的点集之后,可以选择一个点。 此外,在选择点集合中的点之后,可以确定由点定义的依赖于设备的着色剂值。 以这种方式,本发明可以提供对用于成像特定颜色的着色剂的控制。

    POTENTIAL FIELD-BASED GAMUT MAPPING
    4.
    发明申请
    POTENTIAL FIELD-BASED GAMUT MAPPING 有权
    潜在的基于场的游戏映射

    公开(公告)号:US20100086226A1

    公开(公告)日:2010-04-08

    申请号:US12244813

    申请日:2008-10-03

    IPC分类号: G06K9/40

    CPC分类号: H04N1/6058

    摘要: A method for adjusting a color in a color space comprises adjusting the color along a gradient path to a point in or on a color gamut. The gradient path is determined from a potential field derived from the color gamut consisting of gamut points in the color space. The potential field can be derived from one or more points in the color gamut and different functions may be used to determine the potentials due to different points in the gamut. The potential at a point in the color space due to the gamut point can be a function, including an inverse power, of distance of the point in the color space from the gamut point. The gradient path can be determined from the gradient of the potential field by quadric error-based surface simplification of a surface mesh representing a surface of the gamut.

    摘要翻译: 用于调整颜色空间中的颜色的方法包括将沿着渐变路径的颜色调整到色域中或其上的点。 从由颜色空间中的色域组成的色域导出的势场确定梯度路径。 可以从色域中的一个或多个点导出势场,并且可以使用不同的功能来确定由于色域中的不同点引起的电位。 由于色域而导致的颜色空间中的某一点的电位可以是颜色空间中的点与色域点的距离的函数,包括逆功率。 梯度路径可以通过表示网格表面的表面网格的基于二次误差的表面简化从电场的梯度来确定。

    Colorimetric characterization of scanned media using spectral scanner and basis spectra models
    5.
    发明授权
    Colorimetric characterization of scanned media using spectral scanner and basis spectra models 有权
    使用光谱扫描仪和基础光谱模型对扫描介质进行比色表征

    公开(公告)号:US06654150B1

    公开(公告)日:2003-11-25

    申请号:US09342983

    申请日:1999-06-29

    申请人: William A. Rozzi

    发明人: William A. Rozzi

    IPC分类号: G03F308

    CPC分类号: H04N1/603

    摘要: Modeling spectral characteristics of an image acquisition device. In one implementation, a computer system predicts the spectral reflectance or transmittance of a sample scanned by an image acquisition device, such as a graphic art scanner, by modeling the device. The sample is scanned by a scanner. The computer system searches for media coordinates in a colorant space corresponding to the sample. The media coordinates correspond to an estimated spectrum in a basis spectra model. The basis spectra model is derived by analyzing training color patches of the sample distributed throughout the gamut of the colorant set on the sample media. The estimated spectrum generates estimated digital values through a forward model of the scanner. The estimated digital values are compared to target digital values generated by the scanner to calculate an error value. The computer system repeats this process until a desired stopping criterion or criteria are met. The estimated spectrum corresponding to the final estimated digital values represents the reflectance spectrum of the sample as scanned by the scanner.

    摘要翻译: 建模图像采集设备的光谱特性。 在一个实施方案中,计算机系统通过对该装置进行建模来预测由诸如图形艺术扫描仪的图像采集装置扫描的样品的光谱反射率或透射率。 样品由扫描仪扫描。 计算机系统搜索与样品相对应的着色剂空间中的介质坐标。 媒体坐标对应于基础谱模型中的估计频谱。 通过分析在样品介质上的着色剂集合的整个色域分布的样品的训练色块来导出基础光谱模型。 估计的频谱通过扫描仪的前向模型产生估计的数字值。 将估计的数字值与由扫描仪生成的目标数字值进行比较以计算误差值。 计算机系统重复该过程,直到满足期望的停止标准或标准。 对应于最终估计数字值的估计光谱表示由扫描仪扫描的样品的反射光谱。

    Colorimetric characterization of scanned media using spectral scanner and media models
    6.
    发明授权
    Colorimetric characterization of scanned media using spectral scanner and media models 失效
    使用光谱扫描仪和介质模型对扫描介质进行比色表征

    公开(公告)号:US06650446B1

    公开(公告)日:2003-11-18

    申请号:US09342960

    申请日:1999-06-29

    申请人: William A. Rozzi

    发明人: William A. Rozzi

    IPC分类号: G03F308

    CPC分类号: H04N1/6094 H04N1/603

    摘要: Modeling spectral characteristics of an image acquisition device. In one implementation, a computer system predicts the spectral reflectance or transmittance of a sample scanned by an image acquisition device, such as a graphics arts scanner, by modeling the device. The sample is scanned by a scanner. The computer system searches for media coordinates in a colorant space corresponding to the sample. The media coordinates correspond to an estimated spectrum in a media model. The estimated spectrum generates estimated digital values through a forward model of the scanner. The estimated digital values are compared to target digital values generated by the scanner to calculate an error value. The computer system repeats this process until a desired stopping criterion or criteria are met. The estimated spectrum corresponding to the final estimated digital values represents the reflectance spectrum of the sample as scanned by the scanner.

    摘要翻译: 建模图像采集设备的光谱特性。 在一个实施方式中,计算机系统通过对该装置进行建模来预测由诸如图形艺术扫描仪的图像采集装置扫描的样品的光谱反射率或透射率。 样品由扫描仪扫描。 计算机系统搜索与样品相对应的着色剂空间中的介质坐标。 媒体坐标对应于媒体模型中的估计频谱。 估计的频谱通过扫描仪的前向模型产生估计的数字值。 将估计的数字值与由扫描仪生成的目标数字值进行比较以计算误差值。 计算机系统重复该过程,直到满足期望的停止标准或标准。 对应于最终估计数字值的估计光谱表示由扫描仪扫描的样品的反射光谱。

    Emulation of a halftone printed image on a continuous-tone device
    7.
    发明授权
    Emulation of a halftone printed image on a continuous-tone device 失效
    在连续色调装置上模拟半色调打印图像

    公开(公告)号:US5526140A

    公开(公告)日:1996-06-11

    申请号:US398516

    申请日:1995-03-03

    申请人: William A. Rozzi

    发明人: William A. Rozzi

    IPC分类号: H04N1/46 H04N1/60 H04N1/23

    CPC分类号: H04N1/6011

    摘要: A system and method for representing a multi-color, halftone image on a multi-color, continuous-tone device can be configured to employ an approximation technique for determining areas of overlap regions produced by adjacent device spots in a printed halftone image based on a halftone device model. The approximation technique enables consideration of the effects of a variety of halftone device characteristics such as addressability, device spot size, and color values on the appearance of a printed halftone image. The system and method can be configured to employ the approximation technique in a manner that also enables consideration of the effect of misregistration between color separations on the appearance of a printed halftone image. As an alternative, the system and method can be configured to employ a geometrical abstract that effectively centers device spots on the corners of addressable units. This "corner-centered" addressing enables a computationally faster calculation of overlaps when used with either the approximation technique or an analytical technique based on geometric relationships, particularly for device spot diameters between a factor of .sqroot.2 and 2 of the addressability of the halftone device. Finally, the system and method may incorporate a technique for scaling the addressability of color values representative of the halftone printed image without introducing significant artifacts.

    摘要翻译: 可以将用于在多色连续色调装置上表示多色半色调图像的系统和方法配置成采用近似技术来确定基于打印半色调图像的相邻设备点产生的重叠区域的区域 半色调设备型号。 近似技术可以考虑到诸如可寻址性,设备光点尺寸和颜色值的各种半色调设备特性对印刷半色调图像的外观的影响。 该系统和方法可以被配置为采用近似技术,其方式也可以考虑在分色之间对准印刷半色调图像的外观上的对准效应。 作为替代,系统和方法可以被配置为采用有效地将设备点集中在可寻址单元的角上的几何抽象。 当使用近似技术或基于几何关系的分析技术时,这种“以角为中心”的寻址使得能够计算更快地计算重叠,特别是对于半色调装置的寻址能力的2ROOT 2和2之间的装置点直径 。 最后,该系统和方法可以包括用于缩放表示半色调打印图像的颜色值的可寻址性的技术,而不引入显着的伪像。

    Potential field-based gamut mapping
    8.
    发明授权
    Potential field-based gamut mapping 有权
    基于场的色域映射

    公开(公告)号:US08520938B2

    公开(公告)日:2013-08-27

    申请号:US13473914

    申请日:2012-05-17

    IPC分类号: G06K9/00 G09G5/02

    CPC分类号: H04N1/6058

    摘要: A method for adjusting a color in a color space comprises adjusting the color along a gradient path to a point in or on a color gamut. The gradient path is determined from a potential field derived from the color gamut consisting of gamut points in the color space. The potential field can be derived from one or more points in the color gamut and different functions may be used to determine the potentials due to different points in the gamut. The potential at a point in the color space due to the gamut point can be a function, including an inverse power, of distance of the point in the color space from the gamut point. The gradient path can be determined from the gradient of the potential field by quadric error-based surface simplification of a surface mesh representing a surface of the gamut.

    摘要翻译: 用于调整颜色空间中的颜色的方法包括将沿着渐变路径的颜色调整到色域中或其上的点。 从由颜色空间中的色域组成的色域导出的势场确定梯度路径。 可以从色域中的一个或多个点导出势场,并且可以使用不同的功能来确定由于色域中的不同点引起的电位。 由于色域而导致的颜色空间中的某一点的电位可以是颜色空间中的点距色域的距离的函数,包括逆功率。 梯度路径可以通过表示网格表面的表面网格的基于二次误差的表面简化从电场的梯度来确定。

    Modification of color values in page description files
    9.
    发明授权
    Modification of color values in page description files 有权
    修改页面描述文件中的颜色值

    公开(公告)号:US07900144B1

    公开(公告)日:2011-03-01

    申请号:US09534824

    申请日:2000-03-23

    IPC分类号: G06F17/00 G06K15/00

    摘要: Modification of color values in a page description file can be carried out by converting implicit color commands within the page description file to explicit color commands. The color values specified by the explicit color commands within the page description file then are adjusted to calibrate an output device for enhanced color fidelity. Implicit color commands specify color values indirectly, for example, by defining color as a function of other graphic information and color reference values. Consequently, color modification prior to RIP conversion generally is difficult. Conversion and modification of explicit color values provides a higher degree of color conversion accuracy without the need for RIP conversion of the page description file.

    摘要翻译: 通过将页面描述文件中的隐含颜色命令转换为显式颜色命令,可以对页面描述文件中的颜色值进行修改。 由页面描述文件中的显式颜色命令指定的颜色值被调整以校准输出设备以提高色彩保真度。 隐式颜色命令间接指定颜色值,例如通过将颜色定义为其他图形信息和颜色参考值的函数。 因此,在RIP转换之前的颜色修改通常是困难的。 显式颜色值的转换和修改提供了更高程度的颜色转换精度,而不需要对页面描述文件进行RIP转换。

    METHOD FOR MAPPING COLORS BETWEEN IMAGING SYTEMS AND METHOD THEREFOR
    10.
    发明申请
    METHOD FOR MAPPING COLORS BETWEEN IMAGING SYTEMS AND METHOD THEREFOR 审中-公开
    用于在成像动作之间映射颜色的方法及其方法

    公开(公告)号:US20080150960A1

    公开(公告)日:2008-06-26

    申请号:US12020155

    申请日:2008-01-25

    IPC分类号: H04N1/60

    摘要: A method for converting CMYK source device values to CMYK destination device values includes converting the CMYK source device values to a four-color device-independent color space using a source profile with a four-color device-independent color space. The four color device-independent color space is converted to the CMYK destination values using a destination profile with the four color device-independent color space, and three colors of the four color device-independent color space are used to define the color of a combined CMYK values and the remaining device-independent color space color is used to define the color of only a K colorant.

    摘要翻译: 将CMYK源设备值转换为CMYK目标设备值的方法包括使用具有四色设备无关色彩空间的源配置文件将CMYK源设备值转换为四色设备无关色彩空间。 使用具有四色设备无关色彩空间的目的地配置文件将四色设备无关色彩空间转换为CMYK目的地值,并使用四色设备无关色彩空间的三种颜色来定义组合颜色 CMYK值和剩余的与设备无关的颜色空间颜色用于定义仅K着色剂的颜色。