Positional distortion compensation
    51.
    发明授权
    Positional distortion compensation 有权
    位置失真补偿

    公开(公告)号:US08068695B2

    公开(公告)日:2011-11-29

    申请号:US12266624

    申请日:2008-11-07

    IPC分类号: G06K9/32

    CPC分类号: G06K9/3275

    摘要: A de-warp map is generated by applying principal component analysis (PCA) to vectors describing aspects of identified features of an object in an image. PCA provides vectors and coefficients describing curvature or image warping at selected points in the image. Estimates of the warping of the image generally are generated by interpolation and/or extrapolation from the vectors and coefficients provided by PCA. In some applications only two features need be identified. For example, the complicated curvature of the facing pages of an open book can be characterized by two vectors describing positions of top and bottom edges of the book. In such applications PCA can reduce to vector subtraction to determine a basis vector, vector addition and scaling to determine an average vector and simple assignment of known coefficient values. The de-warping map can be used to generate a de-warped version of the image.

    摘要翻译: 通过将主成分分析(PCA)应用于描述图像中的物体的已识别特征的方面的矢量来生成去扭曲图。 PCA提供描述图像中所选点的曲率或图像变形的向量和系数。 图像翘曲的估计通常由PCA提供的向量和系数的插值和/或外插产生。 在某些应用中,只需要识别两个特征。 例如,打开的书的面对页面的复杂曲率可以由描述书籍的顶部和底部边缘的位置的两个向量来表征。 在这种应用中,PCA可以减少到矢量减法,以确定基矢量,向量加法和缩放以确定平均矢量并简单分配已知系数值。 去翘曲图可用于生成图像的去翘曲版本。

    Hypochromatic imaging
    52.
    发明授权
    Hypochromatic imaging 有权
    低色成像

    公开(公告)号:US08068256B2

    公开(公告)日:2011-11-29

    申请号:US12111267

    申请日:2008-04-29

    IPC分类号: G06F15/00 G06K1/00 H04N1/60

    CPC分类号: H04N1/52 H04N1/4055

    摘要: Color management constraints on the use of selected hypocolorant(s) and a black colorant in the rendering of a given pixel reduce ink or toner usage and/or reduce pressure on an ink limit. Additionally, the enforcement of this mutual exclusivity between the black and the selected hypocolorant(s) allows screen frequencies and angles to be shared between halftone screens used for the black colorant and a selected hypocolorant. This reduces the likelihood of objectionable moiré associated with the use of hypocolorant colorants in addition to the conventional CMY(K) colorants. In some embodiments, color management constraints prevent the use of black colorant for pixels beyond a threshold lightness or luminance. This constraint allows the use of the selected hypocolorants in the region of color space beyond the threshold. The threshold can be a function of hue and/or chroma. In some embodiments the threshold is a constant.

    摘要翻译: 在给定像素的渲染中使用选择的低色素和黑色着色剂的色彩管理约束减少墨水或墨粉的使用和/或降低墨水极限上的压力。 另外,黑色和所选择的低颜料之间的相互独占性的实施允许屏幕频率和角度在用于黑色着色剂的半色调屏幕和选定的低色料之间共享。 这减少了除了常规CMY(K)着色剂之外与使用低色素着色剂相关的令人反感的莫尔的可能性。 在一些实施例中,颜色管理约束阻止使用黑色着色剂超过阈值亮度或亮度的像素。 该约束允许在超出阈值的颜色空间区域中使用选定的低色素。 阈值可以是色调和/或色度的函数。 在一些实施例中,阈值是常数。

    TONER COMPOSITIONS
    53.
    发明申请
    TONER COMPOSITIONS 有权
    调色剂组合物

    公开(公告)号:US20110177441A1

    公开(公告)日:2011-07-21

    申请号:US12689473

    申请日:2010-01-19

    IPC分类号: G03G9/09 G03G9/08

    摘要: The present disclosure provides processes for producing images of excellent color fidelity when incorporating a cyan toner with a lower colorant loading in addition to a first cyan toner. In embodiments, the cyan pigmented particles may be cyan emulsion aggregation toners. In accordance with the present disclosure, a pair of cyan toners are matched in color, wherein the color of a first cyan toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second cyan toner, which is lighter than the first cyan toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light cyan toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 500 and 600 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers.

    摘要翻译: 本公开提供了当除了第一青色调色剂之外,当结合具有较低着色剂负载的青色调色剂时,产生具有优良色彩保真度的图像的方法。 在实施方案中,青色着色颗粒可以是青色乳液聚集调色剂。 根据本公开,一对青色调色剂的颜色相匹配,其中印刷在基板上的预定半色调区域上的第一青色调色剂的颜色基本上与固体(100%)印刷贴片的颜色匹配 第二青色调色剂比第一青色调色剂轻,从而避免了印刷品上可见的色调偏移,否则会令人反感。 在实施方案中,通过添加色调调节着色剂或吸收500和600纳米之间的波长的着色剂的组合,并且可选地添加调色剂或着色剂的组合,所述着色剂吸收波长在 400和500纳米。

    SYSTEMS AND METHODS FOR ESTIMATING THE COLOR OF COATED PRINTS
    54.
    发明申请
    SYSTEMS AND METHODS FOR ESTIMATING THE COLOR OF COATED PRINTS 有权
    用于估算涂布印刷品颜色的系统和方法

    公开(公告)号:US20110032546A1

    公开(公告)日:2011-02-10

    申请号:US12537696

    申请日:2009-08-07

    IPC分类号: H04N1/60

    摘要: A method for estimating the color of a coated print includes: measuring the color of an uncoated print with a color measuring device; and estimating the color of the print when coated by a coating process based on the uncoated color measurement using a function that correlates uncoated color measurements and coated color measurements; and adjusting at least one parameter of the printing process based on the coated color estimation. The correlating function may be derived by measuring the color of a plurality of uncoated color patches; measuring the color of the plurality of patches after the patches have been coated by the coating process; and correlating the color of the coated patches with the uncoated patches based on the coated and uncoated color patch measurements.

    摘要翻译: 用于估计涂布印刷品的颜色的方法包括:用彩色测量装置测量未涂覆印刷品的颜色; 以及使用使未涂布的颜色测量和涂覆的颜色测量相关联的功能,基于未涂覆的颜色测量,通过涂布工艺涂布时估计印刷物的颜色; 以及基于所述涂覆的颜色估计来调整所述打印处理的至少一个参数。 相关函数可以通过测量多个未涂覆的色块的颜色来得到; 在通过涂布工艺涂覆贴片之后测量多个贴片的颜色; 并且基于涂覆和未涂覆的色块测量值将涂覆的斑块的颜色与未涂覆的贴片相关联。

    SPATIALLY BASED TRANSFORMATION OF SPOT COLORS
    55.
    发明申请
    SPATIALLY BASED TRANSFORMATION OF SPOT COLORS 有权
    SPOT颜色的空间变换

    公开(公告)号:US20100284615A1

    公开(公告)日:2010-11-11

    申请号:US12437660

    申请日:2009-05-08

    IPC分类号: G06K9/00

    摘要: Colorant recipes for spot colors, or colors associated with vector graphic objects, are transformed to compensate for spatial variation in a rendering device. Inverted Jacobians of color production performance can be used to transform color deviations into colorant recipe changes. The colorant recipe changes are applied to original colorant recipes to provide the transformed colorant recipes. Jacobians can be determined by exercising a system model according to perturbations of the colorant recipes. Alternatively, test patches or strips based on perturbed original colorant recipes can be rendered and measured and the Jacobians can be based on such measurements. Alternatively, spatially dependent tone reproduction curves can be used to transform the colorant recipes associated with the vector graphic objects. Image processing systems can include a spatial variation information determiner, a spatial compensation information determiner and a colorant recipe transformer.

    摘要翻译: 用于专色的颜色配方或与矢量图形对象相关联的颜色进行变换,以补偿渲染设备中的空间变化。 反色Jacobians的色彩生产性能可用于将颜色偏差转化为色素配方更改。 着色剂配方变化适用于原始着色剂配方以提供转化的着色剂配方。 Jacobians可以通过根据着色剂配方的扰动行使系统模型来确定。 或者,可以渲染和测量基于干扰的原始着色剂配方的测试贴片或条纹,并且Jacobians可以基于这样的测量。 或者,空间依赖色调再现曲线可用于变换与矢量图形对象相关联的着色剂配方。 图像处理系统可以包括空间变化信息确定器,空间补偿信息确定器和着色剂配方变换器。

    POSITIONAL DISTORTION COMPENSATION
    56.
    发明申请
    POSITIONAL DISTORTION COMPENSATION 有权
    位置失真补偿

    公开(公告)号:US20100119158A1

    公开(公告)日:2010-05-13

    申请号:US12266624

    申请日:2008-11-07

    IPC分类号: G06K9/48 G06K9/40

    CPC分类号: G06K9/3275

    摘要: A de-warp map is generated by applying principal component analysis (PCA) to vectors describing aspects of identified features of an object in an image. PCA provides vectors and coefficients describing curvature or image warping at selected points in the image. Estimates of the warping of the image generally are generated by interpolation and/or extrapolation from the vectors and coefficients provided by PCA. In some applications only two features need be identified. For example, the complicated curvature of the facing pages of an open book can be characterized by two vectors describing positions of top and bottom edges of the book. In such applications PCA can reduce to vector subtraction to determine a basis vector, vector addition and scaling to determine an average vector and simple assignment of known coefficient values. The de-warping map can be used to generate a de-warped version of the image.

    摘要翻译: 通过将主成分分析(PCA)应用于描述图像中的物体的已识别特征的方面的矢量来生成去扭曲图。 PCA提供描述图像中所选点的曲率或图像变形的向量和系数。 图像翘曲的估计通常由PCA提供的向量和系数的插值和/或外插产生。 在某些应用中,只需要识别两个特征。 例如,打开的书的面对页面的复杂曲率可以由描述书籍的顶部和底部边缘的位置的两个向量来表征。 在这种应用中,PCA可以减少到矢量减法,以确定基矢量,向量加法和缩放以确定平均矢量,并简单分配已知系数值。 去翘曲图可用于生成图像的去翘曲版本。

    HYPOCHROMATIC IMAGING
    57.
    发明申请

    公开(公告)号:US20090268218A1

    公开(公告)日:2009-10-29

    申请号:US12111267

    申请日:2008-04-29

    IPC分类号: H04N1/60

    CPC分类号: H04N1/52 H04N1/4055

    摘要: Color management constraints on the use of selected hypocolorant(s) and a black colorant in the rendering of a given pixel reduce ink or toner usage and/or reduce pressure on an ink limit. Additionally, the enforcement of this mutual exclusivity between the black and the selected hypocolorant(s) allows screen frequencies and angles to be shared between halftone screens used for the black colorant and a selected hypocolorant. This reduces the likelihood of objectionable moiré associated with the use of hypocolorant colorants in addition to the conventional CMY(K) colorants. In some embodiments, color management constraints prevent the use of black colorant for pixels beyond a threshold lightness or luminance. This constraint allows the use of the selected hypocolorants in the region of color space beyond the threshold. The threshold can be a function of hue and/or chroma. In some embodiments the threshold is a constant.

    摘要翻译: 在给定像素的渲染中使用选择的低色素和黑色着色剂的色彩管理约束减少墨水或墨粉的使用和/或降低墨水极限上的压力。 另外,黑色和所选择的低颜料之间的相互独占性的实施允许屏幕频率和角度在用于黑色着色剂的半色调屏幕和选定的低色料之间共享。 这减少了除了常规CMY(K)着色剂之外与使用低色素着色剂相关的令人反感的莫尔的可能性。 在一些实施例中,颜色管理约束阻止使用黑色着色剂超过阈值亮度或亮度的像素。 该约束允许在超出阈值的颜色空间区域中使用选定的低色素。 阈值可以是色调和/或色度的函数。 在一些实施例中,阈值是常数。

    Inter-separation decorrelator
    58.
    发明授权
    Inter-separation decorrelator 有权
    分离间去相干器

    公开(公告)号:US07486416B2

    公开(公告)日:2009-02-03

    申请号:US11143818

    申请日:2005-06-02

    CPC分类号: H04N1/6038 H04N1/6041

    摘要: Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).

    摘要翻译: 从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。 确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。 还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。 图像数据通过去相关功能进行处理,从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。 可选地,还通过空间依赖的单一着色剂补偿功能来处理图像数据,由此产生着色剂值,其对着色剂外观不均匀性的两个方面进行补偿。 可以在不同的空间和时间频率或分辨率下确定,校准和/或存储两种补偿功能。 可以采用一种或两种补偿功能来保持多个渲染设备(例如,标记引擎)之间的一致性。

    System for printing color images with extra colorants in addition to
primary colorants
    60.
    发明授权
    System for printing color images with extra colorants in addition to primary colorants 失效
    除了初级着色剂之外,还可以使用额外的着色剂打印彩色图像

    公开(公告)号:US5892891A

    公开(公告)日:1999-04-06

    申请号:US753131

    申请日:1996-11-20

    IPC分类号: H04N1/54 H04N1/50

    CPC分类号: H04N1/54

    摘要: In a "hi-fi" color printing system, wherein colorants of hi-fi colors beyond the regular CMYK primary colorants are available, a main gamut obtainable with the CMYK colorants only is mutually exclusive with at least one extended gamut in which a hi-fi colorant is used and a complementary one of the CMY colorants is excluded. Because the main and extended gamuts are mutually exclusive, no more than four colorants are used in any part of the image, and no more than four halftone screens need be used to obtain any desired color.

    摘要翻译: 在“Hi-Fi”彩色打印系统中,其中超过常规CMYK原色剂的高保真色彩的着色剂是可获得的,用CMYK着色剂可获得的主色域仅与至少一个扩展色域相互排斥,其中hi- 使用纤维素着色剂,并排除CMY着色剂中的一种。 因为主色域和扩展色域是相互排斥的,所以在图像的任何部分都不能使用四种以上的着色剂,并且不需要使用不超过四个半色调屏幕来获得所需的颜色。