Systems and methods of color conversion with gray values
    31.
    发明授权
    Systems and methods of color conversion with gray values 有权
    使用灰度值进行颜色转换的系统和方法

    公开(公告)号:US08587828B2

    公开(公告)日:2013-11-19

    申请号:US12569631

    申请日:2009-09-29

    CPC分类号: H04N1/58 H04N1/6025

    摘要: Methods and systems herein provide for the color conversion of image data with various levels of gray values, such as text. Such color conversion includes generating a CMYK conversion model by defining a gray region in the perceptual color space of the image data to convert the gray values of the gray region to a range of K values during CMYK color conversion of the image data and segmenting chroma values in a color lookup table that maps perceptual color values to CMYK color values. Lightness values in the color lookup table are adjusted using a perceptual model (e.g., a Heimholtz-Kohlrausch Effect model) based on the segmented chroma values to substantially maintain a lightness relationship between the gray values of the image data and the remaining color values of the image data. The image data is the converted to a CMYK color space using the generated CMYK conversion model.

    摘要翻译: 本文中的方法和系统提供了具有各种灰度值(诸如文本)的图像数据的颜色转换。 这种颜色转换包括通过在图像数据的感知色彩空间中定义灰色区域来生成CMYK转换模型,以在图像数据的CMYK颜色转换期间将灰色区域的灰度值转换为K值的范围,并且对色度值进行分割 在颜色查找表中,将感知颜色值映射到CMYK颜色值。 基于分段色度值,使用感知模型(例如,Heimholtz-Kohlrausch效应模型)来调整颜色查找表中的亮度值,以基本上保持图像数据的灰度值与剩余颜色值之间的亮度关系 图像数据。 使用生成的CMYK转换模型将图像数据转换为CMYK色彩空间。

    Color conversion of image data
    32.
    发明授权
    Color conversion of image data 有权
    图像数据的颜色转换

    公开(公告)号:US08547609B2

    公开(公告)日:2013-10-01

    申请号:US12345504

    申请日:2008-12-29

    申请人: Yue Qiao

    发明人: Yue Qiao

    IPC分类号: G03F3/08

    CPC分类号: H04N1/603

    摘要: Methods and systems herein provide for the color conversion of image data. Such color conversion includes receiving the image data from an input imaging device and generating a CMYK to CIELab model for conversion of the image data to a color gamut of an output imaging device. From there, a table of CMYK color values and corresponding CIELab color values is generated based on the model. The color conversion then includes mapping the CIELab color values of the image data to a CIELab color gamut of the output imaging device such as a printer. The color conversion also includes comparing the mapped CIELab color values to the CIELab color values of the table to retrieve corresponding CMYK color values and processing the retrieved CMYK color values (e.g., via multidimensional optimization) to convert the CIELab color values of the image data to the CIELab color values of the output imaging device.

    摘要翻译: 这里的方法和系统提供图像数据的颜色转换。 这种颜色转换包括从输入成像装置接收图像数据,并产生用于将图像数据转换成输出成像装置的色域的CMYK到CIELab模型。 从那里,基于该模型生成CMYK颜色值和相应CIELab颜色值的表。 然后,颜色转换包括将图像数据的CIELab颜色值映射到诸如打印机的输出成像装置的CIELab色域。 颜色转换还包括将映射的CIELab颜色值与表的CIELab颜色值进行比较,以检索相应的CMYK颜色值并处理检索到的CMYK颜色值(例如,通过多维优化),以将图像数据的CIELab颜色值转换为 输出成像设备的CIELab颜色值。

    Linear processing in color conversion
    33.
    发明授权
    Linear processing in color conversion 有权
    颜色转换中的线性处理

    公开(公告)号:US08368978B2

    公开(公告)日:2013-02-05

    申请号:US12342336

    申请日:2008-12-23

    申请人: Yue Qiao

    发明人: Yue Qiao

    IPC分类号: G03F3/08

    CPC分类号: H04N1/6022 H04N1/6058

    摘要: Methods and systems herein provide for color conversion of image data to another color space, such as that of a printer. Such color conversion includes linearly processing the color conversions when using radial basis functions for the conversions. One color conversion system herein includes a modeling module operable to generate a numerical model according to a radial basis function for converting the color values in the image data to the color space. The numerical model includes error approximations operable to form the radial basis function into a linear process. The system also includes a color converter operable to convert the color values in the image data to the color space based on the numerical model.

    摘要翻译: 这里的方法和系统提供了将图像数据颜色转换为另一个颜色空间,如打印机的颜色空间。 当使用用于转换的径向基函数时,这种颜色转换包括线性处理颜色转换。 这里的一个颜色转换系统包括建模模块,其可操作以根据用于将图像数据中的颜色值转换为颜色空间的径向基函数生成数值模型。 数值模型包括可操作以将径向基函数形成线性过程的误差近似。 该系统还包括颜色转换器,其可操作以基于数字模型将图像数据中的颜色值转换为颜色空间。

    CMYK COLOR CONVERSION USING ITERATIVE COORDINATE REVISION
    34.
    发明申请
    CMYK COLOR CONVERSION USING ITERATIVE COORDINATE REVISION 有权
    CMYK颜色转换使用迭代坐标修改

    公开(公告)号:US20120218569A1

    公开(公告)日:2012-08-30

    申请号:US13036221

    申请日:2011-02-28

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6022

    摘要: Systems and methods for color conversion from one CMYK color space to another CMYK color space. The system receives a color defined by a first coordinate in the first CMYK color space. The system converts the color to a second coordinate for the second CMYK color space, and determines a location in a perceptual color space for each of the first coordinate and the second coordinate. The system further identifies a distance between the locations in the perceptual color space, and reduces the distance in the perceptual color space between the two locations by iteratively revising the second coordinate in the second CMYK color space while holding the black level of the second coordinate constant.

    摘要翻译: 从一个CMYK颜色空间到另一个CMYK颜色空间的颜色转换的系统和方法。 系统接收由第一个CMYK颜色空间中的第一个坐标定义的颜色。 系统将颜色转换为第二CMYK颜色空间的第二坐标,并且确定第一坐标和第二坐标中的每一个的感知颜色空间中的位置。 该系统进一步识别感知色彩空间中的位置之间的距离,并且通过在保持第二坐标常数的黑色电平的同时迭代地修改第二CMYK颜色空间中的第二坐标来减小两个位置之间感知色彩空间中的距离 。

    OUTPUTTING GRAY COLOR VALUES IN COLOR-MANAGED CMYK TO CMYK COLOR CONVERSIONS BASED ON INPUT GRAY COLOR VALUES
    36.
    发明申请
    OUTPUTTING GRAY COLOR VALUES IN COLOR-MANAGED CMYK TO CMYK COLOR CONVERSIONS BASED ON INPUT GRAY COLOR VALUES 有权
    将颜色管理的CMYK中的灰色颜色值输入到基于输入灰色颜色值的CMYK颜色转换

    公开(公告)号:US20110109943A1

    公开(公告)日:2011-05-12

    申请号:US12616927

    申请日:2009-11-12

    IPC分类号: H04N1/40 G06K9/00 G03F3/08

    CPC分类号: H04N1/6025 H04N1/603

    摘要: Methods and systems herein provide for CMYK color conversion of input image data while preserving K color values during the conversion process. A color management module is operable to convert input image data from one color space to a CMYK color space. For example, the color management module may convert the image data of one device operating in a CMYK color space to a CMYK color space of another device. In doing so, the color management module preserves or maintains the K color values of the input image data during the CMYK to CMYK color conversion. The color management module may implement such by modifying input and output ICC profiles and interpolating the perceptual lightness values of the input ICC profile within the output lookup table.

    摘要翻译: 本文的方法和系统提供输入图像数据的CMYK颜色转换,同时在转换过程期间保留K个颜色值。 颜色管理模块可操作以将输入图像数据从一个颜色空间转换为CMYK颜色空间。 例如,颜色管理模块可以将在CMYK颜色空间中操作的一个设备的图像数据转换为另一个设备的CMYK颜色空间。 这样做时,颜色管理模块在CMYK到CMYK颜色转换期间保留或维持输入图像数据的K色值。 颜色管理模块可以通过修改输入和输出ICC简档并且在输出查找表内插入输入ICC简档的感知亮度值来实现。

    Cobalt-rich wear resistant alloy and method of making and use thereof
    37.
    发明授权
    Cobalt-rich wear resistant alloy and method of making and use thereof 有权
    富钴耐磨合金及其制造和使用方法

    公开(公告)号:US07754143B2

    公开(公告)日:2010-07-13

    申请号:US12081366

    申请日:2008-04-15

    摘要: A cobalt-rich wear resistant and corrosion resistant alloy comprises in weight %, 0.5 to 1.2% C, 0.6 to 2.1% Si, 17 to 24% Cr, 27 to 38.5% Fe, 1.4 to 20% W, 3.8 to 9.7% Mo, less than 1% Ni and balance Co. A preferred cobalt-rich alloy comprises in weight %, 0.5 to 0.9 C, 0.75 to 1.15% Si, 17.5 to 20.5 Cr, 27.0 to 32.0 Fe, 12.5 to 16.5 W, 6.25 to 8.25 Mo, 0.45 to 1.00 Ni and balance Co. The alloy preferably has a microstructure free of primary carbides and comprises up to about 50% by volume eutectic reaction phases in a solid solution matrix. The solid solution matrix is an αFe-αCo face-centered cubic solution with W, Cr and Mo as solute elements and the eutectic reaction products comprise a (Co,Cr)7(W,Mo)6 phase and an αFe-αCo phase. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines.

    摘要翻译: 富含钴的耐磨和耐腐蚀合金包括重量百分比为0.5至1.2%的C,0.6至2.1%的Si,17至24%的Cr,27至38.5%的Fe,1.4至20%的W,3.8至9.7%的Mo ,少于1%的Ni和余量的Co。优选的富钴合金包含重量%,0.5-0.9℃,0.75到1.15%的Si,17.5到20.5Cr,27.0到32.0Fe,12.5到16.5W,6.25到8.25 Mo,0.45〜1.00Ni和余量Co。合金优选具有不含一次碳化物的微结构,并且在固溶体基体中包含高达约50体积%的共晶反应相。 固溶体基体是以W,Cr和Mo为溶质的αFe-αCo面心立方溶液,共晶反应产物包含(Co,Cr)7(W,Mo)6相和αFe-αCo相。 该合金可用作内燃机例如柴油发动机的阀座插件。

    GAMUT MAPPING BASED ON NUMERICAL AND PERCEPTUAL MODELS
    38.
    发明申请
    GAMUT MAPPING BASED ON NUMERICAL AND PERCEPTUAL MODELS 有权
    基于数字和模式的GAMUT映射

    公开(公告)号:US20100097622A1

    公开(公告)日:2010-04-22

    申请号:US12253543

    申请日:2008-10-17

    IPC分类号: H04N1/60

    CPC分类号: H04N1/6058

    摘要: Methods and systems herein provide for color conversion. Such color conversion includes gamut mapping by determining a color gamut of an imaging device and receiving color data having color values external to the color gamut of the imaging device. The gamut mapping proceeds by determining a color region external to the color gamut and mapping the color values within the color region to the color gamut. Thereafter, the area of the color region is increased and the color values within the increased color region are mapped to the color gamut.

    摘要翻译: 本文的方法和系统提供了颜色转换。 这种颜色转换包括通过确定成像装置的色域并接收具有彩色值在成像装置的色域外部的色彩数据的色域映射。 色域映射通过确定色域外部的颜色区域并将颜色区域内的颜色值映射到色域来进行。 此后,颜色区域的面积增加,并且增加的颜色区域内的颜色值被映射到色域。

    Cobalt-rich wear resistant alloy and method of making and use thereof
    39.
    发明申请
    Cobalt-rich wear resistant alloy and method of making and use thereof 有权
    富钴耐磨合金及其制造和使用方法

    公开(公告)号:US20090257906A1

    公开(公告)日:2009-10-15

    申请号:US12081366

    申请日:2008-04-15

    摘要: A cobalt-rich wear resistant and corrosion resistant alloy comprises in weight %, 0.5 to 1.2% C, 0.6 to 2.1% Si, 17 to 24% Cr, 27 to 38.5% Fe, 1.4 to 20% W, 3.8 to 9.7% Mo, less than 1% Ni and balance Co. A preferred cobalt-rich alloy comprises in weight %, 0.5 to 0.9 C, 0.75 to 1.15% Si, 17.5 to 20.5 Cr, 27.0 to 32.0 Fe, 12.5 to 16.5 W, 6.25 to 8.25 Mo, 0.45 to 1.00 Ni and balance Co. The alloy preferably has a microstructure free of primary carbides and comprises up to about 50% by volume eutectic reaction phases in a solid solution matrix. The solid solution matrix is an αFe-αCo face-centered cubic solution with W, Cr and Mo as solute elements and the eutectic reaction products comprise a (Co, Cr)7(W,Mo)6 phase and an αFe-αCo phase. The alloy is useful as a valve seat insert for internal combustion engines such as diesel engines.

    摘要翻译: 富含钴的耐磨和耐腐蚀合金包括重量百分比为0.5至1.2%的C,0.6至2.1%的Si,17至24%的Cr,27至38.5%的Fe,1.4至20%的W,3.8至9.7%的Mo ,少于1%的Ni和余量的Co。优选的富钴合金包含重量%,0.5-0.9℃,0.75到1.15%的Si,17.5到20.5Cr,27.0到32.0Fe,12.5到16.5W,6.25到8.25 Mo,0.45〜1.00Ni和余量Co。合金优选具有不含一次碳化物的微结构,并且在固溶体基体中包含高达约50体积%的共晶反应相。 固溶体基质是具有W,Cr和Mo作为溶质元素的αFe-αCo面心立方溶液,共晶反应产物包含(Co,Cr)7(W,Mo)6相和αFe-αCo相。 该合金可用作内燃机例如柴油发动机的阀座插件。

    Halftone apparatus that provides simultaneous, multiple lines per inch screens
    40.
    发明申请
    Halftone apparatus that provides simultaneous, multiple lines per inch screens 有权
    半色调设备可同时提供每英寸屏幕多行

    公开(公告)号:US20080068659A1

    公开(公告)日:2008-03-20

    申请号:US11879888

    申请日:2006-09-06

    IPC分类号: H04N1/40

    CPC分类号: H04N1/405

    摘要: A halftone threshold matrix includes a plurality of submatrices, wherein a first group of the plurality of submatrices has a line screen frequency different from a second group of the plurality of submatrices. The halftone method and apparatus removes the restriction that at most one pel is turned on per basic cell for the next constant input level and allows the pels in some basic cells to be turned on much sooner that the corresponding positions in other basic cells. This creates a dominant low frequency line screen simultaneously with the higher frequency line screen of the other basic cells. The present invention also allows the basic cells inside the threshold matrix to have different shapes and sizes. Thus, the cells participating in the low frequency screen could be larger than the cells generating the higher frequency screen. for example, the low frequency screen's pleasing patterns can distract the eye from noticing less pleasing patterns in the high frequency grid and vice versa.

    摘要翻译: 半色调阈值矩阵包括多个子矩阵,其中多个子矩阵中的第一组具有与多个子矩阵的第二组不同的行画面频率。 半色调方法和装置去除了对于下一个恒定输入电平,每个基本单元至多打开一个像素的限制,并允许一些基本单元中的像素更快地打开其它基本单元中的相应位置。 这与其他基本单元的较高频率线屏幕同时产生主导低频线屏幕。 本发明还允许阈值矩阵内的基本单元具有不同的形状和尺寸。 因此,参与低频屏幕的单元可以大于产生较高频率屏幕的单元。 例如,低频屏幕的令人愉悦的图案可以分散注意力,注意高频电网中不太令人愉快的图案,反之亦然。