公开(公告)号：US08384961B2

公开(公告)日：2013-02-26

申请号：US11326310

申请日：2006-01-06

申请人： Min-ki Cho ,  Heul-keun Choh ,  Dae-won Kim ,  Byoung-ho Kang

发明人： Min-ki Cho ,  Heul-keun Choh ,  Dae-won Kim ,  Byoung-ho Kang

IPC分类号： H04N1/40

CPC分类号： H04N1/646 ,  H04N1/628

摘要： Disclosed is a method of creating a color-mapping lookup table and a color-mapping method using the same. The method of creating a color-mapping lookup table includes; obtaining color-space data for respective solid colors specified as lattice points of the color-mapping lookup table, obtaining color-space data for respective achromatic colors specified as lattice points of the color-mapping lookup table, and tabulating the color-space data for the respective solid colors specified as the lattice points and the color-space for the respective achromatic colors specified as the lattice points. Therefore, the methods can create a color-mapping LUT in which significant colors such as solid colors or achromatic colors are specified as lattice points, so that significant colors are more optimally reproduced since device data for the significant colors are not calculated through interpolation.

摘要翻译： 公开了一种创建颜色映射查找表的方法和使用其的颜色映射方法。 创建颜色映射查找表的方法包括： 获取作为色彩映射查找表的格点指定的各个实心颜色的颜色空间数据，获得作为颜色映射查找表的格点指定的各种无彩色的颜色空间数据，并列出颜色空间数据 指定为晶格点的各个固体颜色以及指定为晶格点的各个无彩色的颜色空间。 因此，该方法可以创建颜色映射LUT，其中将诸如纯色或无色颜色的有色颜色指定为网格点，使得由于不通过插值计算显着颜色的设备数据，所以显着颜色被更优化地再现。

公开(公告)号：US20060158671A1

公开(公告)日：2006-07-20

申请号：US11326310

申请日：2006-01-06

申请人： Min-ki Cho ,  Heul-keun Choh ,  Dae-won Kim ,  Byoung-ho Kang

发明人： Min-ki Cho ,  Heul-keun Choh ,  Dae-won Kim ,  Byoung-ho Kang

IPC分类号： H04N1/60

CPC分类号： H04N1/646 ,  H04N1/628

摘要： Disclosed is a method of creating a color-mapping lookup table and a color-mapping method using the same. The method of creating a color-mapping lookup table includes; obtaining color-space data for respective solid colors specified as lattice points of the color-mapping lookup table, obtaining color-space data for respective achromatic colors specified as lattice points of the color-mapping lookup table, and tabulating the color-space data for the respective solid colors specified as the lattice points and the color-space for the respective achromatic colors specified as the lattice points. Therefore, the methods can create a color-mapping LUT in which significant colors such as solid colors or achromatic colors are specified as lattice points, so that significant colors are more optimally reproduced since device data for the significant colors are not calculated through interpolation.

公开(公告)号：US07626742B2

公开(公告)日：2009-12-01

申请号：US11354927

申请日：2006-02-16

申请人： Min-ki Cho ,  Dae-won Kim ,  Heui-keun Cho ,  Byoung-ho Kang

发明人： Min-ki Cho ,  Dae-won Kim ,  Heui-keun Cho ,  Byoung-ho Kang

IPC分类号： G03F3/08 ,  H04N1/46 ,  G06K9/00

CPC分类号： H04N1/6022 ,  H04N1/6058

摘要： A color data conversion apparatus and method. The color data conversion apparatus includes a K ratio calculator for outputting a K ratio that is calculated using entered color data; a K ratio adjuster for adjusting the calculated K ratio, which is output from the K ratio calculator, in reference to gamut boundary descriptors (GBDs) corresponding to a K ratio and outputting the adjusted K ratio as a final K ratio; and a CMY ratio calculator for calculating C, M, and Y ratios based on the final K ratio. When converting the entered color data to the CMYK data, the calculated K ratio can be adjusted to the K ratio printable by use of the K GBDs. Accordingly, the printing apparatus can substantially print according to the calculated K ratio and thus the degradation of the printing quality can be avoided.

摘要翻译： 一种彩色数据转换装置和方法。 彩色数据转换装置包括：K比率计算器，用于输出使用输入的颜色数据计算出的K比; 相对于与K比对应的色域边界描述符（GBD），调整从K比计算器输出的计算出的K比的K比率调整器，并输出调整后的K比作为最终的K比; 以及基于最终K比计算C，M和Y比率的CMY比率计算器。 将输入的颜色数据转换为CMYK数据时，可以将计算的K比率调整为使用K GBD可打印的K比率。 因此，打印装置可以根据计算出的K比进行实质的打印，从而可以避免打印质量的劣化。

公开(公告)号：US20060170940A1

公开(公告)日：2006-08-03

申请号：US11305244

申请日：2005-12-19

申请人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Choh ,  Min-ki Cho

发明人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Choh ,  Min-ki Cho

IPC分类号： H04N1/60

CPC分类号： H04N1/6058

摘要： Apparatuses and methods for performing gamut compression. A gamut mapping apparatus of the invention includes a gamut analyzing unit for analyzing the gamut of a source device and the gamut of a target device using a gamut information profile; a gamut compressing unit for mapping original images of the source device within the gamut of the target device by using the analytical information on the gamuts; and a gamut extending unit for increasing the chroma of predetermined images among the compressed original images on the basis of the analytical information on the gamuts and the performance result of the gamut compressing unit.

公开(公告)号：US20060182336A1

公开(公告)日：2006-08-17

申请号：US11354927

申请日：2006-02-16

申请人： Min-ki Cho ,  Dae-won Kim ,  Heui-keun Cho ,  Byoung-ho Kang

发明人： Min-ki Cho ,  Dae-won Kim ,  Heui-keun Cho ,  Byoung-ho Kang

IPC分类号： G06K9/00

CPC分类号： H04N1/6022 ,  H04N1/6058

摘要： A color data conversion apparatus and method. The color data conversion apparatus includes a K ratio calculator for outputting a K ratio that is calculated using entered color data; a K ratio adjuster for adjusting the calculated K ratio, which is output from the K ratio calculator, in reference to gamut boundary descriptors (GBDs) corresponding to a K ratio and outputting the adjusted K ratio as a final K ratio; and a CMY ratio calculator for calculating C, M, and Y ratios based on the final K ratio. When converting the entered color data to the CMYK data, the calculated K ratio can be adjusted to the K ratio printable by use of the K GBDs. Accordingly, the printing apparatus can substantially print according to the calculated K ratio and thus the degradation of the printing quality can be avoided.

公开(公告)号：US07852535B2

公开(公告)日：2010-12-14

申请号：US11328142

申请日：2006-01-10

申请人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Cho ,  Min-ki Cho

发明人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Cho ,  Min-ki Cho

IPC分类号： G03F3/08

CPC分类号： H04N1/6058 ,  H04N1/6022

摘要： An apparatus and method for converting color data are provided. The method includes generating a CMYK color gamut extended from a CMY color gamut that consists of a cyan (C) colorant, a magenta (M) colorant, and a yellow (Y) colorant, by use of the CMY color gamut and a black (K) colorant; mapping input colors using the generated CMYK color gamut; converting color data of the mapped input colors to CMY data; and converting the CMY data to CMYK data. Accordingly, natural representation and printing of low-lightness colors and high-saturation colors can be attained.

摘要翻译： 提供了一种用于转换颜色数据的设备和方法。 该方法包括通过使用CMY色域和黑色（C）着色剂，品红色（M）着色剂和黄色（Y）着色剂从CMY色域扩展的CMYK色域生成CMYK色域， K）着色剂; 使用生成的CMYK色域映射输入颜色; 将映射的输入颜色的颜色数据转换为CMY数据; 并将CMY数据转换为CMYK数据。 因此，可以获得低亮度颜色和高饱和度色彩的自然表现和打印。

公开(公告)号：US07583411B2

公开(公告)日：2009-09-01

申请号：US11305244

申请日：2005-12-19

申请人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Choh ,  Min-ki Cho

发明人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Choh ,  Min-ki Cho

IPC分类号： H04N1/40

CPC分类号： H04N1/6058

摘要： Apparatuses and methods for performing gamut compression. A gamut mapping apparatus of the invention includes a gamut analyzing unit for analyzing the gamut of a source device and the gamut of a target device using a gamut information profile; a gamut compressing unit for mapping original images of the source device within the gamut of the target device by using the analytical information on the gamuts; and a gamut extending unit for increasing the chroma of predetermined images among the compressed original images on the basis of the analytical information on the gamuts and the performance result of the gamut compressing unit.

摘要翻译： 用于执行色域压缩的装置和方法。 本发明的色域映射装置包括：色域分析单元，用于使用色域信息简档来分析源设备的色域和目标设备的色域; 色域压缩单元，用于通过使用色域上的分析信息来映射目标设备的色域内的源设备的原始图像; 以及色域扩展单元，用于根据关于色域和色域压缩单元的性能结果的分析信息，增加压缩的原始图像中的预定图像的色度。

公开(公告)号：US20060170941A1

公开(公告)日：2006-08-03

申请号：US11328142

申请日：2006-01-10

申请人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Cho ,  Min-ki Cho

发明人： Byoung-ho Kang ,  Dae-won Kim ,  Heui-keun Cho ,  Min-ki Cho

IPC分类号： H04N1/60

CPC分类号： H04N1/6058 ,  H04N1/6022

摘要： An apparatus and method for converting color data are provided. The method includes generating a CMYK color gamut extended from a CMY color gamut that consists of a cyan (C) colorant, a magenta (M) colorant, and a yellow (Y) colorant, by use of the CMY color gamut and a black (K) colorant; mapping input colors using the generated CMYK color gamut; converting color data of the mapped input colors to CMY data; and converting the CMY data to CMYK data. Accordingly, natural representation and printing of low-lightness colors and high-saturation colors can be attained.

摘要翻译： 提供了一种用于转换颜色数据的设备和方法。 该方法包括通过使用CMY色域和黑色（C）着色剂，品红色（M）着色剂和黄色（Y）着色剂从CMY色域扩展的CMYK色域生成CMYK色域， K）着色剂; 使用生成的CMYK色域映射输入颜色; 将映射的输入颜色的颜色数据转换为CMY数据; 并将CMY数据转换为CMYK数据。 因此，可以获得低亮度颜色和高饱和度色彩的自然表现和打印。

公开(公告)号：US20080181493A1

公开(公告)日：2008-07-31

申请号：US11984685

申请日：2007-11-20

申请人： Min-ki Cho ,  Ronnier Luo ,  Heul-keun Choh ,  Byouno-ho Kang

发明人： Min-ki Cho ,  Ronnier Luo ,  Heul-keun Choh ,  Byouno-ho Kang

IPC分类号： G06K9/00

CPC分类号： G06K9/00684 ,  G06F16/5838

摘要： A classifying of an input image into a business graphic image or a photo image, such as in image calibration of the image. A system classifying an input image into at least one of a business graphic image and a photo image includes a color space transform unit transforming the input image into components of a lightness-saturation color space, a lightness analysis unit calculating a lightness frequency distribution of lightness components among the transformed components, a saturation analysis unit calculating an average of saturation components among the transformed components, and an image classification unit comparing an estimation function using the calculated lightness frequency distribution and the average of the saturation components and a threshold value so as to classify the input image.

摘要翻译： 将输入图像分类为商业图形图像或照片图像，例如图像的图像校准。 将输入图像分类为商业图形图像和照片图像中的至少一个的系统包括将输入图像变换为亮度饱和度颜色空间的分量的颜色空间变换单元，计算亮度的亮度分布的亮度分析单元 变换分量中的分量，饱和度分析单元，计算变换分量之间的饱和分量的平均值;以及图像分类单元，使用所计算的亮度频率分布和饱和分量的平均值与阈值进行比较估计函数，以便 对输入图像进行分类。

公开(公告)号：US20070195382A1

公开(公告)日：2007-08-23

申请号：US11604803

申请日：2006-11-28

申请人： Min-ki Cho ,  Byoung-ho Kang ,  Heui-keun Choh ,  Ronnier Luo

发明人： Min-ki Cho ,  Byoung-ho Kang ,  Heui-keun Choh ,  Ronnier Luo

IPC分类号： G03F3/08

CPC分类号： H04N1/6058

摘要： A gamut-mapping apparatus includes a color-coordinate-conversion module which converts color coordinate values of an inputted color sample to values of a spherical coordinate system, and which divides the spherical coordinate system into a predetermined number of segments; a judgment module which detects color coordinate values having a largest radius among color coordinate values included in the divided segments; and a gamut-boundary-setup module which detects the color coordinate value having a greatest radius, which is most adjacent to a center of each segment, according to the divided segments based on the detected color coordinate values having the largest radius among color coordinate values included in the divided segments, and which sets a gamut boundary. The spherical coordinate system is divided based on a hue value and a largest chroma value with respect to each hue.

摘要翻译： 色域映射装置包括色坐标转换模块，其将输入的颜色样本的色坐标值转换为球坐标系的值，并将球坐标系划分成预定数目的段; 判断模块，其检测包括在所述划分的片段中的色坐标值中具有最大半径的色坐标值; 以及色域边界设置模块，其根据所检测到的颜色坐标值中具有最大半径的颜色坐标值，根据划分的片段来检测具有最大半径的颜色坐标值，该最大半径与每个片段的中心最相邻 包含在分割段中，并且设置了一个色域边界。 基于每个色相的色相值和最大色度值来划分球面坐标系。