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1. 发明授权

US07733525B2 Gamut mapping method and apparatus 失效
标题翻译：色域映射方法和装置
公开(公告)号：US07733525B2
公开(公告)日：2010-06-08
申请号：US11543874
申请日：2006-10-06
申请人： Min-ki Cho , Byoung-ho Kang , Se-eun Kim , Heui-keun Choh
发明人： Min-ki Cho , Byoung-ho Kang , Se-eun Kim , Heui-keun Choh
IPC分类号： G06F15/00
CPC分类号： H04N1/6058
摘要： A gamut mapping method and apparatus are provided which allow a reproduction device to properly represent colors that are not within a gamut boundary of the reproduction device but within in a gamut boundary of a source device. The gamut mapping method includes (a) setting a cut-off rate for a predetermined color component and defining a cut-off region on a standard color circle; (b) determining a gamut of a reproduction device using color data which is part of basic color data and corresponds to colors that do not belong to the cut-off region; (c) modifying a gamut of a source device according to the determined gamut of the reproduction device; (d) determining a mapping relationship between the modified gamut of the source device and the determined gamut of the reproduction device; and (e) creating a mapping table based on the determined mapping relationship.
摘要翻译：提供了一种色域映射方法和装置，其允许再现设备适当地表示不在再现设备的色域边界内但在源设备的色域边界内的颜色。色域映射方法包括：（a）设置预定颜色分量的截止率并在标准色圆上定义截止区域; （b）使用作为基本颜色数据的一部分并且对应于不属于截止区域的颜色的颜色数据来确定再现设备的色域; （c）根据确定的再现设备的色域修改源设备的色域; （d）确定源设备的修改色域与所确定的再现设备色域之间的映射关系; 和（e）基于确定的映射关系创建映射表。

2. 发明申请

US20070086028A1 Gamut mapping method and apparatus 失效
标题翻译：色域映射方法和装置
公开(公告)号：US20070086028A1
公开(公告)日：2007-04-19
申请号：US11543874
申请日：2006-10-06
申请人： Min-ki Cho , Byoung-ho Kang , Se-eun Kim , Heui-keun Choh
发明人： Min-ki Cho , Byoung-ho Kang , Se-eun Kim , Heui-keun Choh
IPC分类号： G06F15/00
CPC分类号： H04N1/6058
摘要： A gamut mapping method and apparatus are provided which allow a reproduction device to properly represent colors that are not within a gamut boundary of the reproduction device but within in a gamut boundary of a source device. The gamut mapping method includes (a) setting a cut-off rate for a predetermined color component and defining a cut-off region on a standard color circle; (b) determining a gamut of a reproduction device using color data which is part of basic color data and corresponds to colors that do not belong to the cut-off region; (c) modifying a gamut of a source device according to the determined gamut of the reproduction device; (d) determining a mapping relationship between the modified gamut of the source device and the determined gamut of the reproduction device; and (e) creating a mapping table based on the determined mapping relationship.
摘要翻译：提供了一种色域映射方法和装置，其允许再现设备适当地表示不在再现设备的色域边界内但在源设备的色域边界内的颜色。色域映射方法包括：（a）设置预定颜色分量的截止率并在标准色圆上定义截止区域; （b）使用作为基本颜色数据的一部分并且对应于不属于截止区域的颜色的颜色数据来确定再现设备的色域; （c）根据确定的再现设备的色域修改源设备的色域; （d）确定源设备的修改色域与所确定的再现设备色域之间的映射关系; 和（e）基于确定的映射关系创建映射表。

3. 发明授权

US07667873B2 Apparatus and method for image-adaptive color reproduction using pixel frequency information in plural color regions and compression-mapped image information 失效
标题翻译：使用多个颜色区域中的像素频率信息进行图像自适应色彩再现的装置和方法以及压缩映射图像信息
公开(公告)号：US07667873B2
公开(公告)日：2010-02-23
申请号：US11714784
申请日：2007-03-07
申请人： Byoung-ho Kang , Heui-keun Choh , Min-ki Cho , Se-eun Kim , Ronnier Luo
发明人： Byoung-ho Kang , Heui-keun Choh , Min-ki Cho , Se-eun Kim , Ronnier Luo
IPC分类号： H04N1/56 , H04N1/60 , G06T5/00
CPC分类号： H04N1/6058
摘要： An apparatus and method for image-adaptive color reproduction is provided. The apparatus includes an information-extraction unit, an image-compression unit and an image-information-reproduction unit. The information-extraction unit inputs image information of a first color space model, converts the input image information into image information of a second color space model, and extracts pixel frequency information of pixels belonging to a plurality of color regions by using the image information of the second color space model. The image compression unit inputs the image information of the first color space model, converts the input image information into the image information of the second color space model, and calculates compressed image information by compression-mapping the image information of the second color space model. The image information reproduction unit outputs final image information by using the pixel frequency information and the compressed image information.
摘要翻译：提供了一种用于图像自适应色彩再现的装置和方法。该装置包括信息提取单元，图像压缩单元和图像信息再现单元。信息提取单元输入第一颜色空间模型的图像信息，将输入图像信息转换为第二颜色空间模型的图像信息，并且使用图像信息提取属于多个颜色区域的像素的像素频率信息第二个颜色空间模型。图像压缩单元输入第一颜色空间模型的图像信息，将输入图像信息转换为第二颜色空间模型的图像信息，并且通过压缩映射第二颜色空间模型的图像信息来计算压缩图像信息。图像信息再现单元通过使用像素频率信息和压缩图像信息输出最终图像信息。

4. 发明申请

US20070211272A1 Apparatus and method for image-adaptive color reproduction 失效
标题翻译：用于图像自适应色彩再现的装置和方法
公开(公告)号：US20070211272A1
公开(公告)日：2007-09-13
申请号：US11714784
申请日：2007-03-07
申请人： Byoung-ho Kang , Heui-keun Choh , Min-ki Cho , Se-eun Kim , Ronnier Luo
发明人： Byoung-ho Kang , Heui-keun Choh , Min-ki Cho , Se-eun Kim , Ronnier Luo
IPC分类号： G03F3/08
CPC分类号： H04N1/6058
摘要： An apparatus and method for image-adaptive color reproduction is provided. The apparatus includes an information-extraction unit, an image-compression unit and an image-information-reproduction unit. The information-extraction unit inputs image information of a first color space model, converts the input image information into image information of a second color space model, and extracts pixel frequency information of pixels belonging to a plurality of color regions by using the image information of the second color space model. The image compression unit inputs the image information of the first color space model, converts the input image information into the image information of the second color space model, and calculates compressed image information by compression-mapping the image information of the second color space model. The image information reproduction unit outputs final image information by using the pixel frequency information and the compressed image information.
摘要翻译：提供了一种用于图像自适应色彩再现的装置和方法。该装置包括信息提取单元，图像压缩单元和图像信息再现单元。信息提取单元输入第一颜色空间模型的图像信息，将输入图像信息转换为第二颜色空间模型的图像信息，并且使用图像信息提取属于多个颜色区域的像素的像素频率信息第二个颜色空间模型。图像压缩单元输入第一颜色空间模型的图像信息，将输入图像信息转换为第二颜色空间模型的图像信息，并且通过压缩映射第二颜色空间模型的图像信息来计算压缩图像信息。图像信息再现单元通过使用像素频率信息和压缩图像信息输出最终图像信息。

5. 发明申请

US20070195382A1 Apparatus for gamut mapping and method of generating gamut boundary using the same 审中-公开
标题翻译：用于色域映射的装置和使用其进行色域边界的方法
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。

6. 发明申请

US20060170940A1 Gamut mapping apparatus and method thereof 有权
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.

7. 发明授权

US07583411B2 Gamut mapping apparatus and method thereof 有权
标题翻译：色域映射设备及其方法
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。

8. 发明申请

US20080174798A1 Color-management apparatus and method 审中-公开
标题翻译：色彩管理装置及方法
公开(公告)号：US20080174798A1
公开(公告)日：2008-07-24
申请号：US11905964
申请日：2007-10-05
申请人： Min-ki Cho , Ronnier Luo , Heui-keun Choh , Byoung-ho Kang
发明人： Min-ki Cho , Ronnier Luo , Heui-keun Choh , Byoung-ho Kang
IPC分类号： G06F15/00
CPC分类号： H04N1/6058
摘要： A color-management apparatus and method which can improve color reproducibility during color-gamut mapping of devices having different color gamuts are provided. The apparatus includes a transformation unit transforming a first color space of an original image supplied from a source device into a second color space, a computing unit computing a plurality of second parameters based on at least one among a plurality of first parameter defining the second color space, and a color-gamut mapping unit performing color-gamut mapping between the source device and a reproduction device reproducing an output image from the original image using the plurality of second parameters.
摘要翻译：提供了一种能够提高具有不同色域的设备的色域映射期间的颜色再现性的颜色管理装置和方法。该装置包括将从源装置提供的原始图像的第一颜色空间变换为第二颜色空间的变换单元，计算单元基于定义第二颜色的多个第一参数中的至少一个来计算多个第二参数空间和色域映射单元，其在源设备和再现设备之间执行色域映射，使用多个第二参数从原始图像再现输出图像。

9. 发明授权

US08705152B2 System, medium, and method calibrating gray data 失效
标题翻译：系统，中等和方法校准灰色数据
公开(公告)号：US08705152B2
公开(公告)日：2014-04-22
申请号：US11892426
申请日：2007-08-22
申请人： Min-ki Cho , Heui-keun Choh , YouSun Bang , Se-eun Kim , Yun-tae Kim
发明人： Min-ki Cho , Heui-keun Choh , YouSun Bang , Se-eun Kim , Yun-tae Kim
IPC分类号： H04N1/46 , G06K1/00
CPC分类号： H04N1/62 , H04N1/6027
摘要： A system, medium, and method calibrating gray data. The system calibrating gray data includes a transformation unit to transform red, green, and blue (RGB) data of a source device into transformed color data of a different color space using a color appearance model, and a calibration unit to map a chroma value of gray data, corresponding to the transformed color data, in the different color space to a predetermined value to generate calibrated color space data.
摘要翻译：一种校准灰度数据的系统，介质和方法。系统校准灰度数据包括变换单元，其使用颜色外观模型将源设备的红，绿和蓝（RGB）数据变换为不同颜色空间的变换颜色数据，以及校准单元，用于将色度值对应于变换的颜色数据的灰度数据在不同的颜色空间中达到预定值，以产生经校准的色彩空间数据。

10. 发明申请

US20080080767A1 Method and apparatus for performing gamut mapping between heterogeneous devices 审中-公开
标题翻译：用于在异构设备之间执行色域映射的方法和装置
公开(公告)号：US20080080767A1
公开(公告)日：2008-04-03
申请号：US11902934
申请日：2007-09-26
申请人： Min-ki Cho , Heui-keun Choh , YouSun Bang , Se-eun Kim , Yun-tae Kim
发明人： Min-ki Cho , Heui-keun Choh , YouSun Bang , Se-eun Kim , Yun-tae Kim
IPC分类号： H04N1/60 , G06T11/00
CPC分类号： H04N1/6027 , H04N1/603 , H04N1/6058
摘要： Provided is a method and apparatus to perform gamut mapping between heterogeneous devices, more particularly, a method and apparatus to map a color of a device to an identical or visually and sensually preferable color of another device having a different color gamut. The method includes adjusting lightness of a color of a source device by scaling to match a lightness range of the source device with a lightness range of a destination device; modifying the adjusted lightness of the color of the source device by adjusting a color gamut of the source device to a color gamut of the destination device; and to map the modified color of the source device to a color in the color gamut of the destination device.
摘要翻译：提供了一种用于在异构设备之间执行色域映射的方法和装置，更具体地，涉及将设备的颜色映射到具有不同色域的另一设备的相同或视觉和感官优选颜色的方法和装置。该方法包括通过缩放来调整源设备的颜色的亮度，以使源设备的亮度范围与目的地设备的亮度范围相匹配; 通过将源设备的色域调整到目的地设备的色域来修改源设备的颜色的调节亮度; 并将源设备的修改颜色映射到目的地设备的色域中的颜色。

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