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。

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。

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。

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。

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。

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。

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：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：US20070139439A1

公开(公告)日：2007-06-21

申请号：US11595938

申请日：2006-11-13

申请人： Se-eun Kim ,  Byoung-ho Kang ,  Heui-keun Choh

发明人： Se-eun Kim ,  Byoung-ho Kang ,  Heui-keun Choh

IPC分类号： G09G5/02

CPC分类号： H04N1/62 ,  G06T11/001 ,  H04N1/628

摘要： An apparatus and method are provided for converting a preference color, in which the color space of a preference color selected by a user is divided into a plurality of sub-regions according to color distribution characteristics, and the colors of the respective regions of an input image corresponding to the user's preference color are converted into colors of proper sub-regions among the plurality of sub-regions. The apparatus for converting a preference color includes an image extraction unit which extracts at least one image region that includes a preference color from an input image, an image analysis unit which analyzes color distribution characteristics of the image region, a color-space extraction unit which extracts a divided space corresponding to the color distribution characteristics from divided spaces included in a color space of the preference color, and a color conversion unit which converts a color of the image region by using a color conversion model corresponding to the extracted divided space.

摘要翻译： 提供了一种用于转换偏好颜色的装置和方法，其中由用户选择的偏好颜色的颜色空间根据颜色分布特性被划分为多个子区域，并且输入的各个区域的颜色 对应于用户偏好颜色的图像被转换成多个子区域中适当子区域的颜色。 用于转换偏好颜色的设备包括图像提取单元，其从输入图像中提取包含偏好颜色的至少一个图像区域，分析图像区域的颜色分布特性的图像分析单元，色空间提取单元， 从偏好颜色的颜色空间中包含的分割空间中提取与颜色分布特性相对应的分割空间;以及颜色转换单元，其通过使用与所提取的分割空间对应的颜色转换模型来转换图像区域的颜色。

公开(公告)号：US07835575B2

公开(公告)日：2010-11-16

申请号：US11595938

申请日：2006-11-13

申请人： Se-eun Kim ,  Byoung-ho Kang ,  Heui-keun Choh

发明人： Se-eun Kim ,  Byoung-ho Kang ,  Heui-keun Choh

IPC分类号： G06K9/00 ,  G09G5/02 ,  G03F3/08

CPC分类号： H04N1/62 ,  G06T11/001 ,  H04N1/628

摘要： An apparatus and method are provided for converting a preference color, in which the color space of a preference color selected by a user is divided into a plurality of sub-regions according to color distribution characteristics, and the colors of the respective regions of an input image corresponding to the user's preference color are converted into colors of proper sub-regions among the plurality of sub-regions. The apparatus for converting a preference color includes an image extraction unit which extracts at least one image region that includes a preference color from an input image, an image analysis unit which analyzes color distribution characteristics of the image region, a color-space extraction unit which extracts a divided space corresponding to the color distribution characteristics from divided spaces included in a color space of the preference color, and a color conversion unit which converts a color of the image region by using a color conversion model corresponding to the extracted divided space.

摘要翻译： 提供了一种用于转换偏好颜色的装置和方法，其中由用户选择的偏好颜色的颜色空间根据颜色分布特性被划分为多个子区域，并且输入的各个区域的颜色 对应于用户偏好颜色的图像被转换成多个子区域中适当子区域的颜色。 用于转换偏好颜色的装置包括图像提取单元，其从输入图像提取包含偏好颜色的至少一个图像区域，分析图像区域的颜色分布特性的图像分析单元，色空间提取单元， 从偏好颜色的颜色空间中包含的分割空间中提取与颜色分布特性相对应的分割空间;以及颜色转换单元，其通过使用与所提取的分割空间对应的颜色转换模型来转换图像区域的颜色。