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    • 1. 发明授权
    • Apparatus and method for image-adaptive color reproduction using pixel frequency information in plural color regions and compression-mapped image information
    • 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
    • US07667873B2
    • 2010-02-23
    • US11714784
    • 2007-03-07
    • Byoung-ho KangHeui-keun ChohMin-ki ChoSe-eun KimRonnier Luo
    • Byoung-ho KangHeui-keun ChohMin-ki ChoSe-eun KimRonnier Luo
    • H04N1/56H04N1/60G06T5/00
    • H04N1/6058
    • 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.
    • 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。
    • 2. 发明申请
    • Apparatus and method for image-adaptive color reproduction
    • 用于图像自适应色彩再现的装置和方法
    • US20070211272A1
    • 2007-09-13
    • US11714784
    • 2007-03-07
    • Byoung-ho KangHeui-keun ChohMin-ki ChoSe-eun KimRonnier Luo
    • Byoung-ho KangHeui-keun ChohMin-ki ChoSe-eun KimRonnier Luo
    • G03F3/08
    • H04N1/6058
    • 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.
    • 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。
    • 3. 发明申请
    • Apparatus for gamut mapping and method of generating gamut boundary using the same
    • 用于色域映射的装置和使用其进行色域边界的方法
    • US20070195382A1
    • 2007-08-23
    • US11604803
    • 2006-11-28
    • Min-ki ChoByoung-ho KangHeui-keun ChohRonnier Luo
    • Min-ki ChoByoung-ho KangHeui-keun ChohRonnier Luo
    • G03F3/08
    • H04N1/6058
    • 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.
    • 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。
    • 5. 发明申请
    • Method, medium, and system classifying images based on image properties
    • 基于图像属性的方法,中等和系统分类图像
    • US20080181493A1
    • 2008-07-31
    • US11984685
    • 2007-11-20
    • Min-ki ChoRonnier LuoHeul-keun ChohByouno-ho Kang
    • Min-ki ChoRonnier LuoHeul-keun ChohByouno-ho Kang
    • G06K9/00
    • G06K9/00684G06F16/5838
    • 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.
    • 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。