公开(公告)号：KR1020040034930A

公开(公告)日：2004-04-29

申请号：KR1020020063585

申请日：2002-10-17

Applicant: 한국전자통신연구원

Inventor： 홍상기 ,  조맹섭 ,  강병호 ,  김진서 ,  김재철 ,  정재영 ,  김대희 ,  허태욱

IPC: G06Q50/10

Abstract: PURPOSE: A system and a method for managing a color of a web page are provided to optimize an image quality of the web page by applying a color gamut mapping method optimized to the web page on a PC monitor, and applying a color appearance model and a visual preference data applied model to color management of a web page component. CONSTITUTION: A page component separating module(10) separates the component displayed on the web page into each category. A parameter generating module(20) generates an optimal parameter fit to the component separated to each category. A color gamut mapping module(30) compresses/extends/converts a color gamut for the component by providing the optimal color gamut mapping method fit to the display device of an Internet user. A time adapted model applying module(40) generates a model reflecting a time adapted state of a person by analyzing the color of the component applying the color gamut mapping, and converts the color of the component by using the generated model. A preference data applying module(50) performs color conversion of an image and a graphic of the component by using the visual preference data after applying the time adapted model.

Abstract translation: 目的：提供一种用于管理网页颜色的系统和方法，以通过应用在PC监视器上优化到网页的色域映射方法来优化网页的图像质量，并且应用颜色外观模型和 将视觉偏好数据应用于网页组件的颜色管理模型。 构成：页面组件分离模块（10）将网页上显示的组件分成每个类别。 参数产生模块（20）产生适合分配给每个类别的组件的最佳参数。 色域映射模块（30）通过提供适合于互联网用户的显示设备的最佳色域映射方法来压缩/扩展/转换该组件的色域。 时间适应模型应用模块（40）通过分析应用色域映射的分量的颜色来生成反映人的时间适应状态的模型，并且通过使用生成的模型来转换分量的颜色。 偏好数据应用模块（50）在应用时间适应模型之后，通过使用视觉偏好数据对图像和图像进行颜色转换。

公开(公告)号：KR1020040034929A

公开(公告)日：2004-04-29

申请号：KR1020020063584

申请日：2002-10-17

Applicant: 한국전자통신연구원

Inventor： 정재영 ,  조맹섭 ,  강병호 ,  김진서 ,  김재철 ,  김대희 ,  허태욱 ,  홍상기

IPC: H04N9/64

Abstract: PURPOSE: A device for correcting a lightness contrast of a video display apparatus according to brightness of ambient illumination is provided to compare information on an observation environment of the video display apparatus inputted by an observer through an RGB(Red/Green/Blue) sensor with a tag value included in a preset extended standard RGB color space, thereby providing high-quality video irrespective of observation environments. CONSTITUTION: A digital video file analyzer(302) receives a digital video file and divides the file into extended standard RGB video and luminescence-applied data information. The extended standard RGB video is divided into extended luminescence and extended chroma through an extended luminescence chroma transformer(304). The extended luminescence data of an extended luminescence unit(308) are inputted to a lightness contrast corrector(310). The lightness contrast corrector(310) performs lightness contrast correction for the extended luminescence data according to result data of a comparison/operation unit(326) to output the corrected data. An RGB sensor(320) senses ambient illumination to output an analog value. An analog-digital converter(322) converts the sensed analog value into a digital value to provide the converted value to the comparison/operation unit(326). The comparison/operation unit(326) compares the digital value with luminescence-applied data information included in a tag of the digital video file outputted by the digital video file analyzer(302) to output result data. The lightness contrast corrector(310) performs lightness contrast correction for the extended luminescence data according to the result data of the comparison/operation unit(326) to output the corrected data. The extended luminescence data passes through an extended luminescence operator(312) and is added to an extended chroma signal in an adder(314). Data in which the corrected extended luminescence signal and the extended chroma signal are added pass through an extended luminescence chroma inverse transformer(316) and are again transformed into signals of the extended standard RGB color space, and values of the converted signals are displayed through a video display apparatus for observers.

Abstract translation: 目的：提供根据环境亮度的亮度来校正视频显示装置的亮度对比度的装置，用于将通过RGB（红/绿/蓝）传感器观察者输入的视频显示装置的观察环境的信息与 包括在预设的扩展标准RGB颜色空间中的标签值，从而提供高质量的视频，而不管观察环境如何。 构成：数字视频文件分析器（302）接收数字视频文件，并将文件分为扩展标准RGB视频和发光应用数据信息。 扩展标准RGB视频通过扩展发光色度变压器（304）分为扩展发光和扩展色度。 扩展发光单元（308）的扩展发光数据被输入到亮度对比度校正器（310）。 亮度对比度校正器（310）根据比较/运算单元（326）的结果数据对扩展发光数据进行亮度对比度校正，以输出校正数据。 RGB传感器（320）感测环境照明以输出模拟值。 模拟数字转换器（322）将感测到的模拟值转换为数字值，以将转换的值提供给比较/运算单元（326）。 比较/操作单元326将数字值与由数字视频文件分析器（302）输出的数字视频文件的标签中包含的发光应用数据信息进行比较，以输出结果数据。 亮度对比度校正器（310）根据比较/运算单元（326）的结果数据对扩展发光数据进行亮度对比度校正，以输出校正数据。 扩展的发光数据通过扩展发光算子（312），并且在加法器（314）中被加到扩展的色度信号。 校正的扩展发光信号和扩展色度信号相加的数据通过扩展的发光色度逆变换器（316），并再次变换为扩展的标准RGB色彩空间的信号，转换的信号的值通过 用于观察者的视频显示装置。

公开(公告)号：KR1020030043450A

公开(公告)日：2003-06-02

申请号：KR1020010074633

申请日：2001-11-28

Applicant: 한국전자통신연구원

Inventor： 허태욱 ,  김재철 ,  정재영 ,  김대희 ,  홍상기 ,  강병호 ,  김진서 ,  조맹섭

IPC: H04N9/68

CPC classification number: H04N9/646 ,  H04N21/23614 ,  H04N21/4348 ,  H04N21/440263

Abstract: PURPOSE: A system and method for transmitting/reproducing an MPEG-2 digital image using ICC profile are provided to allow a display device to perform color correction using color information of an input device. CONSTITUTION: An MPEG-2 digital image transmitting system includes a camera image input unit(110) for photographing an actual image and converting the image into a video signal, an MPEG-2 video compressor(120) for compressing the video signal into an MPEG-2 image, and an ICC profile generator(130) for receiving characteristic information of the camera to generate ICC profile. The system further includes a stream synthesizer(140) for synthesizing the compressed video signal and the ICC profile into one stream signal, and a transmitter(150) for transmitting the stream signal through a network.

Abstract translation: 目的：提供使用ICC简档来发送/再现MPEG-2数字图像的系统和方法，以允许显示设备使用输入设备的颜色信息进行颜色校正。 构成：MPEG-2数字图像传输系统包括用于拍摄实际图像并将图像转换为视频信号的相机图像输入单元（110），用于将视频信号压缩为MPEG的MPEG-2视频压缩器（120） -2图像，以及用于接收相机的特征信息以产生ICC简档的ICC简档生成器（130）。 该系统还包括用于将压缩视频信号和ICC简档合成一个流信号的流合成器（140），以及用于通过网络发送流信号的发射机（150）。

公开(公告)号：KR1020030038058A

公开(公告)日：2003-05-16

申请号：KR1020010069471

申请日：2001-11-08

Applicant: 한국전자통신연구원

Inventor： 강병호 ,  김진서 ,  김재철 ,  허태욱 ,  정재영 ,  김대희 ,  홍상기 ,  조맹섭

IPC: G06T3/00

Abstract: PURPOSE: An apparatus and a method for extending linear color gamut of a color device are provided to linearly extend color gamut when relatively narrow color gamut is converted into a relatively wide color gamut, to improve picture quality. CONSTITUTION: An apparatus for extending linear color gamut of a color device includes an input color coordinate converter(210), a color gamut extension unit(220), a color gamut storage unit(230), and an output color coordinate converter(240). The input color coordinate converter receives red, green and blue color coordinates from a color device(100) with narrow color gamut to convert the color coordinates into color coordinates of luminance, chrominance and hue. The color gamut extension unit extends color attributes of luminance, chrominance and hue according to linear extension equation to convert the color attributes. The color gamut storage unit controls the color attribute information extended by the color gamut extension unit not to come out of a relatively wide color gamut device(300). The output color coordinate converter inverse-transforms the color attribute information into red, green and blue color coordinates to transmit the color coordinates to the wide color gamut device.

Abstract translation: 目的：提供一种用于延长彩色装置的线性色域的装置和方法，用于当相对窄的色域被转换成相对较宽的色域时线性地扩展色域，以提高图像质量。 构成：用于延伸彩色装置的线性色域的装置包括输入颜色坐标转换器（210），色域扩展单元（220），色域存储单元（230）和输出颜色坐标转换器（240） 。 输入颜色坐标转换器从具有窄色域的彩色设备（100）接收红，绿和蓝色坐标，以将色坐标转换为亮度，色度和色调的色坐标。 色域扩展单元根据线性扩展方程扩展亮度，色度和色调的颜色属性，以转换颜色属性。 色域存储单元控制由色域扩展单元扩展的颜色属性信息不会从较宽的色域设备（300）中出来。 输出颜色坐标转换器将颜色属性信息逆变换为红色，绿色和蓝色坐标，以将颜色坐标传输到宽色域设备。