公开(公告)号：US20070296871A1

公开(公告)日：2007-12-27

申请号：US11806838

申请日：2007-06-04

申请人： Young-jin Yoo ,  Seong-deok Lee

发明人： Young-jin Yoo ,  Seong-deok Lee

IPC分类号： H04N5/14

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10024 ,  G06T2207/20012 ,  H04N5/217

摘要： A noise reduction method, medium, and system. The noise reduction method includes calculating a noise level of an input image and removing noise from a central pixel within a window of a predetermined size in the input image using a weight determined based on a difference between signal intensities of the central pixel and a plurality of adjacent pixels within the window and the calculated noise level.

摘要翻译： 降噪方法，介质和系统。 噪声降低方法包括：使用基于中心像素的信号强度和多个信号强度之间的差异确定的权重来计算输入图像的噪声电平并从输入图像中的预定大小的窗口内的中心像素去除噪声 窗口内的相邻像素和计算出的噪声水平。

公开(公告)号：US07268792B2

公开(公告)日：2007-09-11

申请号：US10429713

申请日：2003-05-06

申请人： Seong-deok Lee ,  Chang-yeong Kim

发明人： Seong-deok Lee ,  Chang-yeong Kim

IPC分类号： G09G5/02

CPC分类号： H04N9/67

摘要： A method and apparatus for rendering an image signal by adding another one color different from an inputted color, to an image signal composed of a predetermined number (for example, RGB) of components, is provided. The method for rendering image signals which represent a predetermined number of colors in an apparatus for rendering an image signal of which pixels have three sub-pixels, comprises (a) receiving a predetermined number of color signals and converting the predetermined number of color signals into four-color signals to be represented in the sub-pixels, (b) selecting two-color signals to be outputted alternatively in every other pixels out of the four-color signals and selecting only one-color signal for each position of a pixel area from the two-color signal, (c) recalculating a level value of the selected one-color signal to be represented in the sub-pixels, and (d) controlling image signals to be represented in the sub-pixels according to the level value of the one-color signal calculated in (c).

摘要翻译： 提供了一种用于通过将不同于输入的颜色的另一种颜色再现到由预定数量（例如，RGB）组成的图像信号来渲染图像信号的方法和装置。 在用于渲染像素具有三个子像素的图像信号的装置中渲染表示预定数量的颜色的图像信号的方法包括（a）接收预定数量的颜色信号并将预定数量的颜色信号转换成 要在子像素中表示的四色信号，（b）选择要在四色信号中的每隔一个像素交替输出的双色信号，并且仅对像素区域的每个位置选择单色信号 （c）重新计算要在子像素中表示的所选择的单色信号的电平值，以及（d）根据电平值控制在子像素中表示的图像信号 （c）中计算出的单色信号。

公开(公告)号：US20070104387A1

公开(公告)日：2007-05-10

申请号：US11584666

申请日：2006-10-23

申请人： Young-ran Han ,  Seong-deok Lee ,  Du-sik Park

发明人： Young-ran Han ,  Seong-deok Lee ,  Du-sik Park

IPC分类号： G06K9/38

CPC分类号： H04N5/57 ,  G06T5/009 ,  G06T5/40 ,  H04N5/20 ,  H04N21/4318

摘要： A method of enhancing contrast includes obtaining a first luminance histogram of an input image; generating a second luminance histogram through pixel redistribution for the first luminance histogram; computing a conversion function based on both a first cumulative density function based on the first luminance histogram and a second cumulative density function based on the second luminance histogram; and changing the luminance distribution of the input image based on the conversion function.

摘要翻译： 增强对比度的方法包括获得输入图像的第一亮度直方图; 通过第一亮度直方图的像素重新分布产生第二亮度直方图; 基于第一亮度直方图的第一累积密度函数和基于第二亮度直方图的第二累积密度函数来计算转换函数; 以及基于所述转换功能来改变所述输入图像的亮度分布。

公开(公告)号：US20060181529A1

公开(公告)日：2006-08-17

申请号：US11398668

申请日：2006-04-06

申请人： Sang-kyun Kim ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee

发明人： Sang-kyun Kim ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee

IPC分类号： G06T15/50

CPC分类号： H04N1/60 ,  G06F17/30247 ,  G06F17/3025 ,  G06F17/30274

摘要： An image browsing apparatus capable of calculating color temperature of an image and browsing the image based on the color temperature, and a method of browsing an image are provided. The image browsing apparatus includes a data storage unit for storing a plurality of image data; a color temperature calculator for calculating the color temperature of each image and storing the calculated color temperature in the data storage unit; a command input unit for inputting an image browsing mode; and a color temperature browser for classifying images corresponding to the browsing mode using the color temperature as an image search condition and then, browsing the classified images. The method of browsing images includes determining the color temperature of an input image when a browsing mode is input; and browsing images when the color temperature falls within the color temperature range of the browsing mode.

公开(公告)号：US07030885B2

公开(公告)日：2006-04-18

申请号：US09983034

申请日：2001-10-22

申请人： Sang-kyun Kim ,  Seong-deok Lee ,  Chang-yeong Kim ,  Pavel A. Chochia ,  Dmitry V. Sushko ,  Boris M. Miller

发明人： Sang-kyun Kim ,  Seong-deok Lee ,  Chang-yeong Kim ,  Pavel A. Chochia ,  Dmitry V. Sushko ,  Boris M. Miller

IPC分类号： G09G5/02 ,  G09G5/00

CPC分类号： G06K9/342 ,  G06T7/11 ,  G06T7/187 ,  G06T7/90 ,  G06T2207/10016 ,  G06T2207/20016

摘要： A method and apparatus for measuring a color-texture distance and a method and apparatus for sectioning an image into a plurality of regions using the measured color-texture distance are provided. The method of measuring a color-texture distance includes the steps of: assigning different degrees of importance to a brightness difference, a saturation difference, and a hue difference between two points in a color feature space constituted of color feature values of pixels in an image, and adding the brightness difference, the saturation difference, and the hue difference in proportion to the assigned degrees of importance to calculate a color distance between the two points; obtaining a texture distance between the two points using a difference between texture feature values of the two points and weighting coefficients applied to multi scales of a texture, in a texture feature space constituted of texture feature values for the pixels; and multiplying a color weight value and a texture weight value by the color distance and the texture distance, respectively, adding the multiplication results to each other, and obtaining the color-texture distance between the two points. The degrees of importance are determined on the basis that a hue is more important than a brightness or a saturation, a color becomes black as the brightness approaches an absolute value, and the hue has an arbitrary value as the saturation approaches the absolute value.

公开(公告)号：US20060061588A1

公开(公告)日：2006-03-23

申请号：US11229642

申请日：2005-09-20

申请人： Hyun-wook Ok ,  Seong-deok Lee ,  Chang-yeong Kim

发明人： Hyun-wook Ok ,  Seong-deok Lee ,  Chang-yeong Kim

IPC分类号： G09G5/02

CPC分类号： G09G5/02 ,  H04N9/643

摘要： An apparatus for converting input image signals into image signals that can be displayed in an image display device. The image display device includes a color space converter converting color components of the input image signals and color components that can be displayed in the image display device into color space, a hue control variable calculator comparing a converted color gamut with each other to calculate a hue control variable, and a hue controller controlling hues of the input image signals using the hue control variable.

公开(公告)号：US06724934B1

公开(公告)日：2004-04-20

申请号：US09562432

申请日：2000-05-01

申请人： Seong-deok Lee ,  Chang-young Kim ,  Du-sik Park ,  Yang-seock Seo ,  Jeong-yeop Kim

发明人： Seong-deok Lee ,  Chang-young Kim ,  Du-sik Park ,  Yang-seock Seo ,  Jeong-yeop Kim

IPC分类号： G06K900

CPC分类号： G09G5/02 ,  H04N9/646 ,  H04N9/67

摘要： A method and apparatus for generating a white signal component and for controlling the brightness of an image are provided. In the above method and apparatus, the brightness increases of Red, Green and Blue, the saturations of which are not decreased from an input image are calculated using a vector, and the minimum value of such increases is utilized as the input value for the white component. Further, by adding brightness control components of RGB color to the input RGB signals, brightness increases in the direction of the original colors instead of the achromatic one are possible, which is the way the white component is added so as to increase the luminance of color display devices representing a color using a color filter such a flat panel display. Accordingly, a color saturation of the image is not decreased even with addition of the achromatic color a component. In other words, in converting a signal from the three colors such as RGB into the four colors inclusive of white component, the present invention is capable of increasing the brightness without reduction of saturation as well as extracting the white component in an easy and efficient way, which enhances the performance of image processing apparatuses such as color display devices and the like.

摘要翻译： 提供了一种用于产生白色信号分量并用于控制图像的亮度的方法和装置。 在上述方法和装置中，红色，绿色和蓝色的亮度增加使用向量计算其输入图像的饱和度不降低，并且这种增加的最小值被用作白色的输入值 零件。 此外，通过向输入的RGB信号添加RGB颜色的亮度控制分量，可以在原色方向上增加亮度而不是消色差，这是添加白色分量以增加颜色亮度的方式 使用诸如平板显示器的滤色器表示颜色的显示设备。 因此，即使添加无色成分，也不会降低图像的色彩饱和度。 换句话说，在将诸如RGB的三种颜色的信号转换为包括白色分量的四种颜色的情况下，本发明能够在不降低饱和度的同时提高亮度以及以简单有效的方式提取白色分量 ，这增强了诸如彩色显示装置等的图像处理装置的性能。

公开(公告)号：US06606408B1

公开(公告)日：2003-08-12

申请号：US09562029

申请日：2000-05-01

申请人： Dong-joong Kang ,  Seong-deok Lee ,  Ji-yeun Kim ,  Chang-young Kim ,  Yang-seock Seo

发明人： Dong-joong Kang ,  Seong-deok Lee ,  Ji-yeun Kim ,  Chang-young Kim ,  Yang-seock Seo

IPC分类号： G06K900

CPC分类号： G06T7/162 ,  G06T7/11 ,  G06T2207/10016

摘要： An image segmenting apparatus and method is provided. The image segmenting apparatus includes an initial image segmenting unit, a region structurizing unit and a redundant region combiner. The initial image segmenting unit converts color signals of an input image into a color space which is based on predetermined signals, and segments the input image into a plurality of regions according to positions of color pixels of the input image in the color space. The region structurizing unit classifies the plurality of regions into layers according to horizontal, adjacent relation and hierarchical, inclusive relation between the regions, and groups adjacent regions into region groups in each layer, so as to derive a hierarchical, inclusive relation between the region groups. The redundant region combiner determines the order in which adjacent regions are combined according to the horizontal, adjacent relation between regions and the hierarchical, inclusive relation between region groups. The redundant region combiner also determines whether to combine adjacent regions according to the determined combination order, and combines adjacent regions if the adjacent regions are determined to be substantially the same. Even if regions appears to be adjacent each other in a region adjacent graph (RAG), a structural inclusive relation between regions can be derived by excluding the combination of the regions or rearranging their combination order according to a hierarchical structure. Subsequently, the mutual relation between two regions can be inferred from the inclusive relation even if the color signals of the two regions, for example, a region in a highlighted area and a region in its surrounding area, are not similar to each other.

摘要翻译： 提供了一种图像分割装置和方法。 图像分割装置包括初始图像分割单元，区域结构化单元和冗余区域组合器。 初始图像分割单元将输入图像的颜色信号转换为基于预定信号的颜色空间，并根据输入图像在颜色空间中的颜色像素的位置将输入图像分割成多个区域。 区域结构化单元根据水平，相邻关系和区域之间的层次关系以及相邻区域之间的层次关系将多个区域分类为各层中的区域组，从而导出区域组之间的层次关系 。 冗余区域组合器根据区域之间的水平，相邻关系和区域组之间的层次关系确定相邻区域的组合顺序。 冗余区域组合器还根据确定的组合顺序确定是否组合相邻区域，并且如果相邻区域被确定为基本相同，则组合相邻区域。 即使在区域相邻图（RAG）中看起来彼此相邻，也可以通过排除区域的组合或根据层次结构重排其组合顺序来导出区域之间的结构性包含关系。 随后，即使两个区域的颜色信号，例如突出显示区域中的区域和其周围区域中的区域彼此不相似，也可以从包含关系推断两个区域之间的相互关系。

公开(公告)号：US08849023B2

公开(公告)日：2014-09-30

申请号：US11907126

申请日：2007-10-09

申请人： Joo-young Kang ,  Hyun-wook Ok ,  Seong-deok Lee ,  Hyun-hwa Oh

发明人： Joo-young Kang ,  Hyun-wook Ok ,  Seong-deok Lee ,  Hyun-hwa Oh

IPC分类号： G06K9/00 ,  G06K9/40 ,  G06K9/46 ,  G06K9/66 ,  H04N9/64 ,  G04F3/08 ,  H04N9/04

CPC分类号： G06T5/001 ,  G06T5/006 ,  G06T7/13 ,  G06T2207/10024 ,  G06T2207/20192 ,  H04N9/045 ,  H04N9/646

摘要： The present invention relates to an apparatus and method of correcting a chromatic aberration of an image, and in particular, to an apparatus and method of correcting a chromatic aberration of an image that can correct a general chromatic aberration of an edge or an extreme chromatic aberration, such as a purple fringe, in an image.An apparatus for correcting a chromatic aberration of an image according to an embodiment of the present invention includes an edge detection unit detecting an edge of an input image, a level calculation unit calculating a chromatic aberration level of the detected edge, and a correction unit correcting the edge using different weighted values according to the calculated chromatic aberration level.

摘要翻译： 本发明涉及校正图像的色像差的装置和方法，特别地涉及一种校正可校正一般色差或极差色像差的图像色差的装置和方法 ，例如紫色边缘，在图像中。 根据本发明的实施例的用于校正图像的色差的装置包括检测输入图像的边缘的边缘检测单元，计算检测到的边缘的色差等级的电平计算单元和校正单元的校正单元 边缘根据计算的色差级别使用不同的加权值。

公开(公告)号：US08705886B2

公开(公告)日：2014-04-22

申请号：US11898052

申请日：2007-09-07

申请人： Dae-su Chung ,  Byoung-ho Kang ,  Seong-deok Lee

发明人： Dae-su Chung ,  Byoung-ho Kang ,  Seong-deok Lee

IPC分类号： G06K9/40

CPC分类号： G06T5/008 ,  G06T2207/20012

摘要： A system, medium, and method compensating brightness of an image, by compensating the brightness of a main object included in the image. The system includes a brightness distribution calculation unit dividing the obtained image into a plurality of divided regions and calculating the brightness distribution of each divided region, and a compensation unit determining a main region including a main object in the obtained image according to the calculated brightness distribution and compensating the obtained image according to the determination result.

摘要翻译： 通过补偿包括在图像中的主要对象的亮度来补偿图像的亮度的系统，介质和方法。 该系统包括：亮度分布计算单元，将得到的图像分割为多个分割区域，并计算各分割区域的亮度分布;以及补偿单元，根据计算出的亮度分布确定所获得图像中包含主要对象的主区域 并根据确定结果补偿所获得的图像。