公开(公告)号：US08072647B2

公开(公告)日：2011-12-06

申请号：US12222731

申请日：2008-08-14

申请人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G03F3/08 ,  G06F15/00 ,  H04N1/46 ,  G06K9/00

CPC分类号： H04N1/6058

摘要： A color conversion apparatus receives first image data including first red-green-blue color data in which the possible values of the red, green, and blue components extend beyond the range from 0% to 100%. The first color data are analyzed into first hue region data, the magnitudes of which are adjusted according to the brightness and/or saturation of the first color data to obtain second and third hue region data. The gamut of colors of the first image data is detected, and matrix coefficients are generated according to the detected gamut. The matrix coefficients are used to perform a matrix operation on the second and third hue region data to obtain second color data, thereby converting the first image data to second image data with conversion characteristics appropriate for the gamut of colors of the first image data.

摘要翻译： 颜色转换装置接收包括第一红 - 绿 - 蓝颜色数据的第一图像数据，其中红，绿和蓝分量的可能值延伸超出0％至100％的范围。 将第一颜色数据分析为第一色相区域数据，其数量根据第一颜色数据的亮度和/或饱和度进行调整，以获得第二和第三色调区域数据。 检测第一图像数据的色域，并根据检测到的色域生成矩阵系数。 矩阵系数用于对第二和第三色调区域数据执行矩阵运算以获得第二颜色数据，从而将第一图像数据转换成具有适合于第一图像数据的色域的转换特性的第二图像数据。

公开(公告)号：US08036459B2

公开(公告)日：2011-10-11

申请号：US12249734

申请日：2008-10-10

申请人： Hideki Yoshii ,  Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Hideki Yoshii ,  Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G06K9/00

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T2207/10024

摘要： An image processing apparatus enhances contrast without producing color balance distortion or color collapse by generating a gradation-scale correction table from a distribution of a characteristic quantity of an input image signal, using the gradation-scale correction table to derive a gradation correction parameter for each pixel from a maximum component value of the pixel, and multiplying all components of the pixel by the gradation correction parameter.

摘要翻译： 图像处理装置通过使用灰度级校正表从每个输入图像信号的特征量的分布生成灰度级校正表来增强对比度而不产生色平衡失真或颜色塌陷，以导出每个 像素，并将像素的所有分量乘以灰度校正参数。

公开(公告)号：US20090080769A1

公开(公告)日：2009-03-26

申请号：US12232897

申请日：2008-09-25

申请人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G06K9/00

CPC分类号： H04N1/6058

摘要： An image data processing apparatus receives trichromatic image data with values expressing red, green, and blue and generates information indicating the gamut of colors of the image data. The gamut information is obtained from maximum and minimum values, or values equivalent to the maximum and minimum values, pertaining to different color components during a prescribed time interval, and indicates the actual gamut of colors that appear during the prescribed time interval. The gamut information is appended to the image data, or output separately from the image data, for use in subsequent image processing.

摘要翻译： 图像数据处理装置接收具有表示红色，绿色和蓝色的值的三色图像数据，并产生指示图像数据的颜色色域的信息。 从指定时间间隔内与不同颜色分量相关的最大值和最小值或相当于最大值和最小值的值获得色域信息，并指示在规定时间间隔期间出现的实际颜色色域。 色域信息附加到图像数据，或者与图像数据分离地输出，用于后续图像处理。

公开(公告)号：US20070132680A1

公开(公告)日：2007-06-14

申请号：US11636473

申请日：2006-12-11

申请人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G09G3/34

CPC分类号： G09G3/3406 ,  G09G3/2003 ,  G09G3/34 ,  G09G2310/0235 ,  G09G2320/0633 ,  G09G2360/16

摘要： A field-sequential display apparatus having a light source that emits light of different colors in different subframes of an image controls the spectral distribution of the light emitted in each subframe according to characteristics of the input image data, or to ambient conditions or other user-specified conditions. The input image data are processed so that image colors are displayed correctly despite changes in the spectral distribution of the light-source colors. This scheme enables the gamut of reproducible colors to be altered from frame to frame to provide an appropriate balance between brightness and color saturation in each frame, and to compensate for ambient lighting conditions.

摘要翻译： 具有在图像的不同子帧中发出不同颜色的光的光源的场顺序显示装置根据输入图像数据的特性，或者环境条件或其他用户设备控制每个子帧中发射的光的光谱分布， 指定条件。 处理输入图像数据，使得即使在光源颜色的光谱分布的变化中也正确地显示图像颜色。 该方案使得可再现颜色的色域可以从帧到帧改变，以在每帧中的亮度和颜色饱和度之间提供适当的平衡，并且补偿环境照明条件。

公开(公告)号：US07136190B2

公开(公告)日：2006-11-14

申请号：US10168628

申请日：2001-04-13

申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Junichi Nose

发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Junichi Nose

IPC分类号： B41J1/00 ,  G06F15/00 ,  G03F3/08 ,  G06K9/00

CPC分类号： H04N1/6075 ,  H04N1/6008

摘要： A conventional color conversion apparatus was associated with a problem of generation of an achromatic component and reduction in the luminance.A color conversion apparatus according to the present invention generates new color data corresponding to color red of red, green and blue by means of matrix calculation using a first calculation term which is effective for just one of the hues of red, yellow, blue, green, cyan, magenta and yellow, and a second calculation term which is calculated from the first calculation term and which is effective for a predetermined inter-hue region included in at least one of inter-hue zones of red-yellow, yellow-green, green-cyan, cyan-magenta, and magenta-red, so that color conversion can be achieved without generation of an unnecessary achromatic component or reduction in the luminance.

公开(公告)号：US07119927B2

公开(公告)日：2006-10-10

申请号：US11109685

申请日：2005-04-20

申请人： Hiroaki Sugiura ,  Shuichi Kagawa

发明人： Hiroaki Sugiura ,  Shuichi Kagawa

IPC分类号： G06F15/00 ,  G03F3/08

CPC分类号： H04N1/6016 ,  G06T11/001 ,  H04N1/46 ,  H04N1/6075

摘要： Responsive to image data of three colors, six hue data are obtained, and then first comparison-result data and second-order terms each relating to one of the six hues, and second comparison-result data each relating to one of the six inter-hue areas are obtained. Matrix calculation is performed on the first comparison-result data, the second comparison-result data, and the second-order terms, using coefficients. By varying the coefficients, adjustment can be made to only the target hue or inter-hue area, without affecting other hues and inter-hue areas. Thus, the six hues and six inter-hue areas can be varied independently, and the large-capacity memory is not required. In addition, gray scale conversion is applied to the result of the matrix calculation, so as to compensate for the non-linearity of the output device.

公开(公告)号：US20050047652A1

公开(公告)日：2005-03-03

申请号：US10963662

申请日：2004-10-14

申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Mariko Takahashi ,  Narihiro Matoba

发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Mariko Takahashi ,  Narihiro Matoba

IPC分类号： H04N9/64 ,  G06T1/00 ,  G06T5/00 ,  G06T11/00 ,  G09G5/02 ,  H04N1/46 ,  H04N1/60 ,  H04N9/73 ,  H04N9/74 ,  G06K9/00

CPC分类号： H04N1/6011 ,  G06T11/001 ,  G09G5/02 ,  G09G2320/0606 ,  G09G2320/0666 ,  H04N9/73

摘要： In an image display device for receiving and displaying image data, color converter converts the image data on the basis of conversion characteristics data stored in a conversion characteristics storage. The conversion characteristics designation means including means for designating the hue of the colors outputs the conversion characteristics designation data, and conversion characteristics setting means calculates the conversion characteristics data on the basis of the conversion characteristics designation data, and sets the conversion characteristics data in the conversion characteristics storage. The color converter comprises a calculation term generator for receiving the first image data, and outputting calculation terms which are effective just for the specific hues; and a matrix calculator performing matrix calculation using the calculation terms effective just for the specific hues. The user can adjust just the hue of the desired color. Real-time processing of moving pictures can be achieved without placing a heavy load on a CPU. The image after the adjustment can be displayed on a real-time basis.

公开(公告)号：US06717585B2

公开(公告)日：2004-04-06

申请号：US09919823

申请日：2001-08-02

申请人： Shuichi Kagawa ,  Hiroaki Sugiura

发明人： Shuichi Kagawa ,  Hiroaki Sugiura

IPC分类号： G09G502

CPC分类号： G09G5/04 ,  G09G5/02 ,  G09G2320/0693 ,  H04N17/04

摘要： In a color conversion characteristic determining method for use with an image display device in which image data is converted on a pixel-by-pixel basis, referring to the color conversion characteristic, and the color-converted image is displayed, a color conversion characteristic candidate is set, and color-converted data are predicted by using input image data, and then tristimulus values of the displayed colors are predicted, and the results are evaluated to judge whether the color conversion characteristic satisfies the requirement. It is possible to make the color conversion characteristic to obtain color reproduction closer to the ideal color reproduction according to a standard, and the color conversion characteristic can be determined in a short time.

公开(公告)号：US08243104B2

公开(公告)日：2012-08-14

申请号：US11631934

申请日：2005-08-08

申请人： Jun Someya ,  Shuichi Kagawa ,  Hideki Yoshii ,  Hiroaki Sugiura

发明人： Jun Someya ,  Shuichi Kagawa ,  Hideki Yoshii ,  Hiroaki Sugiura

IPC分类号： G09G5/10

CPC分类号： G09G3/3406 ,  G09G3/2003 ,  G09G2320/066 ,  G09G2360/16

摘要： An image display device and an image display method are provided so as to suppress consumption power and provide a more brightly colored display image. The image display device is provided with a light modulating means wherein image data is inputted and an image is formed by modulating light from a light source based on the image data. The image display device is also provided with a color information detecting means for detecting a quantity of a chromatic color component of an image expressed by the image data; a light source control data generating means for generating light source control data for controlling brightness of the light source; and a light source control means for controlling the brightness of the light source based on the light source control data.

摘要翻译： 提供一种图像显示装置和图像显示方法，以便抑制消耗电力并提供更鲜艳的显示图像。 图像显示装置设置有光调制装置，其中输入图像数据，并且通过基于图像数据调制来自光源的光来形成图像。 图像显示装置还设置有用于检测由图像数据表示的图像的彩色分量的量的颜色信息检测装置; 光源控制数据产生装置，用于产生用于控制光源亮度的光源控制数据; 以及光源控制装置，用于基于光源控制数据控制光源的亮度。

公开(公告)号：US07986855B2

公开(公告)日：2011-07-26

申请号：US12071028

申请日：2008-02-14

申请人： Ryosuke Namiki ,  Akihiro Nagase ,  Hideki Yoshii ,  Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Ryosuke Namiki ,  Akihiro Nagase ,  Hideki Yoshii ,  Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G06K9/40 ,  H04N1/407 ,  H04B14/04

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/182 ,  H04N19/186 ,  H04N19/80

摘要： A block noise detector has a spatial difference calculator that calculates differences between values of adjacent pixels. A spatial difference comparator detects edges by comparing the calculated differences. Eight counters count edges detected at different groups of positions spaced eight pixels apart in each horizontal line. The maximum count and the group of positions at which it occurs are detected at the end of each horizontal line to detect block noise and the positions of the block boundaries. The block noise detector is small in size because it only has to count edges in one line at a time, and detects edges accurately by comparing the difference at a given position separately with differences to the left and differences to the right.

摘要翻译： 块噪声检测器具有计算相邻像素的值之间的差异的空间差分计算器。 空间差异比较器通​​过比较计算出的差异来检测边缘。 八个计数器计数在每个水平线间隔八个像素的不同位置组中检测到的边缘。 在每条水平线的末端检测最大计数和发生位置组，以检测块噪声和块边界的位置。 块噪声检测器尺寸小，因为它只能一次计数一行中的边沿，并且通过将给定位置处的差异与左侧的差异和向右的差异进行比较来准确地检测边缘。