公开(公告)号：US08305396B2

公开(公告)日：2012-11-06

申请号：US12629415

申请日：2009-12-02

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Ho Young Jung

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Ho Young Jung

IPC分类号： G09G5/02

CPC分类号： G09G3/3648 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2340/16 ,  G09G2360/16

摘要： In order to improve video quality by accurately detecting a preferred color region and correcting the preferred color region to a target color, a method for correcting a color of a display device includes converting input R/G/B data into Y/Cb/Cr data, calculating a weight by an exponential function using a dispersion and a distance between an input value and a target value of the Y/Cb/Cr data, comparing the calculated weight with a target color range so as to detect a target color region, and calculating a detection probability, detecting an average value, a minimum value and a maximum value of the Y/Cb/Cr data for the detected target color region from a previous frame, calculating a correction constant using the average value, the minimum value and the maximum value of the Y/Cb/Cr data, a predetermined target value of the Y/Cb/Cr data, and the Y/Cb/Cr which is detected as the target color region and is input, adding the detection probability to the calculated correction constant as the weight so as to calculate a correction amount, correcting the input Y/Cb/Cr data using the calculated correction amount so as to output the Y/Cb/Cr data, and inversely converting the corrected Y/Cb/Cr data into R/G/B data.

摘要翻译： 为了通过精确地检测优选的颜色区域并将优选的颜色区域校正为目标颜色来提高视频质量，用于校正显示装置的颜色的方法包括将输入的R / G / B数据转换为Y / Cb / Cr数据 使用色散和Y / Cb / Cr数据的输入值与目标值之间的距离来计算权重，将所计算的权重与目标色彩范围进行比较，以便检测目标色彩区域，以及 计算检测概率，检测来自前一帧的检测目标色彩区域的Y / Cb / Cr数据的平均值，最小值和最大值，使用平均值，最小值和 Y / Cb / Cr数据的最大值，Y / Cb / Cr数据的预定目标值和被检测为目标颜色区域并被输入的Y / Cb / Cr，将检测概率与计算出的 校正常数为th 以便计算校正量，使用所计算的校正量来校正输入的Y / Cb / Cr数据，以输出Y / Cb / Cr数据，并将校正的Y / Cb / Cr数据逆变换为R / G / B数据。

公开(公告)号：US20100157150A1

公开(公告)日：2010-06-24

申请号：US12629415

申请日：2009-12-02

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Ho Young Jung

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Ho Young Jung

IPC分类号： H04N7/01 ,  G06K9/00 ,  G09G3/36

CPC分类号： G09G3/3648 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2340/16 ,  G09G2360/16

摘要： In order to improve video quality by accurately detecting a preferred color region and correcting the preferred color region to a target color, a method for correcting a color of a display device includes converting input R/G/B data into Y/Cb/Cr data, calculating a weight by an exponential function using a dispersion and a distance between an input value and a target value of the Y/Cb/Cr data, comparing the calculated weight with a target color range so as to detect a target color region, and calculating a detection probability, detecting an average value, a minimum value and a maximum value of the Y/Cb/Cr data for the detected target color region from a previous frame, calculating a correction constant using the average value, the minimum value and the maximum value of the Y/Cb/Cr data, a predetermined target value of the Y/Cb/Cr data, and the Y/Cb/Cr which is detected as the target color region and is input, adding the detection probability to the calculated correction constant as the weight so as to calculate a correction amount, correcting the input Y/Cb/Cr data using the calculated correction amount so as to output the Y/Cb/Cr data, and inversely converting the corrected Y/Cb/Cr data into R/G/B data.

摘要翻译： 为了通过精确地检测优选的颜色区域并将优选的颜色区域校正为目标颜色来提高视频质量，用于校正显示装置的颜色的方法包括将输入的R / G / B数据转换为Y / Cb / Cr数据 使用色散和Y / Cb / Cr数据的输入值与目标值之间的距离来计算权重，将所计算的权重与目标色彩范围进行比较，以便检测目标色彩区域，以及 计算检测概率，检测来自前一帧的检测目标色彩区域的Y / Cb / Cr数据的平均值，最小值和最大值，使用平均值，最小值和 Y / Cb / Cr数据的最大值，Y / Cb / Cr数据的预定目标值和被检测为目标颜色区域并被输入的Y / Cb / Cr，将检测概率与计算出的 校正常数为th 以便计算校正量，使用所计算的校正量来校正输入的Y / Cb / Cr数据，以输出Y / Cb / Cr数据，并将校正的Y / Cb / Cr数据逆变换为R / G / B数据。

公开(公告)号：US20090009539A1

公开(公告)日：2009-01-08

申请号：US12213549

申请日：2008-06-20

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Qiao Song Chen ,  Yu Hoon Kim

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Qiao Song Chen ,  Yu Hoon Kim

IPC分类号： G09G5/10

CPC分类号： G09G5/02 ,  G09G3/3611 ,  G09G2320/0242 ,  G09G2340/0428 ,  G09G2340/06 ,  H04N1/6058 ,  H04N9/67

摘要： A color gamut mapping method, which is capable of minimizing a color difference perceived by a person, preventing brightness and contrast from deteriorating, and improving color reproducibility, and a liquid crystal display device using the same are disclosed. The color gamut mapping method includes converting image data having an original gamut into lightness, chroma and hue data, adjusting a primary hue angle of the original gamut according to a reproduction gamut and adjusting the hue data according to the adjustment amount of the primary hue angle, changing the lightness of an original gamut boundary in consideration of a reproduction gamut boundary and changing the brightness data by the change amount of the lightness of the original gamut boundary, deciding a focal point, which is a reference point of color gamut mapping, according to the size, the shape and the position of the original/reproduction gamut in lightness and chroma coordinates, deciding a mapping slope according to the decided focal point FP and a mapping area in which the lightness and chroma data are located and mapping the original gamut to the reproduction gamut according to the decided mapping slope, and converting the lightness, chroma and hue data mapped to the reproduction gamut into image data.

摘要翻译： 公开了一种能够使人感觉到的色差最小化，防止亮度和对比度劣化，提高色彩再现性的色域映射方法，以及使用其的液晶显示装置。 色域映射方法包括将具有原始色域的图像数据转换为亮度，色度和色相数据，根据再现色域调整原色域的主色调角度，并根据主色调角度的调整量调整色调数据 考虑到再现色域边界改变原始色域边界的亮度，并根据原始色域边界亮度的变化量改变亮度数据，根据色域映射的参考点确定焦点，根据 根据亮度和色度坐标中的原始/再现色域的大小，形状和位置，根据确定的焦点FP决定映射斜率，并且确定亮度和色度数据所在的映射区域，并将原始色域映射 根据确定的映射斜率到再现色域，并且转换映射到代表的亮度，色度和色调数据 将色域转换为图像数据。

公开(公告)号：US20100156925A1

公开(公告)日：2010-06-24

申请号：US12630176

申请日：2009-12-03

申请人： Ji Young Ahn ,  Dong Woo Kang

发明人： Ji Young Ahn ,  Dong Woo Kang

IPC分类号： G09G5/02

CPC分类号： G09G3/3611 ,  G09G2320/0285 ,  G09G2320/0666 ,  G09G2320/0673

摘要： A method and apparatus for simulating video data of a liquid crystal display (LCD) device is disclosed. The simulation method includes providing voltage-versus-transmittance data and viewing angle-versus-transmittance data, which vary with a liquid crystal mode, using an optical simulation, converting the result of the optical simulation into a lookup table in connection with a viewing angle and an applied voltage, matching a driving voltage for gamma setting based on the liquid crystal driving mode to gray level data corresponding to the voltage-versus-transmittance data, and correcting minimum/maximum brightness levels, simulating a user-desired test image on a user interface screen; and correcting a color of data of a test image according to properties of an output panel, and finally displaying the color-corrected image.

摘要翻译： 公开了一种用于模拟液晶显示（LCD）装置的视频数据的方法和装置。 模拟方法包括使用光学模拟提供与液晶模式不同的电压 - 透射率数据和视角 - 透射率数据，将光学模拟的结果转换成与视角相关的查找表 以及施加电压，将基于液晶驱动模式的伽马设置的驱动电压与对应于电压对透射率数据的灰度级数据相匹配，以及校正最小/最大亮度水平，模拟用户期望的测试图像 用户界面屏幕; 以及根据输出面板的属性来校正测试图像的数据的颜色，并最终显示颜色校正的图像。

公开(公告)号：US08305389B2

公开(公告)日：2012-11-06

申请号：US12630176

申请日：2009-12-03

申请人： Ji Young Ahn ,  Dong Woo Kang

发明人： Ji Young Ahn ,  Dong Woo Kang

IPC分类号： G09G5/02

CPC分类号： G09G3/3611 ,  G09G2320/0285 ,  G09G2320/0666 ,  G09G2320/0673

摘要： A method and apparatus for simulating video data of a liquid crystal display (LCD) device is disclosed. The simulation method includes providing voltage-versus-transmittance data and viewing angle-versus-transmittance data, which vary with a liquid crystal mode, using an optical simulation, converting the result of the optical simulation into a lookup table in connection with a viewing angle and an applied voltage, matching a driving voltage for gamma setting based on the liquid crystal driving mode to gray level data corresponding to the voltage-versus-transmittance data, and correcting minimum/maximum brightness levels, simulating a user-desired test image on a user interface screen; and correcting a color of data of a test image according to properties of an output panel, and finally displaying the color-corrected image.

摘要翻译： 公开了一种用于模拟液晶显示（LCD）装置的视频数据的方法和装置。 模拟方法包括使用光学模拟提供与液晶模式不同的电压 - 透射率数据和视角 - 透射率数据，将光学模拟的结果转换成与视角相关的查找表 以及施加电压，将基于液晶驱动模式的伽马设置的驱动电压与对应于电压对透射率数据的灰度级数据相匹配，以及校正最小/最大亮度水平，模拟用户期望的测试图像 用户界面屏幕; 以及根据输出面板的属性来校正测试图像的数据的颜色，并最终显示颜色校正的图像。

公开(公告)号：US08160356B2

公开(公告)日：2012-04-17

申请号：US12213669

申请日：2008-06-23

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Kyoung Tae Kim

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Kyoung Tae Kim

IPC分类号： G06K9/00

CPC分类号： H04N9/67 ,  G09G3/36 ,  G09G5/02 ,  G09G2340/06 ,  G09G2360/16 ,  H04N1/60 ,  H04N1/6075 ,  H04N9/643

摘要： A method and apparatus for correcting a preferred color, which is capable of correcting the preferred color in consideration of an input image and the visual characteristics of a person by correcting differences between colors preferred by the person and an average color coordinate of a color to be corrected in the input image, and a liquid crystal display device using the same are disclosed. The method for correcting a preferred color includes converting data of an input image into lightness (L), chroma (C) and hue (H) data, detecting a preferred-color pixel from the input image, calculating average values of the L, C and H data of the preferred-color pixel, correcting the C and H data of the preferred-color pixel according to differences between the average values of the C and H data and reference values of the C and H data, correcting the L data of the preferred-color pixel according to the average value of the L data according to the hue of the preferred-color pixel, and inversely converting the corrected L, C and H data into image data.

摘要翻译： 一种用于校正优选颜色的方法和装置，其能够通过校正人的颜色和颜色的平均颜色坐标之间的差异来考虑输入图像和人的视觉特征来校正优选颜色 在输入图像中进行校正，并且公开了使用其的液晶显示装置。 用于校正优选颜色的方法包括将输入图像的数据转换成亮度（L），色度（C）和色调（H）数据，从输入图像检测优选颜色像素，计算L，C的平均值 和H数据，根据C和H数据的平均值与C和H数据的参考值之间的差异来校正优选颜色像素的C和H数据，校正L数据的L数据 根据优选颜色像素的色相根据L数据的平均值的优选颜色像素，并将校正的L，C和H数据逆向转换为图像数据。

公开(公告)号：US20090010531A1

公开(公告)日：2009-01-08

申请号：US12213548

申请日：2008-06-20

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Ji Young Yum ,  Byong Tae Ryu

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Ji Young Yum ,  Byong Tae Ryu

IPC分类号： G06K9/00

CPC分类号： G09G5/02

摘要： Disclosed herein are a method and apparatus for detecting a preferred color, which is capable of accurately detecting a preferred-color area with a small amount of computations, and a liquid crystal display device using the same. The method for detecting a preferred color includes comparing a hue value of an input pixel with hue reference values and detecting a first preferred-color pixel, and performing a best linear estimation (BLE) operation with respect to the first preferred-color pixel and detecting a second preferred-color pixel.

摘要翻译： 这里公开了一种用于检测优选颜色的方法和装置，其能够以少量计算精确地检测优选颜色区域，以及使用该颜色的液晶显示装置。 用于检测优选颜色的方法包括将输入像素的色调值与色相参考值进行比较，并检测第一优选颜色像素，并对第一优选颜色像素执行最佳线性估计（BLE）操作，并且检测 第二优选颜色像素。

公开(公告)号：US20080317340A1

公开(公告)日：2008-12-25

申请号：US12213669

申请日：2008-06-23

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Kyoung Tae Kim

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Kyoung Tae Kim

IPC分类号： G06K9/00

CPC分类号： H04N9/67 ,  G09G3/36 ,  G09G5/02 ,  G09G2340/06 ,  G09G2360/16 ,  H04N1/60 ,  H04N1/6075 ,  H04N9/643

摘要： A method and apparatus for correcting a preferred color, which is capable of correcting the preferred color in consideration of an input image and the visual characteristics of a person by correcting differences between colors preferred by the person and an average color coordinate of a color to be corrected in the input image, and a liquid crystal display device using the same are disclosed. The method for correcting a preferred color includes converting data of an input image into lightness (L), chroma (C) and hue (H) data, detecting a preferred-color pixel from the input image, calculating average values of the L, C and H data of the preferred-color pixel, correcting the C and H data of the preferred-color pixel according to differences between the average values of the C and H data and reference values of the C and H data, correcting the L data of the preferred-color pixel according to the average value of the L data according to the hue of the preferred-color pixel, and inversely converting the corrected L, C and H data into image data.

摘要翻译： 一种用于校正优选颜色的方法和装置，其能够通过校正人的颜色和颜色的平均颜色坐标之间的差异来考虑输入图像和人的视觉特征来校正优选颜色 在输入图像中进行校正，并且公开了使用其的液晶显示装置。 用于校正优选颜色的方法包括将输入图像的数据转换成亮度（L），色度（C）和色调（H）数据，从输入图像检测优选颜色像素，计算L，C的平均值 和H数据，根据C和H数据的平均值与C和H数据的参考值之间的差异来校正优选颜色像素的C和H数据，校正L数据的L数据 根据优选颜色像素的色相根据L数据的平均值的优选颜色像素，并将校正的L，C和H数据逆向转换为图像数据。

公开(公告)号：US08150148B2

公开(公告)日：2012-04-03

申请号：US12213548

申请日：2008-06-20

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Ji Young Yum ,  Byong Tae Ryu

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Ji Young Yum ,  Byong Tae Ryu

IPC分类号： G06K9/00

CPC分类号： G09G5/02

摘要： Disclosed herein are a method and apparatus for detecting a preferred color, which is capable of accurately detecting a preferred-color area with a small amount of computations, and a liquid crystal display device using the same. The method for detecting a preferred color includes comparing a hue value of an input pixel with hue reference values and detecting a first preferred-color pixel, and performing a best linear estimation (BLE) operation with respect to the first preferred-color pixel and detecting a second preferred-color pixel.

摘要翻译： 这里公开了一种用于检测优选颜色的方法和装置，其能够以少量计算精确地检测优选颜色区域，以及使用该颜色的液晶显示装置。 用于检测优选颜色的方法包括将输入像素的色调值与色相参考值进行比较，并检测第一优选颜色像素，并对第一优选颜色像素执行最佳线性估计（BLE）操作，并且检测 第二优选颜色像素。

公开(公告)号：US08049765B2

公开(公告)日：2011-11-01

申请号：US12213549

申请日：2008-06-20

申请人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Qiao Song Chen ,  Yu Hoon Kim

发明人： Ji Young Ahn ,  Dong Woo Kang ,  Choon Woo Kim ,  Qiao Song Chen ,  Yu Hoon Kim

IPC分类号： G09G5/02 ,  H04N5/202 ,  H04N17/00 ,  H04N9/64 ,  H04N5/14 ,  G06K9/40 ,  G06K9/00

CPC分类号： G09G5/02 ,  G09G3/3611 ,  G09G2320/0242 ,  G09G2340/0428 ,  G09G2340/06 ,  H04N1/6058 ,  H04N9/67

摘要： A color gamut mapping method, which is capable of minimizing a color difference perceived by a person, preventing brightness and contrast from deteriorating, and improving color reproducibility, and a liquid crystal display device using the same are disclosed. The color gamut mapping method includes converting image data having an original gamut into lightness, chroma and hue data, adjusting a primary hue angle of the original gamut according to a reproduction gamut and adjusting the hue data according to the adjustment amount of the primary hue angle, changing the lightness of an original gamut boundary in consideration of a reproduction gamut boundary and changing the brightness data by the change amount of the lightness of the original gamut boundary, deciding a focal point, which is a reference point of color gamut mapping, according to the size, the shape and the position of the original/reproduction gamut in lightness and chroma coordinates, deciding a mapping slope according to the decided focal point FP and a mapping area in which the lightness and chroma data are located and mapping the original gamut to the reproduction gamut according to the decided mapping slope, and converting the lightness, chroma and hue data mapped to the reproduction gamut into image data.

摘要翻译： 公开了一种能够使人感觉到的色差最小化，防止亮度和对比度劣化，提高色彩再现性的色域映射方法，以及使用其的液晶显示装置。 色域映射方法包括将具有原始色域的图像数据转换为亮度，色度和色相数据，根据再现色域调整原色域的主色调角度，并根据主色调角度的调整量调整色调数据 考虑到再现色域边界改变原始色域边界的亮度，并根据原始色域边界亮度的变化量改变亮度数据，根据色域映射的参考点确定焦点，根据 根据亮度和色度坐标中的原始/再现色域的大小，形状和位置，根据确定的焦点FP决定映射斜率，并且确定亮度和色度数据所在的映射区域，并将原始色域映射 根据确定的映射斜率到再现色域，并且转换映射到代表的亮度，色度和色调数据 将色域转换为图像数据。