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    • 32. 发明申请
    • Apparatus and method for dithering for multi-toning
    • 用于多色调抖动的装置和方法
    • US20070153332A1
    • 2007-07-05
    • US11607954
    • 2006-12-04
    • Yun-tae KimChang-yeong KimHeui-keun ChohDu-sik Park
    • Yun-tae KimChang-yeong KimHeui-keun ChohDu-sik Park
    • H04N1/405
    • G06T11/001G06T5/50
    • A method and apparatus for dithering for multi-toning are provided. The apparatus includes a mask-pattern-generating unit that generates a mask pattern on R channel, G channel and B channel by selecting pattern values constituting the mask pattern on the channels based on randomly-determined seed values; a spatial-weight-determining unit that determines the weight for spatial dithering by using the pattern values and K-bit LSB data of the high-tone input image; and an output unit that outputs an M-bit image by applying the weight to M-bit input image data, exempting the K-bit LSB data, in a dithering apparatus for expressing an M+K bit high-tone input image in an M-bit low-tone output device.
    • 提供了用于多色调抖动的方法和装置。 该装置包括:掩模图案生成单元,其基于随机确定的种子值,通过在信道上选择构成掩模图案的图案值,在R信道,G信道和B信道上生成掩模图案; 空间权重确定单元,其通过使用高色调输入图像的图案值和K比特LSB数据来确定空间抖动的权重; 以及输出单元,通过将M比特输入图像数据的权重应用于M比特输入图像数据来输出M比特图像,该K比特LSB数据在用于表示M + K位高音输入图像的抖动装置中用于表示M 位低音输出设备。
    • 33. 发明授权
    • Apparatus and method for dithering for multi-toning
    • 用于多色调抖动的装置和方法
    • US08111429B2
    • 2012-02-07
    • US11607954
    • 2006-12-04
    • Yun-tae KimChang-yeong KimHeui-keun ChohDu-sik Park
    • Yun-tae KimChang-yeong KimHeui-keun ChohDu-sik Park
    • H04N1/405
    • G06T11/001G06T5/50
    • A method and apparatus for dithering for multi-toning are provided. The apparatus includes a mask-pattern-generating unit that generates a mask pattern on R channel, G channel and B channel by selecting pattern values constituting the mask pattern on the channels based on randomly-determined seed values; a spatial-weight-determining unit that determines the weight for spatial dithering by using the pattern values and K-bit LSB data of the high-tone input image; and an output unit that outputs an M-bit image by applying the weight to M-bit input image data, exempting the K-bit LSB data, in a dithering apparatus for expressing an M+K bit high-tone input image in an M-bit low-tone output device.
    • 提供了用于多色调抖动的方法和装置。 该装置包括:掩模图案生成单元,其基于随机确定的种子值,通过在信道上选择构成掩模图案的图案值,在R信道,G信道和B信道上生成掩模图案; 空间权重确定单元,其通过使用高色调输入图像的图案值和K比特LSB数据来确定空间抖动的权重; 以及输出单元,通过将M比特输入图像数据的权重应用于M比特输入图像数据来输出M比特图像,该K比特LSB数据在用于表示M + K位高音输入图像的抖动装置中用于表示M 位低音输出设备。
    • 36. 发明申请
    • Color temperature conversion method and apparatus having luminance correction conversion function
    • 具有亮度校正转换功能的色温转换方法和装置
    • US20070081720A1
    • 2007-04-12
    • US11543124
    • 2006-10-05
    • Hyun-wook OkDu-sik ParkChang-yeong Kim
    • Hyun-wook OkDu-sik ParkChang-yeong Kim
    • G06K9/00
    • H04N1/6086H04N1/6027
    • A color temperature conversion method and apparatus having a luminance correction conversion function are provided. The color temperature conversion method controls a color temperature of an image display device. In the color temperature conversion method, a user-set color temperature is compared with a pre-stored basic color temperature for each sample luminance, thus converting a color temperature of an input pixel. A luminance scale factor corresponding to the user-set color temperature is calculated with respect to the converted input pixel, and a luminance correction conversion function is performed using the calculated luminance scale factor. Accordingly, a color temperature conversion method and apparatus having a luminance correction conversion function corrects luminance using a preset luminance scale factor, thus preventing distorted gray scale representation that may occur in the conversion and correction of color temperature.
    • 提供具有亮度校正转换功能的色温转换方法和装置。 色温转换方法控制图像显示装置的色温。 在色温转换方法中,将用户设定的色温与每个采样亮度的预存基本色温进行比较,从而转换输入像素的色温。 对于转换的输入像素计算与用户设定的色温相对应的亮度比例因子,并且使用所计算的亮度比例因子来执行亮度校正转换功能。 因此,具有亮度校正转换功能的色温转换方法和装置使用预设的亮度比例因子校正亮度,从而防止在色温的转换和校正中可能发生的失真灰度表示。
    • 39. 发明授权
    • Image processing apparatus and method of enhancing visibility of displayed image
    • 提高显示图像的可见度的图像处理装置和方法
    • US08913194B2
    • 2014-12-16
    • US11768412
    • 2007-06-26
    • In-ji KimHyun-wook OkChang-Yeong KimDu-sik ParkYoung-ran HanWon-hee Choe
    • In-ji KimHyun-wook OkChang-Yeong KimDu-sik ParkYoung-ran HanWon-hee Choe
    • H04N5/57H04N5/58H04N5/00G06T5/00
    • G06T5/009G06T2207/10024G06T2207/20081
    • An image processing apparatus and method to reduce the deterioration of visibility of an image displayed on an image display device occurring under various lighting conditions when the brightness of ambient light is brighter than that of the image display device, and includes a sensor to sense the brightness of an external light, a unit to store a luminance-contrast model curve representing an optimal contrast value for a particular luminance for each brightness of the external light, a unit to determine a target luminance value according to the sensed brightness of the external light, to obtain a contrast value corresponding to the target luminance value with reference to the luminance-contrast model curve corresponding to the sensed brightness, and to adjust an input image to have the target luminance value and the obtained contrast value, and a unit to adjust the saturation of the adjusted input image according to the target luminance value and the obtained contrast value.
    • 一种图像处理装置和方法,用于当环境光的亮度比图像显示装置的亮度更亮时,减少在各种照明条件下发生的图像显示装置上显示的图像的可见度的劣化,并且包括用于感测亮度的传感器 外部光的单位,用于存储表示对于外部光的每个亮度的特定亮度的最佳对比度值的亮度对比度模型曲线的单元,根据感测到的外部光的亮度来确定目标亮度值的单元, 参照对应于感测到的亮度的亮度对比度模型曲线来获得与目标亮度值对应的对比度值,并且调整输入图像以具有目标亮度值和获得的对比度值,以及调整单元 根据目标亮度值和所获得的对比度值调整的输入图像的饱和度。
    • 40. 发明授权
    • Color correction apparatus and method
    • 颜色校正装置及方法
    • US07720280B2
    • 2010-05-18
    • US11591598
    • 2006-11-02
    • Sung-su KimDu-sik ParkChang-yeong Kim
    • Sung-su KimDu-sik ParkChang-yeong Kim
    • G06K9/00
    • H04N1/62
    • A color correction apparatus and method are provided. The color correction apparatus includes: a chromatic region determination module determining a first chromatic region to which an input pixel constituting an input image belongs and a second chromatic region neighboring the first chromatic region on a basis of specified chromatic region division information; a polynomial regression operation module performing polynomial regression on the first chromatic region and the second chromatic region; and a blending module providing corrected pixel information for the input pixel by giving weight values to results of the polynomial regression on the first chromatic region and the second chromatic region. The color correction method includes: determining the first and second chromatic regions; performing polynomial regression on the first and second chromatic regions; and providing corrected pixel information for the input pixel by giving weight values to results of the polynomial regression on the first and second chromatic regions.
    • 提供了一种颜色校正装置和方法。 色彩校正装置包括:彩色区域确定模块,根据指定的色区分割信息确定构成输入图像的输入像素所属的第一色区域和与第一色区域相邻的第二色区域; 多项式回归运算模块,对所述第一色区域和所述第二色区域进行多项式回归; 以及混合模块,通过对第一色区域和第二色区域上的多项式回归的结果给出权重值,为输入像素提供校正像素信息。 颜色校正方法包括:确定第一和第二彩色区域; 在第一和第二彩色区域执行多项式回归; 以及通过对第一和第二彩色区域上的多项式回归的结果给出权重值来为输入像素提供校正像素信息。