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    • 5. 发明授权
    • Apparatus, medium, and method with automatic white balance control
    • 具有自动白平衡控制的装置,介质和方法
    • US07791649B2
    • 2010-09-07
    • US11356223
    • 2006-02-17
    • Sung-su KimHo-young LeeDu-sik ParkChang-yeong Kim
    • Sung-su KimHo-young LeeDu-sik ParkChang-yeong Kim
    • H04N9/73G06K9/00
    • H04N1/608H04N1/4072
    • An automatic white balance control image apparatus, medium, and method. The automatic white balance control imaging apparatus may include a color space conversion unit converting the input image data into color space data having a chromatic component, a gray region extraction unit extracting a gray region for the input image data based on gray regions for light sources, the gray regions being detected based on plural light sources and a predetermined color checker, a detection unit extracting initial light source information using a color gamut average value and a color gamut center value, and adjusting the initial light source information in order for a chromatic component introduced into the extracted gray region to be excluded, a gain control unit calculating gains to scale the input image data based on the adjusted initial light source information, and controlling a white balance by applying the calculated gains to the input image data.
    • 一种自动白平衡控制图像装置,介质和方法。 自动白平衡控制成像装置可以包括将输入图像数据转换为具有彩色分量的色空间数据的颜色空间转换单元,基于用于光源的灰色区域为输入图像数据提取灰度区域的灰度区域提取单元, 基于多个光源和预定颜色检查器检测灰度区域,检测单元使用色域平均值和色域中心值提取初始光源信息,并且调整初始光源信息以便进行彩色分量 被引入要被排除的提取的灰色区域中,增益控制单元基于经调整的初始光源信息计算增益以缩放输入图像数据,并且通过将计算出的增益应用于输入图像数据来控制白平衡。