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US08284316B2 Real-time image processing circuit capable of enhancing brightness contrast and color saturation 有权
实时图像处理电路能够增强亮度对比度和色彩饱和度

Real-time image processing circuit capable of enhancing brightness contrast and color saturation
Abstract:
A real-time image processing circuit includes: a first converting unit for converting an input image frame into hue data, first saturation data and first luminance data; a saturation processing unit operable to adjust the first saturation data based on saturation mapping information to generate second saturation data corresponding to the input image frame and having a saturation distribution range larger than that of the first saturation data; a luminance processing unit operable to adjust the first luminance data based on luminance mapping information to generate second luminance data corresponding to the input image frame and having a luminance distribution range larger than that of the first luminance data; and a second converting unit for converting the hue data, the second saturation data and the second luminance data into an output image frame corresponding to the input image frame and outputting the output image frame.
Abstract(Chinese):

实时图像处理电路包括：第一转换单元，用于将输入图像帧转换成色相数据，第一饱和数据和第一亮度数据; 饱和处理单元，其可操作以基于饱和度映射信息来调整所述第一饱和度数据，以生成与所述输入图像帧相对应的饱和分布范围大于所述第一饱和度数据的饱和度分布范围的第二饱和度数据; 亮度处理单元，其可操作以基于亮度映射信息调整第一亮度数据，以生成与输入图像帧相对应的亮度分布范围大于第一亮度数据的亮度分布范围的第二亮度数据; 以及第二转换单元，用于将色相数据，第二饱和度数据和第二亮度数据转换为与输入图像帧相对应的输出图像帧，并输出输出图像帧。

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