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1. 发明申请

US20080219551A1 IMAGE PROCESSING APPARATUS 有权
标题翻译：图像处理设备
公开(公告)号：US20080219551A1
公开(公告)日：2008-09-11
申请号：US12043671
申请日：2008-03-06
申请人： Hsu-Pin KAO , Yi-Chia Shan , Hsu-Chia Kao , Kai-Chiang Hsu
发明人： Hsu-Pin KAO , Yi-Chia Shan , Hsu-Chia Kao , Kai-Chiang Hsu
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , G06T5/009 , G06T5/40
摘要： The invention discloses an image processing apparatus for adjusting lightness of an input image. The image processing apparatus includes a first processing module, a second processing module, a third processing module, and a fourth processing module. The first processing module is used for generating a lightness histogram with reference to the input image and determining a maximum lightness and an average lightness according to the lightness histogram. The second processing module is used for determining a first gain and a second gain according to the maximum lightness and a look-up table. The third processing module is used for selecting a lightness adjusting curve according to the average lightness. The fourth processing module is used for generating an output lightness corresponding to the input image.
摘要翻译：本发明公开了一种用于调整输入图像的亮度的图像处理装置。图像处理装置包括第一处理模块，第二处理模块，第三处理模块和第四处理模块。第一处理模块用于根据输入图像生成亮度直方图，并根据亮度直方图确定最大亮度和平均亮度。第二处理模块用于根据最大亮度和查找表来确定第一增益和第二增益。第三处理模块用于根据平均亮度选择亮度调节曲线。第四处理模块用于产生与输入图像相对应的输出亮度。

2. 发明授权

US07978927B2 Image processing apparatus 有权
标题翻译：图像处理装置
公开(公告)号：US07978927B2
公开(公告)日：2011-07-12
申请号：US12043671
申请日：2008-03-06
申请人： Hsu-Pin Kao , Yi-Chia Shan , Hsu-Chia Kao , Kai-Chiang Hsu
发明人： Hsu-Pin Kao , Yi-Chia Shan , Hsu-Chia Kao , Kai-Chiang Hsu
IPC分类号： G06K9/40 , G06K9/00
CPC分类号： G06T5/002 , G06T5/009 , G06T5/40
摘要： The invention discloses an image processing apparatus for adjusting lightness of an input image. The image processing apparatus includes a first processing module, a second processing module, a third processing module, and a fourth processing module. The first processing module is used for generating a lightness histogram with reference to the input image and determining a maximum lightness and an average lightness according to the lightness histogram. The second processing module is used for determining a first gain and a second gain according to the maximum lightness and a look-up table. The third processing module is used for selecting a lightness adjusting curve according to the average lightness. The fourth processing module is used for generating an output lightness corresponding to the input image.
摘要翻译：本发明公开了一种用于调整输入图像的亮度的图像处理装置。图像处理装置包括第一处理模块，第二处理模块，第三处理模块和第四处理模块。第一处理模块用于根据输入图像生成亮度直方图，并根据亮度直方图确定最大亮度和平均亮度。第二处理模块用于根据最大亮度和查找表来确定第一增益和第二增益。第三处理模块用于根据平均亮度选择亮度调节曲线。第四处理模块用于产生与输入图像相对应的输出亮度。

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