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公开(公告)号:US08649629B2
公开(公告)日:2014-02-11
申请号:US11902096
申请日:2007-09-19
申请人: Chae Whan Lim , Jong In Kwak , Ick Hoon Jang , Doo Hyun Choi , Nam Chul Kim
发明人: Chae Whan Lim , Jong In Kwak , Ick Hoon Jang , Doo Hyun Choi , Nam Chul Kim
IPC分类号: G06K9/40
CPC分类号: H04N5/2351 , H04N1/4072 , H04N1/6086 , H04N5/243
摘要: An image enhancement method and system are provided. The image enhancement method and system are capable of improving image quality by performing gamma corrections on global and local illuminations and reflectance estimated from an input image, in consideration of dynamic range and contrast of the image, respectively. Particularly, in a case of a color image, the red, green, and blue (RGB) component images are converted into hue, saturation, and value (HSV) component images, and the global and local illuminations and reflectance estimated from the V component image. By converting the hue (H), saturation (S), and enhanced value (V) into RGB, an enhanced color image can be obtained.
摘要翻译: 提供了一种图像增强方法和系统。 考虑到图像的动态范围和对比度,图像增强方法和系统能够通过对全局和局部照明进行伽马校正和从输入图像估计的反射率来提高图像质量。 特别地,在彩色图像的情况下,红色,绿色和蓝色(RGB)分量图像被转换成色调,饱和度和值(HSV)分量图像,并且从V分量估计的全局和局部照度和反射率 图片。 通过将色调(H),饱和度(S)和增强值(V)转换为RGB,可以获得增强的彩色图像。
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公开(公告)号:US20080101719A1
公开(公告)日:2008-05-01
申请号:US11902096
申请日:2007-09-19
申请人: Chae Whan Lim , Jong In Kwak , Ick Hoon Jang , Doo Hyun Choi , Nam Chul Kim
发明人: Chae Whan Lim , Jong In Kwak , Ick Hoon Jang , Doo Hyun Choi , Nam Chul Kim
IPC分类号: G06K9/40
CPC分类号: H04N5/2351 , H04N1/4072 , H04N1/6086 , H04N5/243
摘要: An image enhancement method and system are provided. The image enhancement method and system are capable of improving image quality by performing gamma corrections on global and local illuminations and reflectance estimated from an input image, in consideration of dynamic range and contrast of the image, respectively. Particularly, in a case of a color image, the red, green, and blue (RGB) component images are converted into hue, saturation, and value (HSV) component images, and the global and local illuminations and reflectance estimated from the V component image. By converting the hue (H), saturation (S), and enhanced value (V) into RGB, an enhanced color image can be obtained.
摘要翻译: 提供一种图像增强方法和系统。 考虑到图像的动态范围和对比度,图像增强方法和系统能够通过对全局和局部照明进行伽马校正和从输入图像估计的反射率来提高图像质量。 特别地,在彩色图像的情况下,红色,绿色和蓝色(RGB)分量图像被转换成色调,饱和度和值(HSV)分量图像,并且从V分量估计的全局和局部照度和反射率 图片。 通过将色调(H),饱和度(S)和增强值(V)转换为RGB,可以获得增强的彩色图像。
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