发明授权
US08207931B2 Method of displaying a low dynamic range image in a high dynamic range
有权
在高动态范围内显示低动态范围图像的方法
- 专利标题： Method of displaying a low dynamic range image in a high dynamic range
- 专利标题（中）： 在高动态范围内显示低动态范围图像的方法
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申请号： US11809095申请日： 2007-05-31
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公开(公告)号： US08207931B2公开(公告)日： 2012-06-26
- 发明人: Wei Zhang , Huajun Peng , Chen-Jung Tsai
- 申请人： Wei Zhang , Huajun Peng , Chen-Jung Tsai
- 申请人地址： HK Shatin, New Territories
- 专利权人： Hong Kong Applied Science and Technology Research Institute Company Limited
- 当前专利权人： Hong Kong Applied Science and Technology Research Institute Company Limited
- 当前专利权人地址： HK Shatin, New Territories
- 代理机构： Wells St. John, PS
- 主分类号： G09G3/36
- IPC分类号： G09G3/36 ; G09G5/02
摘要：
A method of increasing the dynamic range of an image comprising a plurality of pixels each having a luminance value within a first luminance dynamic range. The method includes determining a background luminance value for each pixel of the image and determining a minimum and a maximum of the background luminance values. A conversion factor is then determined for each pixel of the image based on the minimum and maximum of the background luminance values. The image id converted from the first luminance dynamic range to a second luminance dynamic range by multiplying the luminance value of each pixel of the image by its conversion factor.
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