发明授权
- 专利标题: Method and apparatus for dynamic range enhancement of an image
- 专利标题(中): 图像动态范围增强的方法和装置
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申请号: US14341679申请日: 2014-07-25
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公开(公告)号: US09218653B2公开(公告)日: 2015-12-22
- 发明人: Parijat Prakash Prabhudesai , Sabari Raju Shanmugam , Narasimha Gopalakrishna Pai
- 申请人: Samsung Electronics Co., Ltd.
- 申请人地址: KR Suwon-Si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-Si
- 优先权: IN3579/CHE/2013 20130812; KR10-2013-0122017 20131014
- 主分类号: G06K9/40
- IPC分类号: G06K9/40 ; G06T5/50 ; G06T5/00 ; H04N5/235
摘要:
A method and apparatus are provided for enhancing the local dynamic range of an image using the contents of exposure bracketed image set without affecting overall dynamic range of the image. The method allows a user to select at least one region of a reference image for enhancement after receiving the reference image from the user. Further the method comprises segmenting the reference image by using exposure weights, and selects an enhancement support image from an exposure bracketed image set. Furthermore the method determines weight maps of reference and enhancement support images and generates dynamic range enhanced reference image using determined weight maps.
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