发明授权
- 专利标题: Method for enhancing image data by noise reduction or sharpening
- 专利标题(中): 通过降噪或锐化来增强图像数据的方法
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申请号: US128937申请日: 1987-12-04
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公开(公告)号: US4783840A公开(公告)日: 1988-11-08
- 发明人: Woo-Jin Song
- 申请人: Woo-Jin Song
- 申请人地址: MA Cambridge
- 专利权人: Polaroid Corporation
- 当前专利权人: Polaroid Corporation
- 当前专利权人地址: MA Cambridge
- 主分类号: H04N5/225
- IPC分类号: H04N5/225 ; G06T5/20 ; G06K9/40 ; G06K9/44
摘要:
An image enhancing process promotes either noise reduction or image sharpening on a pixel-by-pixel basis as a function of the recognition of specific patterns of sampled pixel values surrounding each pixel to be enhanced. The sampled pixel values are divided into two or more subgroups and the enhanced pixel value is provided to promote either image sharpening or noise reduction as a function of the number of pixel values in the different subgroups and their positions relative to each other in the subgroups.
公开/授权文献
- US5492917A Endothelin antagonists incorporating a cyclobutane 公开/授权日:1996-02-20
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