发明授权
- 专利标题： Image processing method and apparatus
- 专利标题（中）： 图像处理方法和装置
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申请号： US09244950申请日： 1999-02-10
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公开(公告)号： US06445831B1公开(公告)日： 2002-09-03
- 发明人: Hisao Arai
- 申请人： Hisao Arai
- 优先权： JP10-028400 19980210; JP10-054819 19980306; JP10-097403 19980409
- 主分类号： G06K940
- IPC分类号： G06K940
摘要：
Graininess suppression image processing is carried out on an original image signal, and a graininess suppression processing image signal is obtained from the graininess suppression image processing. Also, sharpness enhancement image processing is carried out on the original image signal, and a sharpness enhancement processing image signal is obtained from the sharpness enhancement image processing. Processing for obtaining a processed image signal is carried out in accordance with the graininess suppression processing image signal and the sharpness enhancement processing image signal. The processed image signal is obtained with operation processing carried out on image signal components of the graininess suppression processing image signal and the sharpness enhancement processing image signal, which image signal components represent corresponding pixels in two images represented by the graininess suppression processing image signal and the sharpness enhancement processing image signal.