Invention Grant
US07710470B2 Image processing apparatus that reduces noise, image processing method that reduces noise, electronic camera that reduces noise, and scanner that reduces noise
有权
降低噪声的图像处理装置，降低噪声的图像处理方法，降低噪声的电子照相机以及降低噪声的扫描仪
- Patent Title: Image processing apparatus that reduces noise, image processing method that reduces noise, electronic camera that reduces noise, and scanner that reduces noise
- Patent Title (中): 降低噪声的图像处理装置，降低噪声的图像处理方法，降低噪声的电子照相机以及降低噪声的扫描仪
-
Application No.: US11410076Application Date: 2006-04-25
-
Publication No.: US07710470B2Publication Date: 2010-05-04
- Inventor: Atsushi Kohashi
- Applicant: Atsushi Kohashi
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2005-131659 20050428
- Main IPC: H04N5/217
- IPC: H04N5/217
Abstract:
In a noise reduction apparatus or method, at least one of a luminance noise estimate value estimating a luminance noise of a target pixel and a chrominance noise estimate value estimating a chrominance noise of the target pixel is estimated in accordance with an average of luminance signals allocated to a first set of pixels including the target pixel. A noise reduction is performed to a selected one of the luminance noise and the chrominance noise one target pixel by one target pixel based on a corresponding one of a first set of information including the average of luminance signals and the luminance noise estimate value and a second set of information including an average of chrominance signals and the chrominance noise estimate value, the average of chrominance signals being allocated to a second set of pixels including the target pixel.
Public/Granted literature
- US20060245008A1 Image processing apparatus, image processing method, electronic camera, and scanner Public/Granted day:2006-11-02
Information query
