Invention Grant
- Patent Title: Low complexity color de-noising filter
- Patent Title (中): 低复杂度的颜色去噪滤波器
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Application No.: US11694103Application Date: 2007-03-30
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Publication No.: US07903900B2Publication Date: 2011-03-08
- Inventor: Hon Wah Wong , Ka Man Cheng , Kar Kin Edwin Lee
- Applicant: Hon Wah Wong , Ka Man Cheng , Kar Kin Edwin Lee
- Applicant Address: HK Shatin
- Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
- Current Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
- Current Assignee Address: HK Shatin
- Agency: Ella Cheong Hong Kong
- Agent Margaret Burke; Sam Yip
- Main IPC: G06K9/40
- IPC: G06K9/40 ; H04B1/66

Abstract:
Methods and apparatuses for color denoising are described. There is provided an image processing method. The method comprises the steps of retrieving chrominance level for a plurality of pixels in a predetermined configuration; computing a weight for each pixel; applying the weight to the chrominance level for each the pixel; summing the weighted chrominance level to output a chrominance level for a center pixel at the center of said predetermined configuration; and repeating the above steps for every pixel per image. The color noise can be reduced while preserving the edge without any edge detection.
Public/Granted literature
- US20080239155A1 Low Complexity Color De-noising Filter Public/Granted day:2008-10-02
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