Invention Grant
US08154613B2 Signal processing apparatus and method for reducing jaggedness on color image edge and image sensing apparatus having same
失效
用于减少彩色图像边缘上的锯齿状的信号处理装置和方法以及具有该彩色图像边缘的图像感测装置
- Patent Title: Signal processing apparatus and method for reducing jaggedness on color image edge and image sensing apparatus having same
- Patent Title (中): 用于减少彩色图像边缘上的锯齿状的信号处理装置和方法以及具有该彩色图像边缘的图像感测装置
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Application No.: US11550565Application Date: 2006-10-18
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Publication No.: US08154613B2Publication Date: 2012-04-10
- Inventor: Eiichiro Ikeda , Toshiaki Endo , Takaaki Fukui
- Applicant: Eiichiro Ikeda , Toshiaki Endo , Takaaki Fukui
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2000-191657 20000626
- Main IPC: H04N5/228
- IPC: H04N5/228 ; H04N9/64 ; G06K9/00
Abstract:
In a signal processing apparatus for processing an image signal, a hue difference between adjoining pixels is detected by a color image edge detector, and an aperture control main gain circuit amplifies a luminance signal using a gain determined on the basis of the hue difference detected by the color image edge detector to enhance an edge pixel of an image.
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