Invention Grant
US08675249B2 Image processing apparatus, method, and program-recorded storage medium for correcting saturation
有权
用于校正饱和度的图像处理装置，方法和程序记录存储介质
- Patent Title: Image processing apparatus, method, and program-recorded storage medium for correcting saturation
- Patent Title (中): 用于校正饱和度的图像处理装置，方法和程序记录存储介质
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Application No.: US12811918Application Date: 2010-05-13
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Publication No.: US08675249B2Publication Date: 2014-03-18
- Inventor: Kiyoshi Umeda , Ryosuke Iguchi
- Applicant: Kiyoshi Umeda , Ryosuke Iguchi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-122804 20090521
- International Application: PCT/JP2010/058489 WO 20100513
- International Announcement: WO2010/134563 WO 20101125
- Main IPC: H04N1/60
- IPC: H04N1/60 ; G06K9/00
Abstract:
A gradation-correcting curve to correct a gradation of an input image is generated. Gradation correction based on the gradation-correcting curve is made to a boundary pixel of a color-reproduction space at the same saturation as that of a target lattice point and at a hue of the target lattice point. An equal-saturation line is set by using the boundary pixel of the color-reproduction space after the gradation correction. A saturation-correction amount of the target lattice point is decided based on the gradation-correcting curve and the equal-saturation line.
Public/Granted literature
- US20110109923A1 IMAGE PROCESSING APPARATUS, METHOD, AND PROGRAM-RECORDED STORAGE MEDIUM Public/Granted day:2011-05-12
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