Invention Grant
US08054507B2 Image data luminance compensating method and sheet-feeding scanning apparatus using such method
失效
使用这种方法的图像数据亮度补偿方法和送纸扫描装置
- Patent Title: Image data luminance compensating method and sheet-feeding scanning apparatus using such method
- Patent Title (中): 使用这种方法的图像数据亮度补偿方法和送纸扫描装置
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Application No.: US12268931Application Date: 2008-11-11
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Publication No.: US08054507B2Publication Date: 2011-11-08
- Inventor: Sheng-Ping Wang , Chang-Yung Feng
- Applicant: Sheng-Ping Wang , Chang-Yung Feng
- Applicant Address: TW Taipei
- Assignee: Primax Electronics Ltd.
- Current Assignee: Primax Electronics Ltd.
- Current Assignee Address: TW Taipei
- Agency: Kirton & McConkie
- Agent Evan R. Witt
- Priority: TW97111926A 20080402
- Main IPC: H04N1/40
- IPC: H04N1/40
Abstract:
The present invention relates to an image data luminance compensating method and a sheet-feeding scanning apparatus using such an image data luminance compensating method. According to the reference luminance value change of the reference background strip before and after the current document passes through the scan operating region, the luminance gain associated with compensation of the image data of the next document is determined.
Public/Granted literature
- US20090251745A1 IMAGE DATA LUMINANCE COMPENSATING METHOD AND SHEET-FEEDING SCANNING APPARATUS USING SUCH METHOD Public/Granted day:2009-10-08
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