Invention Application
US20120320434A1 OVERHEAD IMAGE-READING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT
审中-公开
OVERHEAD图像读取装置，图像处理方法和计算机程序产品
- Patent Title: OVERHEAD IMAGE-READING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT
- Patent Title (中): OVERHEAD图像读取装置，图像处理方法和计算机程序产品
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Application No.: US13445436Application Date: 2012-04-12
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Publication No.: US20120320434A1Publication Date: 2012-12-20
- Inventor: Yoshifumi TAKEDA
- Applicant: Yoshifumi TAKEDA
- Assignee: PFU LIMITED
- Current Assignee: PFU LIMITED
- Priority: JP2011-133875 20110616
- Main IPC: H04N1/04
- IPC: H04N1/04
Abstract:
An overhead image-reading apparatus includes an imaging unit integrally formed with a light source, and a light amount adjusting unit that adjusts a light amount so as to keep luminance of a surface of a medium to be read constant based on a correction value of the light amount corresponding to an object-image distance.
Information query
