JPH0231557A - Picture input device - Google Patents

Picture input device

Info

Publication number
JPH0231557A
JPH0231557A JP63182276A JP18227688A JPH0231557A JP H0231557 A JPH0231557 A JP H0231557A JP 63182276 A JP63182276 A JP 63182276A JP 18227688 A JP18227688 A JP 18227688A JP H0231557 A JPH0231557 A JP H0231557A
Authority
JP
Japan
Prior art keywords
picture
signals
different wavelengths
light sources
storing means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63182276A
Inventor
Naoki Maeda
Original Assignee
Sumitomo Electric Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Ind Ltd filed Critical Sumitomo Electric Ind Ltd
Priority to JP63182276A priority Critical patent/JPH0231557A/en
Publication of JPH0231557A publication Critical patent/JPH0231557A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To obtain the clear picture of necessary information by successively causing lighting light sources having different wavelengths to emit light and storing signals of obtained picture data in a storing means, and then, fetching necessary picture data only by performing AND calculation at every picture element.
CONSTITUTION: A picture input device is confronted a medium 2 to be read and plural lighting light sources 31 and 32 having different wavelengths are successively caused to emit light. The reflected light from the medium 2 forms an image on an image sensor 5 through an optical system. The image sensor 5 scans picture signals generated by optical inputs at every picture element and sends the picture signals time sequentially. A binarizing means 6 converts the picture signals into binary picture signals and stores the binary picture signals in plural picture storing means 7. The output of each picture storing means 7 is set to an AND circuit 8 where the AND of the picture data of the light sources having different wavelengths is found at every picture element of each picture. As a result, the part where the information of every picture element overlaps is outputted as an output picture. Therefore, only necessary information is outputted and the picture thus obtained becomes extremely clear.
COPYRIGHT: (C)1990,JPO&Japio
JP63182276A 1988-07-20 1988-07-20 Picture input device Pending JPH0231557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63182276A JPH0231557A (en) 1988-07-20 1988-07-20 Picture input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63182276A JPH0231557A (en) 1988-07-20 1988-07-20 Picture input device

Publications (1)

Publication Number Publication Date
JPH0231557A true JPH0231557A (en) 1990-02-01

Family

ID=16115437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63182276A Pending JPH0231557A (en) 1988-07-20 1988-07-20 Picture input device

Country Status (1)

Country Link
JP (1) JPH0231557A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009193429A (en) * 2008-02-15 2009-08-27 Mitsubishi Electric Corp Image reading device
JP2010244331A (en) * 2009-04-07 2010-10-28 Mitsubishi Electric Corp Image reading device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009193429A (en) * 2008-02-15 2009-08-27 Mitsubishi Electric Corp Image reading device
JP2010244331A (en) * 2009-04-07 2010-10-28 Mitsubishi Electric Corp Image reading device

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