JPS5639677A - Method and device for reading picture - Google Patents

Method and device for reading picture

Info

Publication number
JPS5639677A
JPS5639677A JP11544679A JP11544679A JPS5639677A JP S5639677 A JPS5639677 A JP S5639677A JP 11544679 A JP11544679 A JP 11544679A JP 11544679 A JP11544679 A JP 11544679A JP S5639677 A JPS5639677 A JP S5639677A
Authority
JP
Japan
Prior art keywords
region iii
outputs
picture
voltage
value
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
JP11544679A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Tanaka
Shozo Kaieda
Tokuji Kakiuchi
Nobuaki Nishioka
Yukio Tadauchi
Hiroaki Kojima
Hidekazu Nakagami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP11544679A priority Critical patent/JPS5639677A/en
Publication of JPS5639677A publication Critical patent/JPS5639677A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/03—Details of scanning heads ; Means for illuminating the original for picture information pick-up with photodetectors arranged in a substantially linear array

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Heads (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To obtain a reproduced picture of high quality that has no unevenness at its circumferential edges, by processing either circumferential edge of a picture as a coloring part. CONSTITUTION:Picture output voltage e0 of image sensor 8 is compared 20 to reference value (x); in region III-1W where it is greater than value (x), ''1'' is outputted and in region III-1B where it is less than (x), ''0'' is outputted. Comparator 22 outputs ''1'' in region III-1 where voltage e0 drops. Voltage e0 is further compared 32 to reference value (z) and when the pulse value is greater, FF33 is reset to apply its output ''0'' to NAND gate 27 via inverter 34. Therefore, gate 27 outputs ''0'' and NAND gate 28 outputs ''1'', so that a signal showing a coloring part in black is generated in region III-1.
JP11544679A 1979-09-08 1979-09-08 Method and device for reading picture Pending JPS5639677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11544679A JPS5639677A (en) 1979-09-08 1979-09-08 Method and device for reading picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11544679A JPS5639677A (en) 1979-09-08 1979-09-08 Method and device for reading picture

Publications (1)

Publication Number Publication Date
JPS5639677A true JPS5639677A (en) 1981-04-15

Family

ID=14662744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11544679A Pending JPS5639677A (en) 1979-09-08 1979-09-08 Method and device for reading picture

Country Status (1)

Country Link
JP (1) JPS5639677A (en)

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