JPS5210613A - Two-value conversion circuit of image signal - Google Patents

Two-value conversion circuit of image signal

Info

Publication number
JPS5210613A
JPS5210613A JP50075565A JP7556575A JPS5210613A JP S5210613 A JPS5210613 A JP S5210613A JP 50075565 A JP50075565 A JP 50075565A JP 7556575 A JP7556575 A JP 7556575A JP S5210613 A JPS5210613 A JP S5210613A
Authority
JP
Japan
Prior art keywords
image signal
conversion circuit
value conversion
image
proportional
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.)
Granted
Application number
JP50075565A
Other languages
Japanese (ja)
Other versions
JPS5948589B2 (en
Inventor
Tsutomu Tatewaki
Masayoshi Yoshikawa
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP50075565A priority Critical patent/JPS5948589B2/en
Publication of JPS5210613A publication Critical patent/JPS5210613A/en
Publication of JPS5948589B2 publication Critical patent/JPS5948589B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To obtain clear-cut image by combining standard voltage and that proportional to the level of the background shade from the image signal by means of the integration circuit in response to the image signal.
COPYRIGHT: (C)1977,JPO&Japio
JP50075565A 1975-06-23 1975-06-23 Image signal binarization conversion circuit Expired JPS5948589B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50075565A JPS5948589B2 (en) 1975-06-23 1975-06-23 Image signal binarization conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50075565A JPS5948589B2 (en) 1975-06-23 1975-06-23 Image signal binarization conversion circuit

Publications (2)

Publication Number Publication Date
JPS5210613A true JPS5210613A (en) 1977-01-27
JPS5948589B2 JPS5948589B2 (en) 1984-11-27

Family

ID=13579820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50075565A Expired JPS5948589B2 (en) 1975-06-23 1975-06-23 Image signal binarization conversion circuit

Country Status (1)

Country Link
JP (1) JPS5948589B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518886U (en) * 1978-07-20 1980-02-06
JPS58146179A (en) * 1982-02-24 1983-08-31 Nec Corp Binarizing circuit of facsimile signal
JPS6094577A (en) * 1983-10-28 1985-05-27 Tokyo Keiki Co Ltd Digitizing device of picture signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065163A (en) * 1973-09-12 1975-06-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065163A (en) * 1973-09-12 1975-06-02

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518886U (en) * 1978-07-20 1980-02-06
JPS5926690Y2 (en) * 1978-07-20 1984-08-02 三洋電機株式会社 Image signal binarization circuit
JPS58146179A (en) * 1982-02-24 1983-08-31 Nec Corp Binarizing circuit of facsimile signal
JPH0153542B2 (en) * 1982-02-24 1989-11-14 Nippon Electric Co
JPS6094577A (en) * 1983-10-28 1985-05-27 Tokyo Keiki Co Ltd Digitizing device of picture signal

Also Published As

Publication number Publication date
JPS5948589B2 (en) 1984-11-27

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