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JPS52127021A - Method of determining threshold value of picture signal - Google Patents

Method of determining threshold value of picture signal

Info

Publication number
JPS52127021A
JPS52127021A JP4382076A JP4382076A JPS52127021A JP S52127021 A JPS52127021 A JP S52127021A JP 4382076 A JP4382076 A JP 4382076A JP 4382076 A JP4382076 A JP 4382076A JP S52127021 A JPS52127021 A JP S52127021A
Authority
JP
Japan
Prior art keywords
threshold value
picture signal
determining threshold
determining
picture
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
JP4382076A
Other languages
Japanese (ja)
Inventor
Kenichi Taki
Mamoru Kawahara
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.)
Kanadevia Corp
Original Assignee
Hitachi Shipbuilding and Engineering 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 Hitachi Shipbuilding and Engineering Co Ltd filed Critical Hitachi Shipbuilding and Engineering Co Ltd
Priority to JP4382076A priority Critical patent/JPS52127021A/en
Publication of JPS52127021A publication Critical patent/JPS52127021A/en
Pending legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Closed-Circuit Television Systems (AREA)
JP4382076A 1976-04-16 1976-04-16 Method of determining threshold value of picture signal Pending JPS52127021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4382076A JPS52127021A (en) 1976-04-16 1976-04-16 Method of determining threshold value of picture signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4382076A JPS52127021A (en) 1976-04-16 1976-04-16 Method of determining threshold value of picture signal

Publications (1)

Publication Number Publication Date
JPS52127021A true JPS52127021A (en) 1977-10-25

Family

ID=12674372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4382076A Pending JPS52127021A (en) 1976-04-16 1976-04-16 Method of determining threshold value of picture signal

Country Status (1)

Country Link
JP (1) JPS52127021A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141280U (en) * 1986-02-28 1987-09-05
JPS63142791A (en) * 1986-12-04 1988-06-15 Toyota Motor Corp Image binarization processing device
JPH03179882A (en) * 1990-09-28 1991-08-05 Hamamatsu Photonics Kk Image pickup device picking up weak video image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878323A (en) * 1968-05-01 1975-04-15 Image Analysing Computers Ltd Detecting devices for image analysis systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878323A (en) * 1968-05-01 1975-04-15 Image Analysing Computers Ltd Detecting devices for image analysis systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141280U (en) * 1986-02-28 1987-09-05
JPS63142791A (en) * 1986-12-04 1988-06-15 Toyota Motor Corp Image binarization processing device
JPH03179882A (en) * 1990-09-28 1991-08-05 Hamamatsu Photonics Kk Image pickup device picking up weak video image

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