CA941969A - Character recognition contrast level control - Google Patents

Character recognition contrast level control

Info

Publication number
CA941969A
CA941969A CA122,480A CA122480A CA941969A CA 941969 A CA941969 A CA 941969A CA 122480 A CA122480 A CA 122480A CA 941969 A CA941969 A CA 941969A
Authority
CA
Canada
Prior art keywords
character recognition
level control
contrast level
recognition contrast
character
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.)
Expired
Application number
CA122,480A
Other languages
English (en)
Other versions
CA122480S (en
Inventor
Arthur Klemt
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.)
KLEMT (ARTHUR) KG
Original Assignee
KLEMT (ARTHUR) KG
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 KLEMT (ARTHUR) KG filed Critical KLEMT (ARTHUR) KG
Application granted granted Critical
Publication of CA941969A publication Critical patent/CA941969A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
CA122,480A 1970-09-10 1971-09-09 Character recognition contrast level control Expired CA941969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702044795 DE2044795B2 (de) 1970-09-10 1970-09-10 Verfahren zur verringerung oder beseitigung des einflusses von unterschieden des kontrastes und der untergrundhelligkeit auf die klassifizierung von schriftzeichen bei rasterver fahren und vorrichtung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
CA941969A true CA941969A (en) 1974-02-12

Family

ID=5782071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA122,480A Expired CA941969A (en) 1970-09-10 1971-09-09 Character recognition contrast level control

Country Status (8)

Country Link
CA (1) CA941969A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH534395A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DD (1) DD95476A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2044795B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2107322A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1345054A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7112496A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE385160B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7604987A (nl) * 1976-05-11 1977-11-15 Bell Telephone Mfg Signaalwaarderingsapparatuur.
GB2054927B (en) * 1979-07-20 1984-01-11 Sumitomo Electric Industries Binary coding circuit

Also Published As

Publication number Publication date
SE385160B (sv) 1976-06-08
DD95476A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-02-12
DE2044795A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-02-03
GB1345054A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-01-30
DE2044795B2 (de) 1972-02-03
CH534395A (de) 1973-02-28
NL7112496A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-03-14
FR2107322A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-05-05

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