CH534395A - Method and device for reducing or eliminating the influence of differences in contrast and background brightness on the classification of characters in raster processes - Google Patents

Method and device for reducing or eliminating the influence of differences in contrast and background brightness on the classification of characters in raster processes

Info

Publication number
CH534395A
CH534395A CH1203071A CH1203071A CH534395A CH 534395 A CH534395 A CH 534395A CH 1203071 A CH1203071 A CH 1203071A CH 1203071 A CH1203071 A CH 1203071A CH 534395 A CH534395 A CH 534395A
Authority
CH
Switzerland
Prior art keywords
characters
classification
eliminating
differences
contrast
Prior art date
Application number
CH1203071A
Other languages
German (de)
Inventor
Klemt Arthur
Original Assignee
Klemt Kg Arthur
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 Kg Arthur filed Critical Klemt Kg Arthur
Publication of CH534395A publication Critical patent/CH534395A/en

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)
CH1203071A 1970-09-10 1971-08-17 Method and device for reducing or eliminating the influence of differences in contrast and background brightness on the classification of characters in raster processes CH534395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702044795 DE2044795B2 (en) 1970-09-10 1970-09-10 PROCESS FOR REDUCING OR ELIMINATING THE INFLUENCE OF DIFFERENCES IN CONTRAST AND BACKGROUND BRIGHTNESS ON THE CLASSIFICATION OF CHARACTERS DURING SCREEN DRIVING AND DEVICE FOR PERFORMING THE PROCESS

Publications (1)

Publication Number Publication Date
CH534395A true CH534395A (en) 1973-02-28

Family

ID=5782071

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1203071A CH534395A (en) 1970-09-10 1971-08-17 Method and device for reducing or eliminating the influence of differences in contrast and background brightness on the classification of characters in raster processes

Country Status (8)

Country Link
CA (1) CA941969A (en)
CH (1) CH534395A (en)
DD (1) DD95476A1 (en)
DE (1) DE2044795B2 (en)
FR (1) FR2107322A5 (en)
GB (1) GB1345054A (en)
NL (1) NL7112496A (en)
SE (1) SE385160B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7604987A (en) * 1976-05-11 1977-11-15 Bell Telephone Mfg SIGNAL VALUATION EQUIPMENT.
GB2098774B (en) * 1979-07-20 1984-02-01 Sumitomo Electric Industries Binary coding circuit

Also Published As

Publication number Publication date
CA941969A (en) 1974-02-12
DD95476A1 (en) 1973-02-12
DE2044795B2 (en) 1972-02-03
GB1345054A (en) 1974-01-30
NL7112496A (en) 1972-03-14
SE385160B (en) 1976-06-08
DE2044795A1 (en) 1972-02-03
FR2107322A5 (en) 1972-05-05

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Legal Events

Date Code Title Description
PL Patent ceased