JPS52130242A - Slice level selecting system - Google Patents

Slice level selecting system

Info

Publication number
JPS52130242A
JPS52130242A JP4657776A JP4657776A JPS52130242A JP S52130242 A JPS52130242 A JP S52130242A JP 4657776 A JP4657776 A JP 4657776A JP 4657776 A JP4657776 A JP 4657776A JP S52130242 A JPS52130242 A JP S52130242A
Authority
JP
Japan
Prior art keywords
slice level
selecting system
level selecting
letters
discrimination
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
JP4657776A
Other languages
Japanese (ja)
Other versions
JPS5939791B2 (en
Inventor
Tsugio Takahashi
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP51046577A priority Critical patent/JPS5939791B2/en
Publication of JPS52130242A publication Critical patent/JPS52130242A/en
Publication of JPS5939791B2 publication Critical patent/JPS5939791B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Character Discrimination (AREA)

Abstract

PURPOSE: To enable the discrimination depending on the dark and shade of letters and having high average discriminating speed for the letters, by determining the order of selection of the threshold value quantizing the next letter based on the results of statistics which invariably has been discriminated, while keeping the letter discrimination.
COPYRIGHT: (C)1977,JPO&Japio
JP51046577A 1976-04-26 1976-04-26 optical character reader Expired JPS5939791B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51046577A JPS5939791B2 (en) 1976-04-26 1976-04-26 optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51046577A JPS5939791B2 (en) 1976-04-26 1976-04-26 optical character reader

Publications (2)

Publication Number Publication Date
JPS52130242A true JPS52130242A (en) 1977-11-01
JPS5939791B2 JPS5939791B2 (en) 1984-09-26

Family

ID=12751145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51046577A Expired JPS5939791B2 (en) 1976-04-26 1976-04-26 optical character reader

Country Status (1)

Country Link
JP (1) JPS5939791B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211669A (en) * 1981-06-23 1982-12-25 Tootaa Technol:Kk Bar code reading method
JPS5870380A (en) * 1981-10-21 1983-04-26 Hitachi Ltd Recognizing device of object
JPS6146647U (en) * 1984-08-31 1986-03-28 日本電気精器株式会社 barcode reader
JPS6180373A (en) * 1984-09-27 1986-04-23 Hokuyo Automatic Co Recording method of character

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211669A (en) * 1981-06-23 1982-12-25 Tootaa Technol:Kk Bar code reading method
JPS5870380A (en) * 1981-10-21 1983-04-26 Hitachi Ltd Recognizing device of object
JPH0230064B2 (en) * 1981-10-21 1990-07-04 Hitachi Ltd
JPS6146647U (en) * 1984-08-31 1986-03-28 日本電気精器株式会社 barcode reader
JPS6180373A (en) * 1984-09-27 1986-04-23 Hokuyo Automatic Co Recording method of character

Also Published As

Publication number Publication date
JPS5939791B2 (en) 1984-09-26

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