JPS6410394A - Optical character reading device - Google Patents

Optical character reading device

Info

Publication number
JPS6410394A
JPS6410394A JP62165419A JP16541987A JPS6410394A JP S6410394 A JPS6410394 A JP S6410394A JP 62165419 A JP62165419 A JP 62165419A JP 16541987 A JP16541987 A JP 16541987A JP S6410394 A JPS6410394 A JP S6410394A
Authority
JP
Japan
Prior art keywords
value
adder
local area
data
comparator
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
JP62165419A
Other languages
Japanese (ja)
Other versions
JP2522310B2 (en
Inventor
Toshifumi Yamauchi
Yasuhiro Saito
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62165419A priority Critical patent/JP2522310B2/en
Publication of JPS6410394A publication Critical patent/JPS6410394A/en
Application granted granted Critical
Publication of JP2522310B2 publication Critical patent/JP2522310B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To detect a character image to have a faint part by selecting a threshold obtained in all scan areas and a threshold obtained in a local area and executing a binarization. CONSTITUTION:A value adding the maximum value and minimum value of a concentration value in all scan areas by an adder 5 is inputted to a selecting device 27. For the data of a distance converting value data memory 15 storing data in which the processing of a neighboring linking black point scanned by a distance converting circuit is executed and data storing the scanned data as they are, a similarity degree is obtained by a similarity operating circuit 30 in an address from a register 16 to divide a local area, the local area is obtained and outputted to a comparator 26. The sum of the maximum value and minimum value of the concentration in the obtained local area is given from an adder 18 to the selecting device 27. The selecting device 27, according to a compared result signal between the similarity degree from the circuit 30 and the prescribed similarity degree of a register 25 by the comparator 26, selects the concentration value from the adder 5 or the adder 18 and outputs it to a comparator 28 to a binarizing processing as the threshold of a binarizing level.
JP62165419A 1987-07-03 1987-07-03 Optical character reader Expired - Lifetime JP2522310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62165419A JP2522310B2 (en) 1987-07-03 1987-07-03 Optical character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62165419A JP2522310B2 (en) 1987-07-03 1987-07-03 Optical character reader

Publications (2)

Publication Number Publication Date
JPS6410394A true JPS6410394A (en) 1989-01-13
JP2522310B2 JP2522310B2 (en) 1996-08-07

Family

ID=15812064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62165419A Expired - Lifetime JP2522310B2 (en) 1987-07-03 1987-07-03 Optical character reader

Country Status (1)

Country Link
JP (1) JP2522310B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325908A (en) * 1992-01-17 1994-07-05 Toyota Jidosha Kabushiki Kaisha Hydraulically operated casting machine for producing a formed product, having mold closing and clamping cylinders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325908A (en) * 1992-01-17 1994-07-05 Toyota Jidosha Kabushiki Kaisha Hydraulically operated casting machine for producing a formed product, having mold closing and clamping cylinders

Also Published As

Publication number Publication date
JP2522310B2 (en) 1996-08-07

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