JPS55159281A - Pick up system for characteristics of curve - Google Patents

Pick up system for characteristics of curve

Info

Publication number
JPS55159281A
JPS55159281A JP6778679A JP6778679A JPS55159281A JP S55159281 A JPS55159281 A JP S55159281A JP 6778679 A JP6778679 A JP 6778679A JP 6778679 A JP6778679 A JP 6778679A JP S55159281 A JPS55159281 A JP S55159281A
Authority
JP
Japan
Prior art keywords
line
curve
circuit
character
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.)
Granted
Application number
JP6778679A
Other languages
Japanese (ja)
Other versions
JPS5816501B2 (en
Inventor
Toru Kato
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP54067786A priority Critical patent/JPS5816501B2/en
Publication of JPS55159281A publication Critical patent/JPS55159281A/en
Publication of JPS5816501B2 publication Critical patent/JPS5816501B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Character Discrimination (AREA)

Abstract

PURPOSE: To enable to discriminate the character easily by detecting the characteristics of a curve. by detecting that the straight line part of an input character is a straight line, or a curve having left or right curvature, from the difference of each X coordinate of the center point of picked up character linear part and picture middle point.
CONSTITUTION: Picture information binarized white and black is stored in the picture memory 2, and when the control circuit 5 designates the area and the detection of line is instructed to the line detection circuit 2, the circuit 2 detects the line tying the selected two points on the profile line of the linear part of the input character, e.g., PS, PE. Based on the line PS, PE detected, the middle point detection circuit 3 obtains the X coordinate of the center point PC, the picture middle point detection circuit 4 obtains the picture middle point PD, and the comparison circuit obtains the difference of X coordinate between the points PC and PD, and the judgement circuit 7 judges the line whether it is a straight line or a curve having its curvature at left or right. Thus, the characteristics of the curve picked up is detected and the character can easily be discriminated.
COPYRIGHT: (C)1980,JPO&Japio
JP54067786A 1979-05-31 1979-05-31 Curve feature extraction method Expired JPS5816501B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54067786A JPS5816501B2 (en) 1979-05-31 1979-05-31 Curve feature extraction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54067786A JPS5816501B2 (en) 1979-05-31 1979-05-31 Curve feature extraction method

Publications (2)

Publication Number Publication Date
JPS55159281A true JPS55159281A (en) 1980-12-11
JPS5816501B2 JPS5816501B2 (en) 1983-03-31

Family

ID=13354980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54067786A Expired JPS5816501B2 (en) 1979-05-31 1979-05-31 Curve feature extraction method

Country Status (1)

Country Link
JP (1) JPS5816501B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132337A (en) * 1974-07-16 1976-03-18 Cables De Lyon Geoffroy Delore
JPS534774A (en) * 1976-07-02 1978-01-17 Nitto Boseki Co Ltd Apparatus for regeneration of absorption solution in wet hydrogen sulfide-removal unit
JPS5341136A (en) * 1976-09-28 1978-04-14 Agency Of Ind Science & Technol Pattern reading system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132337A (en) * 1974-07-16 1976-03-18 Cables De Lyon Geoffroy Delore
JPS534774A (en) * 1976-07-02 1978-01-17 Nitto Boseki Co Ltd Apparatus for regeneration of absorption solution in wet hydrogen sulfide-removal unit
JPS5341136A (en) * 1976-09-28 1978-04-14 Agency Of Ind Science & Technol Pattern reading system

Also Published As

Publication number Publication date
JPS5816501B2 (en) 1983-03-31

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