GB2183429B - Method of converting delineative pattern - Google Patents

Method of converting delineative pattern

Info

Publication number
GB2183429B
GB2183429B GB8623689A GB8623689A GB2183429B GB 2183429 B GB2183429 B GB 2183429B GB 8623689 A GB8623689 A GB 8623689A GB 8623689 A GB8623689 A GB 8623689A GB 2183429 B GB2183429 B GB 2183429B
Authority
GB
United Kingdom
Prior art keywords
delineative
converting
pattern
delineative pattern
converting delineative
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
GB8623689A
Other versions
GB2183429A (en
GB8623689D0 (en
Inventor
Kunio Seto
Kensaku Tanaka
Yukari Taniguchi
Takahiro 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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of GB8623689D0 publication Critical patent/GB8623689D0/en
Publication of GB2183429A publication Critical patent/GB2183429A/en
Application granted granted Critical
Publication of GB2183429B publication Critical patent/GB2183429B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/20—Contour coding, e.g. using detection of edges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
    • G06V30/1823—Extraction of features or characteristics of the image by coding the contour of the pattern using vector-coding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)
  • Dot-Matrix Printers And Others (AREA)
GB8623689A 1985-10-07 1986-10-02 Method of converting delineative pattern Expired GB2183429B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60222937A JPS6282484A (en) 1985-10-07 1985-10-07 Method for converting linear graphic form

Publications (3)

Publication Number Publication Date
GB8623689D0 GB8623689D0 (en) 1986-11-05
GB2183429A GB2183429A (en) 1987-06-03
GB2183429B true GB2183429B (en) 1989-10-25

Family

ID=16790204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8623689A Expired GB2183429B (en) 1985-10-07 1986-10-02 Method of converting delineative pattern

Country Status (4)

Country Link
JP (1) JPS6282484A (en)
DE (1) DE3634024A1 (en)
FR (1) FR2588399B1 (en)
GB (1) GB2183429B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0823741B2 (en) * 1987-06-03 1996-03-06 株式会社日立製作所 How to process vector characters or graphics
JP2538631B2 (en) * 1988-01-29 1996-09-25 株式会社日立製作所 How to handle vector characters
JPH02158363A (en) * 1988-12-13 1990-06-18 Nec Off Syst Ltd Character generator
DE4042644C2 (en) * 1989-09-26 1999-04-01 Canon Kk Laser printing with variable density
JP2935510B2 (en) * 1989-09-26 1999-08-16 キヤノン株式会社 Output device and output method
JP2755789B2 (en) * 1990-06-11 1998-05-25 キヤノン株式会社 Character font memory and character pattern generator using the character font memory
GB9022229D0 (en) * 1990-10-12 1990-11-28 Nunney Stephen G Video waveform storing system
US5644366A (en) * 1992-01-29 1997-07-01 Canon Kabushiki Kaisha Image reproduction involving enlargement or reduction of extracted contour vector data for binary regions in images having both binary and halftone regions
EP0650287B1 (en) * 1993-10-26 2004-03-10 Canon Kabushiki Kaisha Image processing method and apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391392A (en) * 1965-10-18 1968-07-02 California Comp Products Inc Method and apparatus for pattern data processing
US4087788A (en) * 1977-01-14 1978-05-02 Ncr Canada Ltd - Ncr Canada Ltee Data compression system
US4199815A (en) * 1978-05-12 1980-04-22 Electra Corporation Typesetter character generating apparatus
US4633433A (en) * 1979-04-23 1986-12-30 International Business Machines Corporation Display system for displaying maps having two-dimensional roads
JPS58163078A (en) * 1982-03-24 1983-09-27 Toshiba Corp Line thinning processing system
JPS5922160A (en) * 1982-07-27 1984-02-04 Fujitsu Ltd Graph processing method
JPS5947666A (en) * 1982-09-13 1984-03-17 Dainippon Screen Mfg Co Ltd Data compressing method of binary picture
JPS5969787A (en) * 1982-10-15 1984-04-20 日本電気オフィスシステム株式会社 System of generating character signal or the like
JPS59123069A (en) * 1982-12-28 1984-07-16 Fujitsu Ltd Thickening system of vector segment
JPS59214970A (en) * 1983-05-20 1984-12-04 Ricoh Co Ltd Converting method of style of type

Also Published As

Publication number Publication date
FR2588399A1 (en) 1987-04-10
GB2183429A (en) 1987-06-03
FR2588399B1 (en) 1994-10-21
GB8623689D0 (en) 1986-11-05
JPS6282484A (en) 1987-04-15
DE3634024A1 (en) 1987-04-16
DE3634024C2 (en) 1990-01-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20061001