JPS6468889A - Method for converting graphic form to vector - Google Patents
Method for converting graphic form to vectorInfo
- Publication number
- JPS6468889A JPS6468889A JP62226181A JP22618187A JPS6468889A JP S6468889 A JPS6468889 A JP S6468889A JP 62226181 A JP62226181 A JP 62226181A JP 22618187 A JP22618187 A JP 22618187A JP S6468889 A JPS6468889 A JP S6468889A
- Authority
- JP
- Japan
- Prior art keywords
- graphic form
- boundary image
- image elements
- code
- codes
- 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
Links
Landscapes
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
PURPOSE:To generate vector data, which can reproduce a graphic form of high quality, in a practical processing time by generating a series of codes in the tracing order of boundary image elements of the graphic form and selecting vector points based on continuous states of codes in respective parts of this code string. CONSTITUTION:It is noticed that the Freeman's chain code or a code equivalent to it reflects features, especially, the bending state of the contour of the graphic form, and the code string of a series of these codes is generated in the tracing order of boundary image elements of the graphic form, and vector points C1-C5 are selected from boundary image elements or nearby image elements on the basis of continuous states in respective parts of this code string. With respect to the Freeman's chain code, the right of an objective image element is set to '0' and '1'-'7' are successively set at intervals of 45 deg. counterclockwise, and the direction of the following boundary image element is given as the chain code to each boundary image element when boundary image elements of the graphic form are successively traced in one direction. Thus, vector data which can reproduce the graphic form of high quality is generated in a practical processing time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226181A JP2645373B2 (en) | 1987-09-09 | 1987-09-09 | How to vectorize shapes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62226181A JP2645373B2 (en) | 1987-09-09 | 1987-09-09 | How to vectorize shapes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6468889A true JPS6468889A (en) | 1989-03-14 |
JP2645373B2 JP2645373B2 (en) | 1997-08-25 |
Family
ID=16841155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62226181A Expired - Fee Related JP2645373B2 (en) | 1987-09-09 | 1987-09-09 | How to vectorize shapes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2645373B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5666440A (en) * | 1991-07-31 | 1997-09-09 | Victor Company Of Japan, Ltd. | Method and apparatus for extracting outline data from bi-level image data |
EP2541469A2 (en) | 2011-06-30 | 2013-01-02 | Fujitsu Limited | Image recognition device, image recognition method and image recognition program |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5927374A (en) * | 1982-08-06 | 1984-02-13 | Matsushita Electric Ind Co Ltd | Boundary line tracking circuit |
JPS61153785A (en) * | 1984-12-26 | 1986-07-12 | Ricoh Co Ltd | Vertex detecting method |
JPS62131382A (en) * | 1985-12-04 | 1987-06-13 | Dainippon Printing Co Ltd | Vector conversion system for binary picture |
-
1987
- 1987-09-09 JP JP62226181A patent/JP2645373B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5927374A (en) * | 1982-08-06 | 1984-02-13 | Matsushita Electric Ind Co Ltd | Boundary line tracking circuit |
JPS61153785A (en) * | 1984-12-26 | 1986-07-12 | Ricoh Co Ltd | Vertex detecting method |
JPS62131382A (en) * | 1985-12-04 | 1987-06-13 | Dainippon Printing Co Ltd | Vector conversion system for binary picture |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5666440A (en) * | 1991-07-31 | 1997-09-09 | Victor Company Of Japan, Ltd. | Method and apparatus for extracting outline data from bi-level image data |
EP2541469A2 (en) | 2011-06-30 | 2013-01-02 | Fujitsu Limited | Image recognition device, image recognition method and image recognition program |
US8824734B2 (en) | 2011-06-30 | 2014-09-02 | Fujitsu Limited | Device, method and recording to determine depressed portions of image regions using shortcut line analysis |
Also Published As
Publication number | Publication date |
---|---|
JP2645373B2 (en) | 1997-08-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0449265A3 (en) | Random number generator | |
DE3883834D1 (en) | Method and device for generating and reproducing two-dimensional graphic objects. | |
CA2045889A1 (en) | Method and apparatus for adaptive phong shading | |
GB9017600D0 (en) | An assembly and method for binary tree-searched vector quanisation data compression processing | |
DE68914045T2 (en) | Method for coding auxiliary data for the reconstruction of an undersampled electronic image. | |
ATE441251T1 (en) | METHOD AND SYSTEM FOR TRANSMITTING AND RECEIVING INFORMATION USING A CHAIN REACTION CODE | |
EP0130953A3 (en) | Method of securing simple codes | |
DE69106894D1 (en) | METHOD FOR REGULATING A GENERATOR. | |
DE3783315T2 (en) | DEVICE FOR SCANING AN OPTICAL CODE. | |
DE3750951D1 (en) | Code generation method for computers with limited instruction set. | |
DE59007399D1 (en) | METHOD FOR PRODUCING 1,4-BIS- (4-HYDROXYBENZOYL) -BENZOLE. | |
JPS6443238A (en) | Ultrasonic blood flow imaging apparatus | |
DE69333215D1 (en) | Training method and device for setting a neuron | |
JPS6468889A (en) | Method for converting graphic form to vector | |
DE69230520T2 (en) | Method and arrangement for generating sum information / rounding control signal | |
DE69112362T2 (en) | METHOD FOR CODING A MOTION FIELD WITH ADJUSTABLE PARAMETERS IN A MOVING IMAGE SEQUENCE. | |
DE3866404D1 (en) | METHOD FOR GENERATING A CHARACTER CODE. | |
DE3280230D1 (en) | METHOD FOR PRODUCING SENSITIVE POSITIVE ELECTRON BEAM RESISTS. | |
GB9626813D0 (en) | Method and apparatus for approximating a contour image of an object in a video signal | |
DE59007162D1 (en) | METHOD FOR PRODUCING 1,4-BIS- (4-HYDROXYBENZOYL) -BENZOLE. | |
JPS522223A (en) | Graph illustration system | |
Pritsker | Directions for modeling and simulation. | |
JPS5233204A (en) | Method of calculating distance from chord of rail by means of laser be am | |
DE68910016T2 (en) | Process for controlling auxiliary data rates for the reconstruction of undersampled electronic images. | |
ATA79778A (en) | METHOD FOR PRODUCING 9- (2,6-DIHALOGEN-BENZYL) -ADENINE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |