JPS5592979A - Graphic processing system - Google Patents
Graphic processing systemInfo
- Publication number
- JPS5592979A JPS5592979A JP15954978A JP15954978A JPS5592979A JP S5592979 A JPS5592979 A JP S5592979A JP 15954978 A JP15954978 A JP 15954978A JP 15954978 A JP15954978 A JP 15954978A JP S5592979 A JPS5592979 A JP S5592979A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- local
- processed
- line
- intersections
- 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 make it possible to compress information without destroying global features of a pattern to be processed by deciding upon global inflection points by obtaining intersections specially in a thin-line pattern as main features from the pattern to be processed.
CONSTITUTION: An input pattern is made into thin lines by a thin-line processing part. Next, a local intersection extraction processing part extracts local intersections from the thin-line-processed pattern. Then, stroke trace processing part performs the stroke tracing starting from a local intersection and extracts local inflection points relating the strokes, thereby determining the length of each line element. Then, a global feature extraction processing part discriminates unneeded local inflection points by comparing with a certain threshold on the basis of length information of line elements and determines global intersections, thereby compressing information. Next, all strokes between local intersections are similarly processed to obtain processed pattern 7'.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53159549A JPS5829545B2 (en) | 1978-12-21 | 1978-12-21 | Graphic processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53159549A JPS5829545B2 (en) | 1978-12-21 | 1978-12-21 | Graphic processing system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592979A true JPS5592979A (en) | 1980-07-14 |
JPS5829545B2 JPS5829545B2 (en) | 1983-06-23 |
Family
ID=15696164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53159549A Expired JPS5829545B2 (en) | 1978-12-21 | 1978-12-21 | Graphic processing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829545B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59161182A (en) * | 1983-03-04 | 1984-09-11 | Toshiba Corp | Linear graphic processing device |
-
1978
- 1978-12-21 JP JP53159549A patent/JPS5829545B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59161182A (en) * | 1983-03-04 | 1984-09-11 | Toshiba Corp | Linear graphic processing device |
Also Published As
Publication number | Publication date |
---|---|
JPS5829545B2 (en) | 1983-06-23 |
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