CA2002544A1 - Image skeletonization method - Google Patents
Image skeletonization methodInfo
- Publication number
- CA2002544A1 CA2002544A1 CA2002544A CA2002544A CA2002544A1 CA 2002544 A1 CA2002544 A1 CA 2002544A1 CA 2002544 A CA2002544 A CA 2002544A CA 2002544 A CA2002544 A CA 2002544A CA 2002544 A1 CA2002544 A1 CA 2002544A1
- Authority
- CA
- Canada
- Prior art keywords
- pixels
- template
- templates
- image
- skeletonization method
- 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
Classifications
-
- 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
- G06V30/16—Image preprocessing
- G06V30/168—Smoothing or thinning of the pattern; Skeletonisation
-
- 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)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Character Input (AREA)
- Image Processing (AREA)
- Character Discrimination (AREA)
Abstract
-A method for improved thinning or skeletonizing handwritten characters or other variable-line-width images. The method scans a template set over the image to be thinned. Each template has a specific arrangement of dark and light pixels. At least one of those templates includes either more than three pixels per row or more than three rows of pixels. An odd number is good choice. Moreover, the templatesare chosen so that each template can unconditionally delete image pixels withoutconsideration of the effect of such deletions on the behavior of the other templates.
Thus the templates are independent of each other.
Thus the templates are independent of each other.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US288,338 | 1981-07-30 | ||
US28833888A | 1988-12-20 | 1988-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2002544A1 true CA2002544A1 (en) | 1990-06-20 |
CA2002544C CA2002544C (en) | 1996-07-16 |
Family
ID=23106677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002002544A Expired - Fee Related CA2002544C (en) | 1988-12-20 | 1989-11-08 | Image skeletonization method |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH02219189A (en) |
CA (1) | CA2002544C (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5615032A (en) * | 1979-07-16 | 1981-02-13 | Mitsubishi Electric Corp | Semiconductor device and manufacture thereof |
JPS58169681A (en) * | 1982-03-31 | 1983-10-06 | Fujitsu Ltd | Picture processing circuit |
JPS62266678A (en) * | 1986-05-14 | 1987-11-19 | Sony Corp | Image processor |
-
1989
- 1989-11-08 CA CA002002544A patent/CA2002544C/en not_active Expired - Fee Related
- 1989-12-15 JP JP1324186A patent/JPH02219189A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH02219189A (en) | 1990-08-31 |
CA2002544C (en) | 1996-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |