JPS6464080A - Method and device for extracting contour of input picture - Google Patents
Method and device for extracting contour of input pictureInfo
- Publication number
- JPS6464080A JPS6464080A JP62220365A JP22036587A JPS6464080A JP S6464080 A JPS6464080 A JP S6464080A JP 62220365 A JP62220365 A JP 62220365A JP 22036587 A JP22036587 A JP 22036587A JP S6464080 A JPS6464080 A JP S6464080A
- Authority
- JP
- Japan
- Prior art keywords
- contour
- performs
- threshold level
- picture
- line width
- 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.)
- Pending
Links
Landscapes
- Image Analysis (AREA)
Abstract
PURPOSE:To realize extraction of the contour having its line width '1' by setting a picture element having the output of a contour extraction acting element set at a certain threshold level or higher at '1' and obtaining a picture containing the picture elements less than said threshold level set at zero. CONSTITUTION:A contour extraction after-processing part 27 performs the after-processing after the contour of an input picture is extracted. In this case, a threshold value processing part 24 performs the binarizing process where the picture elements larger than a prescribed threshold level are set at '1' with those less than the prescribed threshold level set at zero respectively. Furthermore a contour extracting part 23 performs a maximum point extracting process where the local maximum point of the extracted contour is set at '1' with other points set at zero respectively. The value of the maximum point has the line width '1' and contains many points other than the contour. A mask processing part 26 performs a masking process to secure an AND between both parts 24 and 25 to extract only the contour having the line width '1'.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220365A JPS6464080A (en) | 1987-09-04 | 1987-09-04 | Method and device for extracting contour of input picture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62220365A JPS6464080A (en) | 1987-09-04 | 1987-09-04 | Method and device for extracting contour of input picture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464080A true JPS6464080A (en) | 1989-03-09 |
Family
ID=16749993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62220365A Pending JPS6464080A (en) | 1987-09-04 | 1987-09-04 | Method and device for extracting contour of input picture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464080A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0435279A (en) * | 1990-05-25 | 1992-02-06 | Sharp Corp | Chromakey processor |
JP2012073953A (en) * | 2010-09-29 | 2012-04-12 | Olympus Corp | Image processing device, image processing method, and image processing program |
-
1987
- 1987-09-04 JP JP62220365A patent/JPS6464080A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0435279A (en) * | 1990-05-25 | 1992-02-06 | Sharp Corp | Chromakey processor |
JP2012073953A (en) * | 2010-09-29 | 2012-04-12 | Olympus Corp | Image processing device, image processing method, and image processing program |
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