JPS57137971A - Picture area extracting method - Google Patents
Picture area extracting methodInfo
- Publication number
- JPS57137971A JPS57137971A JP56023940A JP2394081A JPS57137971A JP S57137971 A JPS57137971 A JP S57137971A JP 56023940 A JP56023940 A JP 56023940A JP 2394081 A JP2394081 A JP 2394081A JP S57137971 A JPS57137971 A JP S57137971A
- Authority
- JP
- Japan
- Prior art keywords
- picture element
- coupled
- processing
- picture
- memory
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
- G06V10/457—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by analysing connectivity, e.g. edge linking, connected component analysis or slices
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)
Abstract
PURPOSE:To extract a picture area containing one or more coupled picture element areas, by coupling an adjacent black picture element of a binary coded picture, and unifying these respective coupled picture element areas to a larger area. CONSTITUTION:A document is scanned by a scanner 100, and density of a picture element is read. A picture element density signal outputted from the scanner is binary coded by a quantizer 102, and is accumulated in a buffer 104 temporarily. A processor 106 executes the coupling processing of a black picture element as to a binary picture data in the buffer, and derives a coordinate data of the extracted coupled picture element area in a memory 110. The processor executes the unifying processing of the coupled picture element areas derives in the memory 110, and extracts a character line. A coordinate data of each extracted character line is outputted to the outside or is saved in the memory 110 temporarily. The picture element coupling processing and the unifying processing of the coupled picture element areas are executed by interlocking a maximum/minimum deciding circuit 108 to the processor 106 in order to raise the processing efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56023940A JPS57137971A (en) | 1981-02-20 | 1981-02-20 | Picture area extracting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56023940A JPS57137971A (en) | 1981-02-20 | 1981-02-20 | Picture area extracting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57137971A true JPS57137971A (en) | 1982-08-25 |
Family
ID=12124522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56023940A Pending JPS57137971A (en) | 1981-02-20 | 1981-02-20 | Picture area extracting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57137971A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60210069A (en) * | 1984-04-02 | 1985-10-22 | Ricoh Co Ltd | Document information coding method |
| US5040133A (en) * | 1990-01-12 | 1991-08-13 | Hughes Aircraft Company | Adaptive clusterer |
| JP2015215889A (en) * | 2014-05-07 | 2015-12-03 | 金舷國際文創事業有限公司 | Reflow type electronic book creation method and web site system |
-
1981
- 1981-02-20 JP JP56023940A patent/JPS57137971A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60210069A (en) * | 1984-04-02 | 1985-10-22 | Ricoh Co Ltd | Document information coding method |
| US5040133A (en) * | 1990-01-12 | 1991-08-13 | Hughes Aircraft Company | Adaptive clusterer |
| JP2015215889A (en) * | 2014-05-07 | 2015-12-03 | 金舷國際文創事業有限公司 | Reflow type electronic book creation method and web site system |
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