JPS6450179A - Picture data fetching and processing device - Google Patents
Picture data fetching and processing deviceInfo
- Publication number
- JPS6450179A JPS6450179A JP62205245A JP20524587A JPS6450179A JP S6450179 A JPS6450179 A JP S6450179A JP 62205245 A JP62205245 A JP 62205245A JP 20524587 A JP20524587 A JP 20524587A JP S6450179 A JPS6450179 A JP S6450179A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- picture
- boundary
- inflection point
- counter
- 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 Processing (AREA)
- Image Analysis (AREA)
Abstract
PURPOSE:To detect the position of a straight-line boundary at high speed by a simple constitution including a counter and a memory by using that a luminance changes largely between neighboring horizontal synchronizing signals and a picture inflection point appears at the time of picture data in which the right and left luminance of a picture changes by the straight-line boundary. CONSTITUTION:When a starting signal St is added, a memory control circuit 4 clears the contents of the whole address of a memory 3 up to 0 and the circuit is made into an operating condition by the arrival of a vertical synchronizing signal Vs after that. After a counter 1 is reset by a horizontal synchronizing signal Hs, it counts the number of picture clock CK and makes a latch 2 latch it, now, when a boundary 5 in a up-down direction exists and an inflection point 6 exists in one horizontal scanning period between the neighboring horizontal synchronizing signal Hs, and edge signal Eg to show the inflection point 6 appears to a counter calculating value N1 and therefore, the circuit 4 adds 1 to the address N1 of the memory 3 and define the boundary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62205245A JPS6450179A (en) | 1987-08-20 | 1987-08-20 | Picture data fetching and processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62205245A JPS6450179A (en) | 1987-08-20 | 1987-08-20 | Picture data fetching and processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6450179A true JPS6450179A (en) | 1989-02-27 |
Family
ID=16503794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62205245A Pending JPS6450179A (en) | 1987-08-20 | 1987-08-20 | Picture data fetching and processing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6450179A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134960A (en) * | 1989-05-31 | 1992-08-04 | Canon Kabushiki Kaisha | Toner seal for developing unit in process cartridge |
| JP2016024769A (en) * | 2014-07-24 | 2016-02-08 | 滝川工業株式会社 | Management method of steel material and management system of steel material |
| CN107422723A (en) * | 2010-12-30 | 2017-12-01 | 美国iRobot公司 | Cover robot navigation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189084A (en) * | 1984-03-07 | 1985-09-26 | Fujitsu Ltd | Character area extracting circuit |
| JPS61231684A (en) * | 1985-04-05 | 1986-10-15 | Sankyo Seiki Mfg Co Ltd | Picture processing device |
-
1987
- 1987-08-20 JP JP62205245A patent/JPS6450179A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189084A (en) * | 1984-03-07 | 1985-09-26 | Fujitsu Ltd | Character area extracting circuit |
| JPS61231684A (en) * | 1985-04-05 | 1986-10-15 | Sankyo Seiki Mfg Co Ltd | Picture processing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134960A (en) * | 1989-05-31 | 1992-08-04 | Canon Kabushiki Kaisha | Toner seal for developing unit in process cartridge |
| CN107422723A (en) * | 2010-12-30 | 2017-12-01 | 美国iRobot公司 | Cover robot navigation |
| US11157015B2 (en) | 2010-12-30 | 2021-10-26 | Irobot Corporation | Coverage robot navigating |
| JP2016024769A (en) * | 2014-07-24 | 2016-02-08 | 滝川工業株式会社 | Management method of steel material and management system of steel material |
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