JPS647174A - Background correction method - Google Patents
Background correction methodInfo
- Publication number
- JPS647174A JPS647174A JP62162043A JP16204387A JPS647174A JP S647174 A JPS647174 A JP S647174A JP 62162043 A JP62162043 A JP 62162043A JP 16204387 A JP16204387 A JP 16204387A JP S647174 A JPS647174 A JP S647174A
- Authority
- JP
- Japan
- Prior art keywords
- background
- picture
- replacing
- processing
- density
- 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
- 238000003705 background correction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Landscapes
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To appropriately correct a background by immediately replacing a background picture by a processing picture when a density change between the background picture and the present processing picture is small, and gradually replacing the background when the density change is large. CONSTITUTION:Picture element density values Y(I,J) and X(I,J) are obtained with respect to the coordinate (I,J) of the background picture and the coordinate (I,J) of the present processing picture. If the absolute value of the difference Y(I,J)-X(I,J) is not larger than a minute density value epsilon, a background replacing processing is immediately executed, and if the absolute value is larger than the value epsilon, the background replacing processing is gradually executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162043A JPS647174A (en) | 1987-06-29 | 1987-06-29 | Background correction method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162043A JPS647174A (en) | 1987-06-29 | 1987-06-29 | Background correction method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647174A true JPS647174A (en) | 1989-01-11 |
Family
ID=15747003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62162043A Pending JPS647174A (en) | 1987-06-29 | 1987-06-29 | Background correction method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647174A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146170A (en) * | 1989-06-14 | 1992-09-08 | Hitachi, Ltd. | Method and apparatus for locating an abnormality in a gas-insulated electric device |
EP0686943A2 (en) | 1994-06-08 | 1995-12-13 | Matsushita Electric Industrial Co., Ltd. | Differential motion detection method using background image |
EP0782101A3 (en) * | 1995-12-28 | 1998-03-04 | Sony Corporation | Motion detection apparatus and methods |
US8270701B2 (en) | 2010-01-08 | 2012-09-18 | 3M Innovative Properties Company | Optical web-based defect detection using intrasensor uniformity correction |
-
1987
- 1987-06-29 JP JP62162043A patent/JPS647174A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146170A (en) * | 1989-06-14 | 1992-09-08 | Hitachi, Ltd. | Method and apparatus for locating an abnormality in a gas-insulated electric device |
EP0686943A2 (en) | 1994-06-08 | 1995-12-13 | Matsushita Electric Industrial Co., Ltd. | Differential motion detection method using background image |
EP0686943A3 (en) * | 1994-06-08 | 1996-03-27 | Matsushita Electric Ind Co Ltd | Differential motion detection method using background image |
US5606376A (en) * | 1994-06-08 | 1997-02-25 | Matsushita Electric Industrial Co., Ltd. | Differential motion detection method using background image |
EP0782101A3 (en) * | 1995-12-28 | 1998-03-04 | Sony Corporation | Motion detection apparatus and methods |
US8270701B2 (en) | 2010-01-08 | 2012-09-18 | 3M Innovative Properties Company | Optical web-based defect detection using intrasensor uniformity correction |
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