JPH0324827B2 - - Google Patents
Info
- Publication number
- JPH0324827B2 JPH0324827B2 JP57107041A JP10704182A JPH0324827B2 JP H0324827 B2 JPH0324827 B2 JP H0324827B2 JP 57107041 A JP57107041 A JP 57107041A JP 10704182 A JP10704182 A JP 10704182A JP H0324827 B2 JPH0324827 B2 JP H0324827B2
- Authority
- JP
- Japan
- Prior art keywords
- correction coefficient
- shading correction
- shading
- pixel
- output
- 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.)
- Expired - Lifetime
Links
- 238000003705 background correction Methods 0.000 claims description 53
- 230000002159 abnormal effect Effects 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 238000003860 storage Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 15
- 238000005070 sampling Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 8
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 5
- 238000001444 catalytic combustion detection Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Input (AREA)
- Picture Signal Circuits (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57107041A JPS58223963A (ja) | 1982-06-22 | 1982-06-22 | シエ−デイング補正装置 |
| US06/406,078 US4524388A (en) | 1981-08-11 | 1982-08-06 | Shading correction device |
| DE19823229586 DE3229586C3 (de) | 1981-08-11 | 1982-08-09 | Abschattungs-ausgleichvorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57107041A JPS58223963A (ja) | 1982-06-22 | 1982-06-22 | シエ−デイング補正装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58223963A JPS58223963A (ja) | 1983-12-26 |
| JPH0324827B2 true JPH0324827B2 (ko) | 1991-04-04 |
Family
ID=14449015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57107041A Granted JPS58223963A (ja) | 1981-08-11 | 1982-06-22 | シエ−デイング補正装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58223963A (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02202772A (ja) * | 1989-02-01 | 1990-08-10 | Nec Corp | 画信号補正方式 |
| JP2893078B2 (ja) * | 1990-12-06 | 1999-05-17 | オムロン株式会社 | シェーディング補正方法およびその装置 |
| JPH0522594A (ja) * | 1991-03-14 | 1993-01-29 | Murata Mach Ltd | シエーデイング補正装置 |
-
1982
- 1982-06-22 JP JP57107041A patent/JPS58223963A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58223963A (ja) | 1983-12-26 |
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