JPS6340072B2 - - Google Patents
Info
- Publication number
- JPS6340072B2 JPS6340072B2 JP57010684A JP1068482A JPS6340072B2 JP S6340072 B2 JPS6340072 B2 JP S6340072B2 JP 57010684 A JP57010684 A JP 57010684A JP 1068482 A JP1068482 A JP 1068482A JP S6340072 B2 JPS6340072 B2 JP S6340072B2
- Authority
- JP
- Japan
- Prior art keywords
- line
- image signal
- peak value
- output
- amplification degree
- 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
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1068482A JPS58127469A (ja) | 1982-01-25 | 1982-01-25 | 自動コントラスト補正回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1068482A JPS58127469A (ja) | 1982-01-25 | 1982-01-25 | 自動コントラスト補正回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58127469A JPS58127469A (ja) | 1983-07-29 |
JPS6340072B2 true JPS6340072B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-08-09 |
Family
ID=11757085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1068482A Granted JPS58127469A (ja) | 1982-01-25 | 1982-01-25 | 自動コントラスト補正回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58127469A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63208367A (ja) * | 1987-02-24 | 1988-08-29 | Matsushita Graphic Commun Syst Inc | 画像信号補正装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4133008A (en) * | 1977-03-14 | 1979-01-02 | Rapicom Inc. | Automatic illumination compensation circuit |
JPS565762A (en) * | 1979-06-28 | 1981-01-21 | Uchida Yoko:Kk | Automatic adjusting circuit for background density in stencil paper making machine |
JPS56111375A (en) * | 1980-02-07 | 1981-09-03 | Ricoh Co Ltd | Picture signal amplifying circuit |
JPS56157577A (en) * | 1980-05-09 | 1981-12-04 | Hitachi Ltd | Signal procession device |
JPS56157575A (en) * | 1980-05-09 | 1981-12-04 | Hitachi Ltd | Signal procession device |
-
1982
- 1982-01-25 JP JP1068482A patent/JPS58127469A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58127469A (ja) | 1983-07-29 |