JPS5383515A - Quantization circuit for picture signal - Google Patents
Quantization circuit for picture signalInfo
- Publication number
- JPS5383515A JPS5383515A JP15935176A JP15935176A JPS5383515A JP S5383515 A JPS5383515 A JP S5383515A JP 15935176 A JP15935176 A JP 15935176A JP 15935176 A JP15935176 A JP 15935176A JP S5383515 A JPS5383515 A JP S5383515A
- Authority
- JP
- Japan
- Prior art keywords
- picture signal
- quantization circuit
- threshold level
- signal
- manuscript
- 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
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To secure a decision for a proper threshold level regardless of the size of the manuscript, by extracting the signal of the specified section of the picture signal and having a relative change of the threshold level.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15935176A JPS5383515A (en) | 1976-12-29 | 1976-12-29 | Quantization circuit for picture signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15935176A JPS5383515A (en) | 1976-12-29 | 1976-12-29 | Quantization circuit for picture signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5383515A true JPS5383515A (en) | 1978-07-24 |
Family
ID=15691939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15935176A Pending JPS5383515A (en) | 1976-12-29 | 1976-12-29 | Quantization circuit for picture signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5383515A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5484915A (en) * | 1977-12-20 | 1979-07-06 | Ricoh Co Ltd | Picture signal processor |
JPS5738064A (en) * | 1980-08-19 | 1982-03-02 | Matsushita Graphic Commun Syst Inc | Video reader |
-
1976
- 1976-12-29 JP JP15935176A patent/JPS5383515A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5484915A (en) * | 1977-12-20 | 1979-07-06 | Ricoh Co Ltd | Picture signal processor |
JPS6248429B2 (en) * | 1977-12-20 | 1987-10-14 | Ricoh Kk | |
JPS5738064A (en) * | 1980-08-19 | 1982-03-02 | Matsushita Graphic Commun Syst Inc | Video reader |
JPS6226630B2 (en) * | 1980-08-19 | 1987-06-10 | Matsushita Graphic Communic |
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