JPS6460064A - Noise reducer - Google Patents
Noise reducerInfo
- Publication number
- JPS6460064A JPS6460064A JP62215169A JP21516987A JPS6460064A JP S6460064 A JPS6460064 A JP S6460064A JP 62215169 A JP62215169 A JP 62215169A JP 21516987 A JP21516987 A JP 21516987A JP S6460064 A JPS6460064 A JP S6460064A
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- low level
- edge part
- high frequency
- signal
- 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
Abstract
PURPOSE:To remain the pulse characteristic of an edge waveform and to remove a high frequency noise, by removing a low level component out of a high frequency component except an edge part based on the edge part detecting signal of a video signal and subtracting this removed low level component signal from an original video signal. CONSTITUTION:The titled device is provided with a high-pass filter 2 to remove the high frequency component from the video signal, a control signal generating means 5 to detect the edge part of the video signal and to generate a control signal, low level component detecting means 3 and 8 to pass through the low level component of the high frequency component except the edge part of the video signal based on the control signal from the generating means 5 and a means 4 to subtract signals which are from the low level component detecting means 3 and 8, from the video signal and to execute and output. Thus, without losing the clearness of the edge part, the noise of the video signal can be reduced so that a reproducing image not to generate a smear can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215169A JPS6460064A (en) | 1987-08-31 | 1987-08-31 | Noise reducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62215169A JPS6460064A (en) | 1987-08-31 | 1987-08-31 | Noise reducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6460064A true JPS6460064A (en) | 1989-03-07 |
Family
ID=16667804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62215169A Pending JPS6460064A (en) | 1987-08-31 | 1987-08-31 | Noise reducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6460064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04176269A (en) * | 1990-11-09 | 1992-06-23 | Victor Co Of Japan Ltd | Noise reducing circuit for video signal |
-
1987
- 1987-08-31 JP JP62215169A patent/JPS6460064A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04176269A (en) * | 1990-11-09 | 1992-06-23 | Victor Co Of Japan Ltd | Noise reducing circuit for video signal |
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