JPS6471289A - Luminance signal chrominance signal separation filter corresponding to picture correlation - Google Patents
Luminance signal chrominance signal separation filter corresponding to picture correlationInfo
- Publication number
- JPS6471289A JPS6471289A JP22882187A JP22882187A JPS6471289A JP S6471289 A JPS6471289 A JP S6471289A JP 22882187 A JP22882187 A JP 22882187A JP 22882187 A JP22882187 A JP 22882187A JP S6471289 A JPS6471289 A JP S6471289A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- chrominance signal
- horizontal
- correlation
- luminance
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To prevent the effect of leakage of a luminance and a chrominance signal to mutual channel in a region where a picture is subject to rapid change by using a luminance signal/chrominance signal separation filter depending on the correlation of pictures in vertical and horizontal directions in a composite color television signal. CONSTITUTION:A composite color television signal is sampled by an A/D converter 4. Outputs of the A/D converter 4 and one-line delay circuits 5a, 5b are inputted to a vortical direction chrominance signal extraction filter 6a, a horizontal direction chrominance signal extraction filter 6b and a horizontal/vertical direction chrominance signal extraction filter 6c. The outputs of the filters 6a-6c are given to a switch circuit 8 via compensation delay circuits 5c-5e. A picture correlation discrimination circuit 7 applies isolation point elimination to detect the correlation in horizontal and vertical directions aud gives the result to the switch circuit 8 as the control signal. The color signal is led out of the switch circuit 8 and a luminance signal is led from a subtraction circuit 9a receiving the chrominance signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22882187A JPS6471289A (en) | 1987-09-10 | 1987-09-10 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22882187A JPS6471289A (en) | 1987-09-10 | 1987-09-10 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6471289A true JPS6471289A (en) | 1989-03-16 |
Family
ID=16882388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22882187A Pending JPS6471289A (en) | 1987-09-10 | 1987-09-10 | Luminance signal chrominance signal separation filter corresponding to picture correlation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6471289A (en) |
-
1987
- 1987-09-10 JP JP22882187A patent/JPS6471289A/en active Pending
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