JPS6448589A - Image correlation correspondence luminance signal/ chrominance signal separating filter - Google Patents
Image correlation correspondence luminance signal/ chrominance signal separating filterInfo
- Publication number
- JPS6448589A JPS6448589A JP20551587A JP20551587A JPS6448589A JP S6448589 A JPS6448589 A JP S6448589A JP 20551587 A JP20551587 A JP 20551587A JP 20551587 A JP20551587 A JP 20551587A JP S6448589 A JPS6448589 A JP S6448589A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- image
- correlation
- luminance signal
- image correlation
- 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 decrease a dot disturbance, by using properly a luminance signal/ chrominance signal separating filter by the correlation of the image in the vertical direction, horizontal direction and oblique direction of a composite color television signal. CONSTITUTION:The filter is provided with delaying means 5a-5f to obtain simultaneously the attending sample point to delay an input sampling signal and separate the luminance signal and the chrominance signal and the sample point close to this and an image correlation deciding means 7 to detect the image correlation of the vertical direction, the image correlation of the horizontal direction and the image correlation of the oblique direction respectively from the value of an approximate sample point and decide the correlation of the image. In accordance with the deciding result, either of the outputs of the horizontal direction filter, vertical direction and horizontal direction is made into the chrominance signal output of the luminance signal/chrominace signal separating filter. Thus, the influence of the leakage to the mutual channel of the luminance signal and the chrominance signal at the area where the change of the image is violent can be decreased and the dot disturbance can be decreased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20551587A JPS6448589A (en) | 1987-08-18 | 1987-08-18 | Image correlation correspondence luminance signal/ chrominance signal separating filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20551587A JPS6448589A (en) | 1987-08-18 | 1987-08-18 | Image correlation correspondence luminance signal/ chrominance signal separating filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6448589A true JPS6448589A (en) | 1989-02-23 |
Family
ID=16508147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20551587A Pending JPS6448589A (en) | 1987-08-18 | 1987-08-18 | Image correlation correspondence luminance signal/ chrominance signal separating filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6448589A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5508753A (en) * | 1994-04-21 | 1996-04-16 | Matsushita Electric Industrial Co., Ltd. | Luminance and chrominance signal separating apparatus |
| CN102123289A (en) * | 2010-12-28 | 2011-07-13 | 华亚微电子（上海）有限公司 | Image motion estimation method and device in three-dimensional comb filtering |
-
1987
- 1987-08-18 JP JP20551587A patent/JPS6448589A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5508753A (en) * | 1994-04-21 | 1996-04-16 | Matsushita Electric Industrial Co., Ltd. | Luminance and chrominance signal separating apparatus |
| CN102123289A (en) * | 2010-12-28 | 2011-07-13 | 华亚微电子（上海）有限公司 | Image motion estimation method and device in three-dimensional comb filtering |
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