JPS61100088U - - Google Patents
Info
- Publication number
- JPS61100088U JPS61100088U JP18320884U JP18320884U JPS61100088U JP S61100088 U JPS61100088 U JP S61100088U JP 18320884 U JP18320884 U JP 18320884U JP 18320884 U JP18320884 U JP 18320884U JP S61100088 U JPS61100088 U JP S61100088U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- chroma
- color
- chroma key
- key
- 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
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図はこの考案に係るクロマキー装置の一実
施例を示すブロツク図、第２図は従来のクロマキ
ー装置を示すブロツク図である。
１……入力端子、２……クロマキー信号発生部
、３……副搬送波信号入力端子、１３……出力端
子、１４……分離部、１５……副搬送波信号位相
変調部、１６……色度信号ビート部、１７……副
搬送波信号変調部、１８……副搬送波信号混合部
、１９……混合部。
FIG. 1 is a block diagram showing an embodiment of the chromakey device according to this invention, and FIG. 2 is a block diagram showing a conventional chromakey device. DESCRIPTION OF SYMBOLS 1... Input terminal, 2... Chroma key signal generation section, 3... Subcarrier signal input terminal, 13... Output terminal, 14... Separation section, 15... Subcarrier signal phase modulation section, 16... Chromaticity Signal beat section, 17... Subcarrier signal modulation section, 18... Subcarrier signal mixing section, 19... Mixing section.
Claims (1)
応するキー信号を作り出すクロマキー装置におい
て、入力複合カラー映像信号を輝度信号とクロマ
信号に分離する分離部と、この分離されたクロマ
信号をクロマキー信号によりゲートする色度信号
ゲート部と、カラー副搬送波信号をクロマキー信
号により変調する副搬送波信号変調部と、前記ゲ
ートされたクロマ信号にこの変調された副搬送波
信号を付加したのち上記輝度信号と混合する混合
部とから構成され、前記クロマキー信号を使用し
、キー信号に対応する部分の色調を任意の色に変
換するカラーリプレース効果を付加することを特
徴とするクロマキー装置。 A chroma key device that generates a key signal corresponding to an arbitrary color tone specified from a color video signal includes a separation section that separates an input composite color video signal into a luminance signal and a chroma signal, and a gate for this separated chroma signal using a chroma key signal. a chromaticity signal gate section that modulates the color subcarrier signal with a chroma key signal; and a mixer that adds the modulated subcarrier signal to the gated chroma signal and then mixes it with the luminance signal. What is claimed is: 1. A chroma key device comprising: a chroma key device, which uses the chroma key signal to add a color replacement effect of converting the color tone of a portion corresponding to the key signal to an arbitrary color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18320884U JPS61100088U (en) | 1984-12-04 | 1984-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18320884U JPS61100088U (en) | 1984-12-04 | 1984-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61100088U true JPS61100088U (en) | 1986-06-26 |
Family
ID=30740718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18320884U Pending JPS61100088U (en) | 1984-12-04 | 1984-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61100088U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233933A (en) * | 1975-09-12 | 1977-03-15 | Hoechst Ag | Compositions for antistatic thermoplastic molding and antistatic moldings and method of manufacture |
| JPS573483A (en) * | 1980-06-09 | 1982-01-08 | Nec Corp | Chroma-key effect generator |
-
1984
- 1984-12-04 JP JP18320884U patent/JPS61100088U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233933A (en) * | 1975-09-12 | 1977-03-15 | Hoechst Ag | Compositions for antistatic thermoplastic molding and antistatic moldings and method of manufacture |
| JPS573483A (en) * | 1980-06-09 | 1982-01-08 | Nec Corp | Chroma-key effect generator |
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