JPS6447169U - - Google Patents
Info
- Publication number
- JPS6447169U JPS6447169U JP14210487U JP14210487U JPS6447169U JP S6447169 U JPS6447169 U JP S6447169U JP 14210487 U JP14210487 U JP 14210487U JP 14210487 U JP14210487 U JP 14210487U JP S6447169 U JPS6447169 U JP S6447169U
- Authority
- JP
- Japan
- Prior art keywords
- output
- gamma correction
- level conversion
- switching means
- video 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
- 238000006243 chemical reaction Methods 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は本考案の一実施例の映像信号処理装置
の電気的構成を示すブロツク図、第２図はそのガ
ンマ補正特性を示すグラフ、第３図は先行技術を
示すブロツク図である。
１１……ガンマ補正ブロツク、１１ａ……ガン
マ補正回路、１１ｂ，１１ｃ……ガンマ補正用可
変抵抗器、１２ａ，１２ｂ……画質切換スイツチ
、１３……混合回路、１４……輪郭補正回路。
FIG. 1 is a block diagram showing the electrical configuration of a video signal processing device according to an embodiment of the present invention, FIG. 2 is a graph showing its gamma correction characteristics, and FIG. 3 is a block diagram showing the prior art. 11... Gamma correction block, 11a... Gamma correction circuit, 11b, 11c... Gamma correction variable resistor, 12a, 12b... Image quality switching switch, 13... Mixing circuit, 14... Contour correction circuit.
Claims (1)
、 ガンマ補正手段の出力が並列に与えられ、入力
と出力とのレベル変換態様が相互に異なる複数の
レベル変換手段と、 各レベル変換手段出力を選択的に導出する第１
切換手段と、 第１切換手段の出力が与えられる輪郭補正手段
と、 第１切換手段出力に対して輪郭補正手段出力を
導入／遮断する第２切換手段とを含むことを特徴
とする映像信号処理装置。[Claims for Utility Model Registration] Gamma correction means for performing gamma correction on a video signal; a plurality of level conversion means to which the outputs of the gamma correction means are applied in parallel and whose level conversion modes between input and output are different; A first method for selectively deriving the output of each level conversion means.
Video signal processing characterized by including a switching means, a contour correction means to which the output of the first switching means is given, and a second switching means for introducing/blocking the output of the contour correction means with respect to the output of the first switching means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14210487U JPS6447169U (en) | 1987-09-17 | 1987-09-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14210487U JPS6447169U (en) | 1987-09-17 | 1987-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6447169U true JPS6447169U (en) | 1989-03-23 |
Family
ID=31407765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14210487U Pending JPS6447169U (en) | 1987-09-17 | 1987-09-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7308150B2 (en) | 2002-09-19 | 2007-12-11 | Fuji Xerox Co., Ltd. | Image processing apparatus |
-
1987
- 1987-09-17 JP JP14210487U patent/JPS6447169U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7308150B2 (en) | 2002-09-19 | 2007-12-11 | Fuji Xerox Co., Ltd. | Image processing apparatus |