JPS619965U - Contour enhancement circuit - Google Patents
Contour enhancement circuitInfo
- Publication number
- JPS619965U JPS619965U JP9246784U JP9246784U JPS619965U JP S619965 U JPS619965 U JP S619965U JP 9246784 U JP9246784 U JP 9246784U JP 9246784 U JP9246784 U JP 9246784U JP S619965 U JPS619965 U JP S619965U
- Authority
- JP
- Japan
- Prior art keywords
- image signal
- output
- signal
- field
- selection means
- 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
- Studio Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第５図はテレビジョン信号のインクレース走査を説明す
る図、第２図は被写体の動きにより発生する二重像現像
を説明する図、第３図は従来の輪郭強調回路のブロック
図、第４図ａは黒地に白の被写体を写したときの画面対
応図、第４図ｂはその信号波形を示す図、第１図は本考
案の一実施例のブロック図、第６図は本考案且回路にお
ける第４図ａと同じ被写体を写したときの信号波形を示
す図である。
２：ＩＨ遅延回路、３８：加算器、３０：減算器、３２
：インバータ、３４．３５：スイッチ。FIG. 5 is a diagram explaining ink-lace scanning of a television signal, FIG. 2 is a diagram explaining double image development caused by the movement of a subject, FIG. 3 is a block diagram of a conventional contour enhancement circuit, and FIG. Figure a is a screen correspondence diagram when a white subject is photographed on a black background, Figure 4b is a diagram showing the signal waveform, Figure 1 is a block diagram of one embodiment of the present invention, and Figure 6 is a diagram showing the image of a white subject on a black background. FIG. 4 is a diagram showing signal waveforms when the same subject as in FIG. 4a is photographed in the circuit; 2: IH delay circuit, 38: Adder, 30: Subtracter, 32
: Inverter, 34.35: Switch.
Claims (1)
し出力する信号処理装置において、上記画像信号を１水
平走査期間（以下ＩＨという）遅延させる手段と、当該
ＩＨ遅延信号と上記未遅延画像信号を減算する第１の演
算手段と、当該演算手段の出力の符号を反転させる手段
と、この反転手段の入力と出力をフィールド毎に切替で
選択する第１の選択手段と、上記ＩＨ遅延信号と未遅延
画像信号をフィールド毎に切替で選択する第２の選択手
段と、上記第１の選択手段の出力と上記第２の選択手段
の出力を加算し輪郭強調信号を得る第２の演算手段を有
することを特徴とする画像信号の輪郭強調回路。A signal processing device that repeatedly outputs images of the same field of a television image signal, comprising means for delaying the image signal by one horizontal scanning period (hereinafter referred to as IH), and a means for subtracting the IH delayed signal and the undelayed image signal. 1 arithmetic means, means for inverting the sign of the output of the arithmetic means, first selection means for switching and selecting the input and output of the inverting means for each field, and the IH delayed signal and the undelayed image signal. The present invention is characterized by having a second selection means for switching and selecting a field by field, and a second calculation means for adding the output of the first selection means and the output of the second selection means to obtain an edge emphasis signal. Image signal contour enhancement circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9246784U JPS619965U (en) | 1984-06-22 | 1984-06-22 | Contour enhancement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9246784U JPS619965U (en) | 1984-06-22 | 1984-06-22 | Contour enhancement circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS619965U true JPS619965U (en) | 1986-01-21 |
Family
ID=30649290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9246784U Pending JPS619965U (en) | 1984-06-22 | 1984-06-22 | Contour enhancement circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS619965U (en) |
-
1984
- 1984-06-22 JP JP9246784U patent/JPS619965U/en active Pending
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