JPH0436371U - - Google Patents

Info

Publication number
JPH0436371U
JPH0436371U JP7720290U JP7720290U JPH0436371U JP H0436371 U JPH0436371 U JP H0436371U JP 7720290 U JP7720290 U JP 7720290U JP 7720290 U JP7720290 U JP 7720290U JP H0436371 U JPH0436371 U JP H0436371U
Authority
JP
Japan
Prior art keywords
video signal
circuit
horizontal
input video
contour enhancement
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
Application number
JP7720290U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7720290U priority Critical patent/JPH0436371U/ja
Publication of JPH0436371U publication Critical patent/JPH0436371U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)

Description

【図面の簡単な説明】
第1図は本考案による水平輪郭強調回路の一実
施例を示すブロツク図、第2図はその各部信号波
形図、第3図はその非線形増幅回路の入出力特性
図である。 10……エツジ成分抽出回路、11……第1の
微分回路、12……非線形増幅回路、13……第
2の微分回路、21……減算回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 入力ビデオ信号を第1及び第2の微分回路を順
    次介して、その入力ビデオ信号における水平方向
    のエツジ成分を抽出して、この抽出したエツジ成
    分を入力ビデオ信号に合成して水平方向の輪郭を
    強調した出力ビデオ信号を得る水平輪郭強調回路
    において、 上記第1又は第2の微分回路の少なくとも一方
    の後段に、 入力レベルが大きくなるに従い、増幅率が低下
    する非線形増幅回路を設けたことを特徴とする水
    平輪郭強調回路。
JP7720290U 1990-07-20 1990-07-20 Pending JPH0436371U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7720290U JPH0436371U (ja) 1990-07-20 1990-07-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7720290U JPH0436371U (ja) 1990-07-20 1990-07-20

Publications (1)

Publication Number Publication Date
JPH0436371U true JPH0436371U (ja) 1992-03-26

Family

ID=31619369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7720290U Pending JPH0436371U (ja) 1990-07-20 1990-07-20

Country Status (1)

Country Link
JP (1) JPH0436371U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02121575A (ja) * 1988-10-31 1990-05-09 Sony Corp 輪郭強調回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02121575A (ja) * 1988-10-31 1990-05-09 Sony Corp 輪郭強調回路

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