JPS59169274A - ２値化回路 - Google Patents

２値化回路

Info

Publication number
JPS59169274A
JPS59169274A JP58043486A JP4348683A JPS59169274A JP S59169274 A JPS59169274 A JP S59169274A JP 58043486 A JP58043486 A JP 58043486A JP 4348683 A JP4348683 A JP 4348683A JP S59169274 A JPS59169274 A JP S59169274A
Authority
JP
Japan
Prior art keywords
circuit
signal
video signal
value
level
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.)
Granted
Application number
JP58043486A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0430783B2 (enrdf_load_stackoverflow
Inventor
Kikuji Miyazaki
宮崎　喜久次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP58043486A priority Critical patent/JPS59169274A/ja
Publication of JPS59169274A publication Critical patent/JPS59169274A/ja
Publication of JPH0430783B2 publication Critical patent/JPH0430783B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP58043486A 1983-03-16 1983-03-16 ２値化回路 Granted JPS59169274A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58043486A JPS59169274A (ja) 1983-03-16 1983-03-16 ２値化回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58043486A JPS59169274A (ja) 1983-03-16 1983-03-16 ２値化回路

Publications (2)

Publication Number Publication Date
JPS59169274A true JPS59169274A (ja) 1984-09-25
JPH0430783B2 JPH0430783B2 (enrdf_load_stackoverflow) 1992-05-22

Family

ID=12665045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58043486A Granted JPS59169274A (ja) 1983-03-16 1983-03-16 ２値化回路

Country Status (1)

Country Link
JP (1) JPS59169274A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0430783B2 (enrdf_load_stackoverflow) 1992-05-22

Similar Documents

Publication Publication Date Title
EP0109490A2 (en) Apparatus for discriminating a paper-like material
EP1067766A3 (en) Image pickup apparatus
JPS59169274A (ja) ２値化回路
CA1242032A (en) Method of and apparatus for discriminating sharp edge transitions produced during optical scanning of differently reflective regions
JPS63314071A (ja) 画像読取装置の２値化処理方法
JPS6019709B2 (ja) 信号２値化装置
JP2675079B2 (ja) ２値化処理回路
JPS5964917A (ja) ２値化方式
JPS6354272B2 (enrdf_load_stackoverflow)
JPH0540098A (ja) 外観検査装置
JPS5858404A (ja) 信号の浮動２値方式
JPS61189444A (ja) 織物等シ−ト状物の表面傷検出方法
JPS62171382A (ja) ビデオ信号２値化回路
JPH01202984A (ja) ２値化処理装置
JPH11166905A (ja) 表面検査装置、表面検査方法及びコンピュータ読み取り可能な記憶媒体
JPH06178304A (ja) 画像の二値化法、画像の二値化装置、搬送ライン上の物品印字検査装置
JPH0191571A (ja) 画像処理装置
JPS6161516A (ja) 画信号２値化装置
JPS6153756B2 (enrdf_load_stackoverflow)
JPS63256842A (ja) パタ−ン認識装置
JPS5918409A (ja) 赤熱物体表面検査装置
JPS61251363A (ja) 画像読取り装置
JPS63160462A (ja) 読取装置
JPS6149872B2 (enrdf_load_stackoverflow)
JPS58130674A (ja) 二値化装置