JPH0130342B2 - - Google Patents

Info

Publication number
JPH0130342B2
JPH0130342B2 JP12359380A JP12359380A JPH0130342B2 JP H0130342 B2 JPH0130342 B2 JP H0130342B2 JP 12359380 A JP12359380 A JP 12359380A JP 12359380 A JP12359380 A JP 12359380A JP H0130342 B2 JPH0130342 B2 JP H0130342B2
Authority
JP
Japan
Prior art keywords
signal
video signal
distortion
shedding
conversion
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.)
Expired
Application number
JP12359380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5748871A (en
Inventor
Mitsuharu Tadauchi
Kyohiko Tanno
Yasuyuki Kojima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12359380A priority Critical patent/JPS5748871A/ja
Publication of JPS5748871A publication Critical patent/JPS5748871A/ja
Publication of JPH0130342B2 publication Critical patent/JPH0130342B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/405Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP12359380A 1980-09-08 1980-09-08 Signal processing system Granted JPS5748871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12359380A JPS5748871A (en) 1980-09-08 1980-09-08 Signal processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12359380A JPS5748871A (en) 1980-09-08 1980-09-08 Signal processing system

Publications (2)

Publication Number Publication Date
JPS5748871A JPS5748871A (en) 1982-03-20
JPH0130342B2 true JPH0130342B2 (enExample) 1989-06-19

Family

ID=14864441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12359380A Granted JPS5748871A (en) 1980-09-08 1980-09-08 Signal processing system

Country Status (1)

Country Link
JP (1) JPS5748871A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177071A (ja) * 1982-04-09 1983-10-17 Fuji Xerox Co Ltd シエ−デイング補正装置

Also Published As

Publication number Publication date
JPS5748871A (en) 1982-03-20

Similar Documents

Publication Publication Date Title
JPS58172061A (ja) 信号処理装置
JPH06101791B2 (ja) ノイズの影響を防止したシエ−デイング補正方法及びその装置
JPS5925267B2 (ja) 光学文字読取装置
JPH0130342B2 (enExample)
JPH0560297B2 (enExample)
JPS6156673B2 (enExample)
JPS63287161A (ja) 画像読取装置
JPS6096955A (ja) シエ−デイング補正装置
JPH0666885B2 (ja) 画像読取装置
JPH0354510B2 (enExample)
KR0138153B1 (ko) 쉐이딩현상 보정장치
JPS6161559A (ja) 情報読取装置
JPH0591319A (ja) 黒レベル調整回路
JP2832929B2 (ja) 画像信号処理方法
JPS60102063A (ja) 画像信号補正装置
JPH0865503A (ja) 画像読み取り処理装置
JPS6339141B2 (enExample)
JPS6339140B2 (enExample)
JPH08242372A (ja) 画像処理装置
JP2670075B2 (ja) 画像フルスケール決定装置
JPH04114562A (ja) 画像読取装置
JPH01158878A (ja) 画像読取装置
JPS60182855A (ja) 画像読取り装置
JPS63211876A (ja) 集積回路装置
JPH0740718B2 (ja) 画像処理装置