JPH0117311B2 - - Google Patents

Info

Publication number
JPH0117311B2
JPH0117311B2 JP55088276A JP8827680A JPH0117311B2 JP H0117311 B2 JPH0117311 B2 JP H0117311B2 JP 55088276 A JP55088276 A JP 55088276A JP 8827680 A JP8827680 A JP 8827680A JP H0117311 B2 JPH0117311 B2 JP H0117311B2
Authority
JP
Japan
Prior art keywords
reference level
circuit
quantization
mode
image 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.)
Expired
Application number
JP55088276A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5713858A (en
Inventor
Hironori Takashima
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP8827680A priority Critical patent/JPS5713858A/ja
Publication of JPS5713858A publication Critical patent/JPS5713858A/ja
Publication of JPH0117311B2 publication Critical patent/JPH0117311B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP8827680A 1980-06-28 1980-06-28 Adaptive quantization device Granted JPS5713858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8827680A JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8827680A JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Publications (2)

Publication Number Publication Date
JPS5713858A JPS5713858A (en) 1982-01-23
JPH0117311B2 true JPH0117311B2 (enrdf_load_stackoverflow) 1989-03-29

Family

ID=13938375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8827680A Granted JPS5713858A (en) 1980-06-28 1980-06-28 Adaptive quantization device

Country Status (1)

Country Link
JP (1) JPS5713858A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8416496D0 (en) * 1984-06-28 1984-08-01 King R A Encoding method
US4719259A (en) * 1985-04-29 1988-01-12 Eastman Kodak Company Process for producing ethylene/vinyl alcohol copolymers
JPH03147480A (ja) * 1989-11-02 1991-06-24 Canon Inc 画像処理装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556762A (en) * 1978-10-23 1980-04-25 Ricoh Co Ltd Picture element signal conversion method for digital reproducer
JPS5570171A (en) * 1978-11-21 1980-05-27 Ricoh Co Ltd Picture noise eliminating method

Also Published As

Publication number Publication date
JPS5713858A (en) 1982-01-23

Similar Documents

Publication Publication Date Title
JP3313399B2 (ja) 画像処理装置
JPS58202666A (ja) ２値化方式
JPS60204177A (ja) 画像信号処理装置
JPS6198069A (ja) 画像処理装置
JP3200931B2 (ja) 網点画像の領域判別回路
JP3699177B2 (ja) 改良型色調調整のための低精度ルックアップ・テーブルからの高精度ルックアップ・テーブル
JPS5896458A (ja) ２値化方式
JPH0117311B2 (enrdf_load_stackoverflow)
US5926570A (en) Optical scanner using dithering with adaptive threshold
EP0160364B1 (en) Binarizing system of picture image signals
JPS63205238A (ja) 画像処理装置
JP2915448B2 (ja) イメージセンサの２値化出力方法
JP3466655B2 (ja) 画像処理装置
JP3215146B2 (ja) 画像処理装置
JP2857906B2 (ja) 中間調の２値化処理装置
JP3136671B2 (ja) 画像読取り装置
JPS60102060A (ja) 画像二値化装置
JP2527482B2 (ja) 画像処理装置
JPH01276969A (ja) 画像信号処理装置
JP2618894B2 (ja) 画像信号処理装置
JPH0618439B2 (ja) 画像処理装置
JPS58119268A (ja) 画信号処理方式
JPS60236582A (ja) 画信号量子化方式
JPH11187260A (ja) ビデオ信号２値化装置
JPH0778830B2 (ja) 画像信号処理装置