JPH0453354B2 - - Google Patents

Info

Publication number
JPH0453354B2
JPH0453354B2 JP60079874A JP7987485A JPH0453354B2 JP H0453354 B2 JPH0453354 B2 JP H0453354B2 JP 60079874 A JP60079874 A JP 60079874A JP 7987485 A JP7987485 A JP 7987485A JP H0453354 B2 JPH0453354 B2 JP H0453354B2
Authority
JP
Japan
Prior art keywords
block
halftone
pixels
signal
scanning direction
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 - Lifetime
Application number
JP60079874A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61238176A (ja
Inventor
Hisashi Ibaraki
Makoto Kobayashi
Hiroshi Ochi
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP60079874A priority Critical patent/JPS61238176A/ja
Priority to EP86400020A priority patent/EP0187724B1/en
Priority to DE8686400020T priority patent/DE3686821T2/de
Priority to US06/817,046 priority patent/US4722008A/en
Publication of JPS61238176A publication Critical patent/JPS61238176A/ja
Publication of JPH0453354B2 publication Critical patent/JPH0453354B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
JP60079874A 1985-01-10 1985-04-15 中間調ファクシミリ信号処理方法 Granted JPS61238176A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60079874A JPS61238176A (ja) 1985-04-15 1985-04-15 中間調ファクシミリ信号処理方法
EP86400020A EP0187724B1 (en) 1985-01-10 1986-01-07 Halftone picture processing apparatus
DE8686400020T DE3686821T2 (de) 1985-01-10 1986-01-07 Halbtonbildverarbeitungseinrichtung.
US06/817,046 US4722008A (en) 1985-01-10 1986-01-08 Halftone picture processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60079874A JPS61238176A (ja) 1985-04-15 1985-04-15 中間調ファクシミリ信号処理方法

Publications (2)

Publication Number Publication Date
JPS61238176A JPS61238176A (ja) 1986-10-23
JPH0453354B2 true JPH0453354B2 (enrdf_load_stackoverflow) 1992-08-26

Family

ID=13702368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60079874A Granted JPS61238176A (ja) 1985-01-10 1985-04-15 中間調ファクシミリ信号処理方法

Country Status (1)

Country Link
JP (1) JPS61238176A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2875531B2 (ja) * 1988-03-15 1999-03-31 キヤノン株式会社 画像処理装置

Also Published As

Publication number Publication date
JPS61238176A (ja) 1986-10-23

Similar Documents

Publication Publication Date Title
KR920007152B1 (ko) 화상판별방법 및 화상판별장치
US4821334A (en) Image processing apparatus
EP0187724B1 (en) Halftone picture processing apparatus
US4996603A (en) Image processing system
JPH04354470A (ja) 画像処理方法と、前記方法を行うための走査／印刷システムと、前記走査／印刷システム用の画像選択装置
US7636180B2 (en) Methods and apparatus for smoothing text outlines
JPH1056569A (ja) 画像処理方法および装置
US5611023A (en) Apparatus and method for processing two-tone image data so as to smooth and magnify image
JPH0666884B2 (ja) 網点写真領域識別方法
JP3262326B2 (ja) 画像処理装置および画像処理方法
JP3807891B2 (ja) 画像情報の領域判別方法および装置
JPH0453354B2 (enrdf_load_stackoverflow)
JPS62147860A (ja) 中間調フアクシミリ信号処理方式
JP3479161B2 (ja) 画像処理装置
US5970169A (en) Method and apparatus for image enhancement
JP2001119575A (ja) 画像処理装置
JPH10173930A (ja) 画像出力装置
JPH05153393A (ja) 画像処理装置
JP2521744B2 (ja) 画像処理装置
JPH04207575A (ja) 画像処理装置
JPH03113582A (ja) 文字背景処理装置
JPS6032475A (ja) 画像処理装置
JPH08172522A (ja) 解像度切り換え装置
JPS61161870A (ja) 網点写真領域識別方式
JPH0820103A (ja) 網点画像出力方法

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees