JPS58196765A - 画像信号二値化装置 - Google Patents

画像信号二値化装置

Info

Publication number
JPS58196765A
JPS58196765A JP57078181A JP7818182A JPS58196765A JP S58196765 A JPS58196765 A JP S58196765A JP 57078181 A JP57078181 A JP 57078181A JP 7818182 A JP7818182 A JP 7818182A JP S58196765 A JPS58196765 A JP S58196765A
Authority
JP
Japan
Prior art keywords
level
circuit
image
image signal
output
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
JP57078181A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0369231B2 (enrdf_load_stackoverflow
Inventor
Yoshikazu Koumizo
構溝　良和
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP57078181A priority Critical patent/JPS58196765A/ja
Priority to US06/491,797 priority patent/US4667237A/en
Publication of JPS58196765A publication Critical patent/JPS58196765A/ja
Publication of JPH0369231B2 publication Critical patent/JPH0369231B2/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)
  • Facsimile Image Signal Circuits (AREA)
  • Image Input (AREA)
JP57078181A 1982-05-12 1982-05-12 画像信号二値化装置 Granted JPS58196765A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57078181A JPS58196765A (ja) 1982-05-12 1982-05-12 画像信号二値化装置
US06/491,797 US4667237A (en) 1982-05-12 1983-05-05 Image signal processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57078181A JPS58196765A (ja) 1982-05-12 1982-05-12 画像信号二値化装置

Publications (2)

Publication Number Publication Date
JPS58196765A true JPS58196765A (ja) 1983-11-16
JPH0369231B2 JPH0369231B2 (enrdf_load_stackoverflow) 1991-10-31

Family

ID=13654791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57078181A Granted JPS58196765A (ja) 1982-05-12 1982-05-12 画像信号二値化装置

Country Status (1)

Country Link
JP (1) JPS58196765A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6094928A (en) * 1997-03-10 2000-08-01 Matsushita Electric Industrial Co., Ltd. Outdoor unit of separate type air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6094928A (en) * 1997-03-10 2000-08-01 Matsushita Electric Industrial Co., Ltd. Outdoor unit of separate type air conditioner

Also Published As

Publication number Publication date
JPH0369231B2 (enrdf_load_stackoverflow) 1991-10-31

Similar Documents

Publication Publication Date Title
EP0150329A1 (en) Video data signal digitization and correction system
US3663110A (en) Apparatus responsive to optical density wherein an unknown sample density is compared to a stored value
US4667237A (en) Image signal processing device
JPS58196765A (ja) 画像信号二値化装置
JPS6411467A (en) Image input device
JP3885987B2 (ja) 画像読取装置および画像形成装置
KR900008440B1 (ko) 전하 이송장치로부터 2진 정보를 검출하는 방법 및 장치
US4571573A (en) Apparatus for converting an analog signal to a binary signal
JPS58196766A (ja) 画像信号二値化装置
JPS58121864A (ja) シエ−デイング補正装置
JPS6096955A (ja) シエ−デイング補正装置
JPS5964917A (ja) ２値化方式
JP3945389B2 (ja) 時間電圧変換器及び方法
SU786055A1 (ru) Электронный цветокорректор
JPS61256866A (ja) デジタル画像処理方法
JPS57119565A (en) Picture-signal correction system
JPS5914792B2 (ja) アナログ信号の二値信号化回路
JP2991734B2 (ja) 画像２値化方法
SU1082618A1 (ru) Устройство ввода информации в фотонаборную машину
JPS5510270A (en) Shading corrector of original reader
JP2670075B2 (ja) 画像フルスケール決定装置
JP3245213B2 (ja) 画像読取装置
JPS58223763A (ja) 周波数分析装置
JPH06217139A (ja) 画像処理装置
JPH04373258A (ja) ２値化回路