DE3580861D1 - System zur umwandlung von bildsignalen in binaere form. - Google Patents

System zur umwandlung von bildsignalen in binaere form.

Info

Publication number
DE3580861D1
DE3580861D1 DE8585301554T DE3580861T DE3580861D1 DE 3580861 D1 DE3580861 D1 DE 3580861D1 DE 8585301554 T DE8585301554 T DE 8585301554T DE 3580861 T DE3580861 T DE 3580861T DE 3580861 D1 DE3580861 D1 DE 3580861D1
Authority
DE
Germany
Prior art keywords
image signals
binary form
converting image
converting
binary
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
DE8585301554T
Other languages
English (en)
Inventor
Yukio Tsuda
Fumio Owada
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE3580861D1 publication Critical patent/DE3580861D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
DE8585301554T 1984-04-28 1985-03-06 System zur umwandlung von bildsignalen in binaere form. Expired - Lifetime DE3580861D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59086332A JPS60230767A (ja) 1984-04-28 1984-04-28 画像信号の二値化方式

Publications (1)

Publication Number Publication Date
DE3580861D1 true DE3580861D1 (de) 1991-01-24

Family

ID=13883879

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585301554T Expired - Lifetime DE3580861D1 (de) 1984-04-28 1985-03-06 System zur umwandlung von bildsignalen in binaere form.

Country Status (5)

Country Link
US (1) US4731862A (de)
EP (1) EP0160363B1 (de)
JP (1) JPS60230767A (de)
CA (1) CA1243108A (de)
DE (1) DE3580861D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177795A (en) * 1985-11-05 1993-01-05 Canon Kabushiki Kaisha Image processing apparatus
US4961117A (en) * 1987-11-13 1990-10-02 New Dest Corporation Document scanner
JP2683014B2 (ja) * 1988-03-08 1997-11-26 キヤノン株式会社 画像処理方法及び装置
US5086484A (en) * 1988-08-24 1992-02-04 Canon Kabushiki Kaisha Image processing apparatus with fixed or variable threshold
JPH02126771A (ja) * 1988-11-07 1990-05-15 Aisin Seiki Co Ltd 画像情報の２値化方法および装置
JPH0681258B2 (ja) * 1988-12-05 1994-10-12 三菱電機株式会社 イメージデータの二値化回路
US5859948A (en) * 1988-12-06 1999-01-12 Canon Kabushiki Kaisha Images processing apparatus for controlling binarized multi-value image data to convert pulse widths differently in at least two modes
US5224178A (en) * 1990-09-14 1993-06-29 Eastman Kodak Company Extending dynamic range of stored image database
US5172247A (en) * 1990-10-24 1992-12-15 Eastman Kodak Company High speed digital error diffusion process for continuous tone image-to-binary image conversion
US5455873A (en) * 1990-12-03 1995-10-03 Information International, Inc. Facsimile dynamic thresholding apparatus and method of use thereof
US5377282A (en) * 1991-09-19 1994-12-27 International Business Machines Corporation Optical inspection system utilizing dynamic analog-to-digital thresholding

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL244109A (de) * 1958-10-07
JPS5728474A (en) * 1980-07-28 1982-02-16 Ricoh Co Ltd Picture processing system
JPS5784670A (en) * 1980-11-17 1982-05-27 Fujitsu Ltd Video signal read-in system
US4442544A (en) * 1981-07-09 1984-04-10 Xerox Corporation Adaptive thresholder
US4430748A (en) * 1981-09-21 1984-02-07 Xerox Corporation Image thresholding system
JPS5954376A (ja) * 1982-09-21 1984-03-29 Konishiroku Photo Ind Co Ltd 画像処理方法
JPS60230768A (ja) * 1984-04-28 1985-11-16 Toshiba Corp 画像信号の二値化方式

Also Published As

Publication number Publication date
CA1243108A (en) 1988-10-11
US4731862A (en) 1988-03-15
EP0160363B1 (de) 1990-12-12
JPS60230767A (ja) 1985-11-16
EP0160363A3 (en) 1988-09-14
EP0160363A2 (de) 1985-11-06

Similar Documents

Publication Publication Date Title
DE3767836D1 (de) Verbundetikette zur befestigung an einem gegenstand.
DE3789273D1 (de) Kodierungssystem zur Reduktion der Redundanz.
DE3575062D1 (de) System zur aufzeichnung von halbtonbildern.
DE3789235D1 (de) Digitales system zur überwachung von physikalischen erscheinungen.
NL190886C (nl) Digitaal signaaldemodulatiesysteem.
DE3574805D1 (de) System zur abwechselnden uebertragungskanalumschaltung.
DE3587152D1 (de) System zur maschinellen uebersetzung.
DE3585279D1 (de) Bildverarbeitungssystem.
DE3575028D1 (de) Geraet zur herstellung von bildern.
DE3586507T2 (de) Bildverarbeitungssystem.
DE3579510D1 (de) Faksimilesystem.
DE3789846T2 (de) Bildablesesystem.
DE3580861D1 (de) System zur umwandlung von bildsignalen in binaere form.
DE3584774D1 (de) Signalverarbeitungssystem.
DK161387A (da) Papirtoerringsanlaeg.
DE3581560D1 (de) Chrominanzsignal-verarbeitungssystem.
DE3586406D1 (de) Tabelliersystem.
DE3782920T2 (de) System zur verarbeitung von fernsehbildsignalen.
DE3686416D1 (de) System zur energieumwandlung.
DE69015252T2 (de) Vorrichtung zur Umwandlung von Bildsignalen in binäre Form.
DE3576632D1 (de) Schaltung zur bearbeitung von videosignalen.
NL191731C (nl) Afmeersysteem.
DE3585584D1 (de) Digitales videosignalverarbeitungssystem.
DE3769942D1 (de) Amplitudenmodulierter rundfunksender.
DE3579381D1 (de) Chrominanzsignalverarbeitungssystem.

Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Free format text: VON KREISLER, A., DIPL.-CHEM. SELTING, G., DIPL.-ING. WERNER, H., DIPL.-CHEM. DR.RER.NAT. FUES, J., DIPL.-CHEM. DR.RER.NAT. BOECKMANN GEN. DALLMEYER, G., DIPL.-ING. HILLERINGMANN, J., DIPL.-ING. JOENSSON, H., DIPL.-CHEM. DR.RER.NAT., PAT.-ANWAELTE, 5000 KOELN

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee