JPS55149571A - Image processor - Google Patents

Image processor

Info

Publication number
JPS55149571A
JPS55149571A JP5242580A JP5242580A JPS55149571A JP S55149571 A JPS55149571 A JP S55149571A JP 5242580 A JP5242580 A JP 5242580A JP 5242580 A JP5242580 A JP 5242580A JP S55149571 A JPS55149571 A JP S55149571A
Authority
JP
Japan
Prior art keywords
image processor
processor
image
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.)
Pending
Application number
JP5242580A
Other languages
English (en)
Inventor
Sana Deyuan
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.)
Recognition Equipment Inc
Original Assignee
Recognition Equipment 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 Recognition Equipment Inc filed Critical Recognition Equipment Inc
Publication of JPS55149571A publication Critical patent/JPS55149571A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G06V10/30—Noise filtering
    • 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
    • G06V10/36—Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given point; Non-linear local filtering operations, e.g. median filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Input (AREA)
  • Character Input (AREA)
JP5242580A 1979-04-23 1980-04-22 Image processor Pending JPS55149571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3203479A 1979-04-23 1979-04-23

Publications (1)

Publication Number Publication Date
JPS55149571A true JPS55149571A (en) 1980-11-20

Family

ID=21862751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5242580A Pending JPS55149571A (en) 1979-04-23 1980-04-22 Image processor

Country Status (5)

Country Link
JP (1) JPS55149571A (ja)
CA (1) CA1164086A (ja)
DE (1) DE3015637C2 (ja)
FR (1) FR2455322B1 (ja)
GB (1) GB2047934B (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463381A (en) * 1980-04-16 1984-07-31 Eastman Kodak Company Image processing apparatus including a partitioned low pass channel
US4446484A (en) * 1981-04-16 1984-05-01 Eastman Kodak Company Image gradient detectors operating in a partitioned low-pass channel
US4517607A (en) * 1981-11-09 1985-05-14 Ricoh Company, Ltd. Method of and apparatus for compensating image in image reproduction system
EP0083213A3 (en) * 1981-12-28 1984-08-08 General Electric Company Digital background normalizer using two dimensional integration techniques
KR0181129B1 (ko) * 1995-06-17 1999-05-01 김광호 화상처리장치의 화소 이치화 장치 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5533348A (en) * 1978-08-31 1980-03-08 Fuji Xerox Co Ltd Noise elimination system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394346A (en) * 1964-04-28 1968-07-23 Rca Corp Filter circuit
JPS48102926A (ja) * 1972-04-07 1973-12-24
US3976973A (en) * 1974-01-07 1976-08-24 Recognition Equipment Incorporated Horizontal scan vertical simulation character reading
US3903543A (en) * 1974-01-16 1975-09-02 Bell Telephone Labor Inc Charge transfer device decoder and compander
US4075605A (en) * 1974-09-13 1978-02-21 Recognition Equipment Incorporated Character recognition unit
US3990044A (en) * 1975-07-07 1976-11-02 The Singer Company Symbol recognition enhancing apparatus
NL7608862A (nl) * 1976-08-10 1978-02-14 Philips Nv Stelsel voor de overdracht van gecodeerde berichten met een gereduceerde overdracht- tijd.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5533348A (en) * 1978-08-31 1980-03-08 Fuji Xerox Co Ltd Noise elimination system

Also Published As

Publication number Publication date
GB2047934B (en) 1983-03-16
FR2455322B1 (fr) 1987-07-17
GB2047934A (en) 1980-12-03
FR2455322A1 (fr) 1980-11-21
DE3015637A1 (de) 1980-10-30
CA1164086A (en) 1984-03-20
DE3015637C2 (de) 1985-10-31

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