CA2013750A1 - Methode adaptive pour accroitre la nettete des images electroniques - Google Patents

Methode adaptive pour accroitre la nettete des images electroniques

Info

Publication number
CA2013750A1
CA2013750A1 CA2013750A CA2013750A CA2013750A1 CA 2013750 A1 CA2013750 A1 CA 2013750A1 CA 2013750 A CA2013750 A CA 2013750A CA 2013750 A CA2013750 A CA 2013750A CA 2013750 A1 CA2013750 A1 CA 2013750A1
Authority
CA
Canada
Prior art keywords
adaptively
image
high frequency
frequency components
electronic images
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
CA2013750A
Other languages
English (en)
Other versions
CA2013750C (fr
Inventor
Woo-Jin Song
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Publication of CA2013750A1 publication Critical patent/CA2013750A1/fr
Application granted granted Critical
Publication of CA2013750C publication Critical patent/CA2013750C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening
    • G06T5/75—Unsharp masking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
CA002013750A 1989-05-15 1990-04-03 Methode adaptive pour accroitre la nettete des images electroniques Expired - Fee Related CA2013750C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/351,930 US5038388A (en) 1989-05-15 1989-05-15 Method for adaptively sharpening electronic images
US351,930 1989-05-15

Publications (2)

Publication Number Publication Date
CA2013750A1 true CA2013750A1 (fr) 1990-11-15
CA2013750C CA2013750C (fr) 2000-12-12

Family

ID=23383043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002013750A Expired - Fee Related CA2013750C (fr) 1989-05-15 1990-04-03 Methode adaptive pour accroitre la nettete des images electroniques

Country Status (9)

Country Link
US (1) US5038388A (fr)
EP (1) EP0398861B1 (fr)
JP (1) JP3070860B2 (fr)
AT (1) ATE144636T1 (fr)
AU (1) AU619971B2 (fr)
CA (1) CA2013750C (fr)
DE (2) DE398861T1 (fr)
ES (1) ES2020797A4 (fr)
GR (1) GR900300197T1 (fr)

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Also Published As

Publication number Publication date
EP0398861A2 (fr) 1990-11-22
DE69028946T2 (de) 1997-04-17
AU5324490A (en) 1990-11-15
DE398861T1 (de) 1991-03-21
US5038388A (en) 1991-08-06
GR900300197T1 (en) 1991-10-10
JP3070860B2 (ja) 2000-07-31
EP0398861B1 (fr) 1996-10-23
AU619971B2 (en) 1992-02-06
JPH034680A (ja) 1991-01-10
EP0398861A3 (fr) 1992-10-07
CA2013750C (fr) 2000-12-12
DE69028946D1 (de) 1996-11-28
ATE144636T1 (de) 1996-11-15
ES2020797A4 (es) 1991-10-01

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