DE69028946D1 - Verfahren zur adaptiven Schärfung elektronischer Bilder - Google Patents

Verfahren zur adaptiven Schärfung elektronischer Bilder

Info

Publication number
DE69028946D1
DE69028946D1 DE69028946T DE69028946T DE69028946D1 DE 69028946 D1 DE69028946 D1 DE 69028946D1 DE 69028946 T DE69028946 T DE 69028946T DE 69028946 T DE69028946 T DE 69028946T DE 69028946 D1 DE69028946 D1 DE 69028946D1
Authority
DE
Germany
Prior art keywords
image
high frequency
frequency components
electronic images
adaptively
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 - Fee Related
Application number
DE69028946T
Other languages
English (en)
Other versions
DE69028946T2 (de
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
Application granted granted Critical
Publication of DE69028946D1 publication Critical patent/DE69028946D1/de
Publication of DE69028946T2 publication Critical patent/DE69028946T2/de
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)
DE69028946T 1989-05-15 1990-04-30 Verfahren zur adaptiven Schärfung elektronischer Bilder Expired - Fee Related DE69028946T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE69028946D1 true DE69028946D1 (de) 1996-11-28
DE69028946T2 DE69028946T2 (de) 1997-04-17

Family

ID=23383043

Family Applications (2)

Application Number Title Priority Date Filing Date
DE199090890131T Pending DE398861T1 (de) 1989-05-15 1990-04-30 Verfahren zur adaptiven schaerfung elektronischer bilder.
DE69028946T Expired - Fee Related DE69028946T2 (de) 1989-05-15 1990-04-30 Verfahren zur adaptiven Schärfung elektronischer Bilder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE199090890131T Pending DE398861T1 (de) 1989-05-15 1990-04-30 Verfahren zur adaptiven schaerfung elektronischer bilder.

Country Status (9)

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

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US7391933B2 (en) * 2003-10-30 2008-06-24 Samsung Electronics Co., Ltd. Method and apparatus for image interpolation based on adaptive polyphase filters
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US7426314B2 (en) * 2004-07-30 2008-09-16 Hewlett-Packard Development Company, L.P. Adjusting pixels by desired gains and factors
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Also Published As

Publication number Publication date
EP0398861A2 (de) 1990-11-22
AU619971B2 (en) 1992-02-06
CA2013750C (en) 2000-12-12
AU5324490A (en) 1990-11-15
DE398861T1 (de) 1991-03-21
EP0398861B1 (de) 1996-10-23
JPH034680A (ja) 1991-01-10
GR900300197T1 (en) 1991-10-10
ATE144636T1 (de) 1996-11-15
JP3070860B2 (ja) 2000-07-31
CA2013750A1 (en) 1990-11-15
ES2020797A4 (es) 1991-10-01
DE69028946T2 (de) 1997-04-17
US5038388A (en) 1991-08-06
EP0398861A3 (de) 1992-10-07

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Legal Events

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8339 Ceased/non-payment of the annual fee