CA2102935A1 - Two Dimensional Scaler - Google Patents

Two Dimensional Scaler

Info

Publication number
CA2102935A1
CA2102935A1 CA2102935A CA2102935A CA2102935A1 CA 2102935 A1 CA2102935 A1 CA 2102935A1 CA 2102935 A CA2102935 A CA 2102935A CA 2102935 A CA2102935 A CA 2102935A CA 2102935 A1 CA2102935 A1 CA 2102935A1
Authority
CA
Canada
Prior art keywords
sum
coefficients
image
result signal
values
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
CA2102935A
Other languages
French (fr)
Other versions
CA2102935C (en
Inventor
Sanford S. Lum
Dwayne R. Bennett
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.)
ATI Technologies ULC
Original Assignee
ATI Technologies ULC
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 ATI Technologies ULC filed Critical ATI Technologies ULC
Publication of CA2102935A1 publication Critical patent/CA2102935A1/en
Application granted granted Critical
Publication of CA2102935C publication Critical patent/CA2102935C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4007—Interpolation-based scaling, e.g. bilinear interpolation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/28—Indexing scheme for image data processing or generation, in general involving image processing hardware

Abstract

The present invention relates to an image scaler comprised of apparatus for receiving coefficients a and b and image display values of adjacent pixels P
and Q respective of an image, apparatus for repeatedly operating on said coefficients and values for successive pixels according to the transform (see above formula) where SUM is the sum of the the coefficients, R is either zero or the accumulated SUM of an immediately preceding operation, A cc is an accumulated result signal, and apparatus for providing a first result signal as an output coefficient word for controlling the display of each of adjacent pixels.
CA002102935A 1993-09-10 1993-11-12 Two dimensional scaler Expired - Lifetime CA2102935C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/118,896 US5764238A (en) 1993-09-10 1993-09-10 Method and apparatus for scaling and blending an image to be displayed
US08/118,896 1993-09-10

Publications (2)

Publication Number Publication Date
CA2102935A1 true CA2102935A1 (en) 1995-03-11
CA2102935C CA2102935C (en) 2000-01-25

Family

ID=22381408

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002102935A Expired - Lifetime CA2102935C (en) 1993-09-10 1993-11-12 Two dimensional scaler

Country Status (2)

Country Link
US (1) US5764238A (en)
CA (1) CA2102935C (en)

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US8140975B2 (en) 2005-01-07 2012-03-20 Apple Inc. Slide show navigation
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US7752556B2 (en) * 2005-10-27 2010-07-06 Apple Inc. Workflow widgets
US7707514B2 (en) 2005-11-18 2010-04-27 Apple Inc. Management of user interface elements in a display environment
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US8155682B2 (en) * 2006-05-05 2012-04-10 Research In Motion Limited Handheld electronic device including automatic mobile phone number management, and associated method
US8869027B2 (en) 2006-08-04 2014-10-21 Apple Inc. Management and generation of dashboards
US20080168367A1 (en) * 2007-01-07 2008-07-10 Chaudhri Imran A Dashboards, Widgets and Devices
US8954871B2 (en) 2007-07-18 2015-02-10 Apple Inc. User-centric widgets and dashboards
US8667415B2 (en) 2007-08-06 2014-03-04 Apple Inc. Web widgets
US8156467B2 (en) * 2007-08-27 2012-04-10 Adobe Systems Incorporated Reusing components in a running application
US8176466B2 (en) 2007-10-01 2012-05-08 Adobe Systems Incorporated System and method for generating an application fragment
US9619304B2 (en) 2008-02-05 2017-04-11 Adobe Systems Incorporated Automatic connections between application components
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Also Published As

Publication number Publication date
CA2102935C (en) 2000-01-25
US5764238A (en) 1998-06-09

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