DE69222835T2 - Adressverminderungsschema zur Durchführung eines Rotationsalgorithmus - Google Patents

Adressverminderungsschema zur Durchführung eines Rotationsalgorithmus

Info

Publication number
DE69222835T2
DE69222835T2 DE69222835T DE69222835T DE69222835T2 DE 69222835 T2 DE69222835 T2 DE 69222835T2 DE 69222835 T DE69222835 T DE 69222835T DE 69222835 T DE69222835 T DE 69222835T DE 69222835 T2 DE69222835 T2 DE 69222835T2
Authority
DE
Germany
Prior art keywords
reduction scheme
rotation algorithm
address reduction
address
algorithm
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
DE69222835T
Other languages
English (en)
Other versions
DE69222835D1 (de
Inventor
Vinod Kadakia
Christine Kang
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of DE69222835D1 publication Critical patent/DE69222835D1/de
Application granted granted Critical
Publication of DE69222835T2 publication Critical patent/DE69222835T2/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
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/60—Rotation of a whole image or part thereof
    • G06T3/606—Rotation by memory addressing or mapping
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0207—Addressing or allocation; Relocation with multidimensional access, e.g. row/column, matrix
DE69222835T 1991-12-23 1992-12-21 Adressverminderungsschema zur Durchführung eines Rotationsalgorithmus Expired - Fee Related DE69222835T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/812,343 US5611001A (en) 1991-12-23 1991-12-23 Address reduction scheme implementing rotation algorithm

Publications (2)

Publication Number Publication Date
DE69222835D1 DE69222835D1 (de) 1997-11-27
DE69222835T2 true DE69222835T2 (de) 1998-05-20

Family

ID=25209294

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69222835T Expired - Fee Related DE69222835T2 (de) 1991-12-23 1992-12-21 Adressverminderungsschema zur Durchführung eines Rotationsalgorithmus

Country Status (4)

Country Link
US (1) US5611001A (de)
EP (1) EP0549309B1 (de)
JP (1) JP3124852B2 (de)
DE (1) DE69222835T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06164950A (ja) * 1992-11-26 1994-06-10 Mitsubishi Electric Corp 画像符号化方法および画像符号化／復号化方法
US6131152A (en) * 1996-05-15 2000-10-10 Philips Electronics North America Corporation Planar cache layout and instruction stream therefor
US5986672A (en) * 1997-10-14 1999-11-16 Minnesota, Mining And Manufacturing 3M Center Method and system for forming a rotated image on an imaging element using limited system resources
US6298166B1 (en) * 1998-03-30 2001-10-02 Seiko Epson Corporation Image transformations in the compressed domain
US20050275665A1 (en) * 2004-06-14 2005-12-15 Keith Kejser System and method for efficiently supporting image rotation modes by utilizing a display controller

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1547119A (en) * 1977-12-09 1979-06-06 Ibm Image rotation apparatus
US4370732A (en) * 1980-09-15 1983-01-25 Ibm Corporation Skewed matrix address generator
US4477802A (en) * 1981-12-17 1984-10-16 The Bendix Corporation Address generator for generating addresses to read out data from a memory along angularly disposed parallel lines
US4670856A (en) * 1985-03-07 1987-06-02 Matsushita Electric Industrial Co., Ltd. Data storage apparatus
JPH01220291A (ja) * 1988-02-29 1989-09-01 Nec Corp 半導体メモリ装置
US5111192A (en) * 1989-12-20 1992-05-05 Xerox Corporation Method to rotate a bitmap image 90 degrees

Also Published As

Publication number Publication date
EP0549309A1 (de) 1993-06-30
EP0549309B1 (de) 1997-10-22
US5611001A (en) 1997-03-11
JPH05307600A (ja) 1993-11-19
DE69222835D1 (de) 1997-11-27
JP3124852B2 (ja) 2001-01-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee