Article View: comp.multimedia
Article #928Re: affine transform
From: John Clark
Date: Wed, 30 Jan 1991 19:36
Date: Wed, 30 Jan 1991 19:36
19 lines
1282 bytes
1282 bytes
In article <1991Jan22.220948.12523@pandora.matrox.com> ltran@pluton.matrox.com (Linh TRAN) writes: + + I heard recently about a new class of transform (at +least new for image compression purpose). My questions are: It sounds like the Iterated Function Systems. There is a book by an author named Beardsley(sp). I'm at work now, but will post the full title and ISBN later today(1/30/90). Briefly, an IFS is a set of coefficients for an affine X-form and an interation sequence which will 'recreate' an area of an image. The number of coefficients is small relative to the area of the image being recreated, hence compression. The system does not create exact fidelity but recreates the 'visual' impression of the original to varying degrees of fidelity. -- John Clark jclark@ucsd.edu
Technical Details
Message-ID:
<16177@sdcc6.ucsd.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!ucsd!sdcc6!jclarkReferences:
<1991Jan22.220948.12523@pandora.matrox.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!ucsd!sdcc6!jclark From: jclark@sdcc6.ucsd.edu (John Clark) Newsgroups: comp.multimedia Subject: Re: affine transform Keywords: compression, affine transform Message-ID: <16177@sdcc6.ucsd.edu> Date: 30 Jan 91 19:36:30 GMT References: <1991Jan22.220948.12523@pandora.matrox.com> Organization: University of California, San Diego Lines: 19