comp.lang.idl-pvwave archive - RDF feed
type: channel
description: Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
items: Fast Cosine Transform Routine

Fast Cosine Transform Routine
type: item
description: Hi, I use IDL a lot and currently have the need to perform 2D cosine transforms. I have implemented this using the FFT command in IDL. (How to do a cosine transform using the FFT is described in "Numerical Recipes in C"). I am not happy with this approach and would prefer to use a more direct method. I can code the cosine transform into IDL but first I would like to see if anyone knows of an IDL routine that already exists for 2D cosine transforms. Thanks -- ********************************************************* ********************************************************* Paul R. Harvey Ph.D. home email:- harveypr@isracom.co.il work email:- paul@mri.elscint.co.il home page :- http://www.geocities.com/CapeCanaveral/9469/ ********************************************************* *********************************************************
creator: Paul R. Harvey
date: 1998-05-22T07:00:00-00:00