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Re: wavelet [message #24494 is a reply to message #19573]

Tue, 03 April 2001 20:34

Wayne Landsman
Messages: 117
Registered: January 1997

Senior Member

JMD wrote:

> Hi,
>
> I want to use wavelet on IDL without IDL wavelet toolbox.
>
> Where can I find a free IDL wavelet toolbox?
>

Um, I'm not sure whether I should be advertising this, but at least some
of the low-level procedures in $IDL_DIR/lib/wavelet/source do not
require a toolkit license. You just won't be able to use any of the GUI
features.

WV_CWT - Compute the continuous wavelet transform for one-dimensional
arrays.
WV_DENOISE - Use the wavelet transform to filter a 1 or 2-dimensional
array.
WV_FN_COIFLET - Return the Coiflet wavelet coefficients.
WV_FN_DAUBECHIES - Return the Daubechies wavelet coefficients.
WV_FN_GAUSSIAN - Return the Gaussian-derivative wavelet.
WV_FN_HAAR - Return the Haar wavelet coefficients.
WV_FN_MORLET - Return the Morlet wavelet.
WV_FN_PAUL - Return the Paul wavelet.
WV_FN_SYMLET - Return the Symlet wavelet coefficients.

Also the "Numerical Recipes" implementation of some Daubechies wavelet
coefficients has long been available as the intrinsic function WTN.

--Wayne Landsman landsman@mpb.gsfc.nasa.gov

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[Message index]

		wavelet compressed bitmap image format By: dmarshall on Tue, 04 April 2000 00:00
		Re: wavelet compressed bitmap image format By: marc schellens[1] on Thu, 06 April 2000 00:00
		Re: wavelet By: Wayne Landsman on Tue, 03 April 2001 20:34
		Re: wavelet By: wmconnolley on Tue, 03 April 2001 13:01
		Re: wavelet By: Jaco van Gorkom on Tue, 03 April 2001 02:06

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