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2D & 3D Spectra of Savitzky-Golay Smoothing and Differentiation Filters

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2D & 3D Spectra of Savitzky-Golay Smoothing and Differentiation Filters

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18 Dec 2005 (Updated )

Spectral plots of Savitzky-Golay smoothing and differentiation filters

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Description

This zip-file contains two m-files that generate 2D spectral plots of smoothing and differentiation filters.

The files are useful for illustration and educational purposes.

Usage:

[w,A] = ztrans1d(h);
[u,v,A] = ztrans2d(h);
u,v,w = 1d and 2d frequencies up the folding frequency. A = amplitude density.
h = 1D and 2D filter coeffecients.

MATLAB release MATLAB 7.1.0 (R14SP3)
Other requirements None
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Comments and Ratings (1)
04 Jun 2010 Jose Ercolino

Where can I find the mentioned functions sgsf2d.m and 2sgdf2d.m.I've couldn't make it work with the coeficients generated by the sgolay function.

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