Node usage

The WaveletDenoise node performs noise removal using the fast wavelet transform[1,2] on a matrix of profiles. Here are the node arguments:

Input ports:

W: a matrix containing the wavelet coefficient vector for each profile (e.g. infrared spectrum) in each row. So this node requires that a previous wavelet transform has been performed (using e.g. the WaveletTransform or WaveletTransformb nodes). The denoising will be performed by changing the values of the individual wavelet coefficients at different scales.

Input arguments:

Output ports:

Wh: a matrix containing the denoised wavelet coefficient vector for each profile (e.g. infrared spectrum) in each row

SEE ALSO: WaveletDenoiseX which is very similar to this function, but differs in the way the the data to be denoised are presented to the denoising methods. In WaveletDenoiseX the raw raw data matrix rather than the wavelet transform coefficients are used



Source: This node is using tools from the WavelLab toolbox which can be downloaded from http://www-stat.stanford.edu/~wavelab/

Bjørn Kåre Alsberg 2006-04-06