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Transform


Unit:SDL_wavelet
Class:TWavelet1D
Declaration:procedure Transform (Level: integer);

The method Transform performs a multi-level one-dimensonal wavelet analysis using the wavelets specified by the property WaveletFamily. The parameter Level defines the level to which the analysis is performed. It may take values between 1 and log2(Size). The analysis is an in-place analysis and stores the result in the data buffer, thus overwriting the original data.

The structure of the decomposition is shown in the following image (a 3-level decomposition in this example):

Example: This method is used in the following example program (see http://www.lohninger.com/examples.html for downloading the code): waveletfilter, waveletcoeff



Last Update: 2012-Oct-20