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FRANA - Frame analysis operator

Usage

c=frana(F,f);

Description

c=frana(F,f) computes the frame coefficients c of the input signal f using the frame F. The frame object F must have been created using frame or framepair.

If f is a matrix, the transform will be applied along the columns of f. If f is an N-D array, the transform will be applied along the first non-singleton dimension.

The output coefficients are stored as columns. This is usually not the same format as the 'native' format of the frame. As an examples, the output from frana for a gabor frame cannot be passed to idgt without a reshape.

Examples:

In the following example the signal bat is analyzed through a wavelet frame. The result are the frame coefficients associated with the input signal bat and the analysis frame 'fwt':

f = bat;
w = 'sym8';
J = 7;
F = frame('fwt', w, J);
c = frana(F, f);
% A plot of the frame coefficients
plotframe(F, c, 'dynrange', 100);