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spmup_spectral
Cyril Pernet edited this page Oct 5, 2022
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spmup_spectral.m computes the spatial power spectrum (i.e. abs(fft)^2) per slice and average power values of all the same frequencies
[f,outliers] = spmup_spectral
[f,outliers] = spmup_spectral(P)
[f,outliers] = spmup_spectral(P,M)
[f,outliers] = spmup_spectral(P,M,'figure','on/save/off')If called with no input, the user is prompted. P is the 3D volumes / 4D volume name.
It is possible to mask a binary mask M, overwise one is computed using spmup_auto_mask. Finally, a figure can be generated.
f is the average frequency power for each image and slice
outliers is a binary flagging outliers per volume and slice over the averaged frequencies