Fourier spectrums contain important information about surface structures and
distortion phenomena, but they can be difficult to interpret.
By a sub-pixel Fourier algorithm SPIPô provides accurate information about selectable
Fourier peaks, including wavelengths and the corresponding frequencies in Hz.
This is particularly useful for diagnosing noise and vibration problems.
By defining a pair of Fourier peaks associated with the reciprocal unit cell,
you can calculate the spatial unit cell automatically.
It is possible to edit the spectrum, perform Fourier filtering and learn how
Fourier components correspond to image structures.
Thus, in addition to being a strong analytical tool, the Extended Fourier Analysis
Module can bring new understanding to the relation between the spatial and the
Fourier domain and serve as an educational toolbox.