Perform analysis of fluctuation electron microscopy (FEM) data as outlined in:
T. L. Daulton, et al., Ultramicroscopy 110 (2010) 1279-1289. (doi:10.1016/j.ultramic.2010.05.010)
Analysis returns a dictionary containing:
the normalized variance of the annular mean (V-Omegak)
mean of normalized variances of rings (V-rk)
normalized variance of ring ensemble (Vrek)
the normalized variance image (Omega-Vi)
annular mean of the variance image (Omega-Vk)
Calculations rely heavily on the fpd_data_processing radial_integration function. This function has been slightly modified so as to allow a normalized output (default) and a non-normalized output.
Processing of lazy signals is quite slow especially for large datasets. This can very likely be further optimized.