Complex evaluation of Raman spectra using morphological filters: algorithms, software
implementation and experimental verification of background subtraction, cosmic ray removal and peak
recognition in SERS spectra of designer drugs

Vít Pavelka

Abstract:

We discuss the use of morphological operations, such as dilation, erosion,
opening as well as a compound operator P-function to provide baseline
correction, cosmic ray removal and peak recognition in Raman spectra. The
algorithms are implemented as Python scripts, permitting automated evaluation
or individual Raman spectra as well as Raman maps or time-resolved series which
is demonstrated by processed SERS spectra of designer drugs, such as mephedrone
and buphedrone.