Remove Spikes

This example shows how to remove spikes (e.g. from cosmic rays impacting a CCD detector) from a dataset.

Load the data

import lumispy as lum

cl1 = lum.data.asymmetric_peak_map()
cl1 = cl1.remove_background(signal_range=(550.0, 620.0), background_type="Offset")
cl1 = cl1.isig[:-3]

Display the original data

cl1.inav[29, 0].plot()

As seen there is a heavy spike, so lets remove it (in an interactive environment, the parameters for spike identification can be adapted and the proposed removal previewed and confirmed for each identified spike individually, see hyperspy.api.signals.Signal1D.spikes_removal_tool()).

cl1.spikes_removal_tool(interactive=False)

<hyperspy.signal_tools._spikes_removal.SpikesRemoval object at 0x76b2eb07fd90>

Display cleaned data

cl1.inav[29, 0].plot()