FFT Maker¶

The FFT Maker calculates power spectrums of input images.

Required bindings:

<highlights>
<simplelist>
<member> Acquisition - (AcquisitionImagePublishEvent) -> FFT Maker</member>
</simplelist>
</highlights>

There are two FFT Maker nodes in MSI, Exposure FFT and Focus FFT. Both of these FFT Maker
nodes need to be bound with events from different acquisition nodes. Exposure FFT (with a hint
from its name) is bound to the Exposure (Acquisition) node. Likewise, Focus FFT is bound to
the Focus node (that has Acquisition node behavior embedded within it).

Settings¶

• Calculate FFT and save to the database = when enabled, the input image will have
  its FFT calculated and existence stored in the database

• Mask radius "1" % of image width = this percentage refers to how much of the
  center of the FFT (with the high intesity base frequency) will be masked out in order
  to make the rest of the FFT features more visable on the computer screen.

• Images in Database: Find images in this session with label "" = *Currently this
  feature is not used.

< The EM node | Focuser >