[Rtk-users] Flat Field Image Correction

[AMJAD N]

Hello users,

I have read Flat field image correction using dark ( projection with
CT-off, detector-on ) and bright ( projection with CT-on, detector-on and
no object in between CT and detector ) images procured before scanning any
substance.

correction = log (bright image) - log ( projection-dark image ); // for all
projections

This pre-processed images are then fed to FDK algorithm.

Did someone here tried this method? If I want to implement this, do I have
to write a separate class for this? Any suggestions for that?

PS: Presently I am using LUTbasedVariableI0RawToAttenuationImageFilter and
I am getting reasonably good output. When i implemented FDK in MATLAB i
used this flat field correction and result was good. So I want to know the
impact with RTK.

Thanks and Regards,

AMJAD N
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