ITK function for spline smoothing (a.k.a csaps in matlab)

[fmarcano]

Hi people,
I would like to know wether there is a function in ITK library for spline smoothing, working the same way matlab’s “csaps” does, specifically under csaps(x,y,p,[ ],w) syntax (weighted smoothing, complex number input/output , etc, see https://www.mathworks.com/help/curvefit/csaps.html) . Thank you!

[matt.mccormick]

Hi @fmarcano,

Welcome to ITK!

Yes, of interest are the classes:

• itk::BSplineScatteredDataPointSetToImageFilter
• itk::N4BiasFieldCorrectionImageFilter

More information can be found in the corresponding Insight Journal articles:

• N-D C^k B-Spline Scattered Data Approximation
• N4ITK: Nick’s N3 ITK Implementation For MRI Bias Field Correction

Hope this helps,
Matt