r.resamp.bspline
Performs bilinear or bicubic spline interpolation with Tykhonov regularization.
Raster (r.*)
ParameterRaster|input|Input raster layer|False
ParameterRaster|mask|Name of raster map to use for masking. Only cells that are not NULL and not zero are interpolated|True
ParameterSelection|method|Sampling interpolation method|bilinear;bicubic|1|False
ParameterNumber|ew_step|Length (float) of each spline step in the east-west direction|0.0|None|1.0|True
ParameterNumber|ns_step|Length (float) of each spline step in the north-south direction|0.0|None|1.0|True
ParameterNumber|lambda|Tykhonov regularization parameter (affects smoothing)|0.0|None|0.01|True
ParameterNumber|memory|Maximum memory to be used (in MB). Cache size for raster rows|10|None|300|True
*ParameterBoolean|-n|Only interpolate null cells in input raster map|False|True
*ParameterBoolean|-c|Find the best Tykhonov regularizing parameter using a "leave-one-out" cross validation method|False|True
OutputRaster|output|Resampled BSpline
OutputVector|grid|Interpolation Grid