out = qspline2d(input, lambda=0.0, precision=-1.0)
Return the second-order B-spline coefficients over a regularly spaced input grid for the two-dimensional input image.
The input signal.
Specifies the amount of smoothing in the transfer function.
Specifies the precision for computing the infinite sum needed to apply mirror- symmetric boundary conditions.
The filtered signal.
Coefficients for 2-D quadratic (2nd order) B-spline:
Examples are given in the tutorial <tutorial-signal-bsplines>
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