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# scipy.signal.cspline2d

`scipy.signal.``cspline2d`(input {, lambda, precision}) → ck

  Description:

  > Return the third-order B-spline coefficients over a regularly spacedi input grid for the two-dimensional input image. The lambda argument specifies the amount of smoothing. The precision argument allows specifying the precision used when computing the infinite sum needed to apply mirror- symmetric boundary conditions.