DerivativeFilter

DerivativeFilter[data,{n1,n2,…}] computes the nith derivative of data at level i.

DerivativeFilter[data,{n1,n2,…},σ] computes the derivative at a Gaussian scale of standard deviation σ.

DerivativeFilter[data,{der1,der2,…},…] computes several derivatives der1, der2, ….

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