vspline-dev 0.3.1-1 (amd64 binary) in ubuntu bionic

 vspline aims to be as fast as possible, it's main focus is processing
 of bulk data, especially images. vspline can create b-splines of:
 .
  - real data types and their aggregates
  - coming in strided n-dimensional memory
  - spline order up to 24
  - arbitrary dimensions of the spline
  - with a reasonable selection of boundary conditions
  - with implicit or explicit scheme of extrapolation
 .
 on the evaluation side it provides:
 .
  - evaluation of the spline at point locations
  - evaluation of the spline's derivatives
  - fast specializations for nearest neighbour and linear interpolation
  - mapping of arbitrary coordinates into the defined range
  - evaluation of n-dimensional arrays of coordinates ('remap' function)
  - functor-based transform and apply functions
  - set of functional constructs to facilitate evaluation
 .
 data handling is done with vigra data types.
 vspline optionally uses horizontal vectorization with Vc.
 coefficient generation and remap routines are multithreaded.