The InterpolationKernels package provides a library of interpolation kernels for Julia. As suggested by their name, interpolations kernels are mostly designed for interpolation, they can be thought as smart functions that know their derivative and that implement optimized computation of interpolation weights.

You may have a look at some sections of the the latest documentation:

• List of provided kernels.
• Principles of interpolation.

The InterpolationKernels package is used by:

• FineShift, a Julia package for fast sub-sample shifting of arrays.

• LinearInterpolators which implements various interpolation methods for Julia as linear mappings.