Utillity class for solving the normalised cross correlation given the current synthetic image
and the derivatives with respect to each model parameter.
A fuction to calculate the Delaunay triangulation of the n points
points[ 0 ], ..., points[ n - 1 ]
It takes 6 arguments:
n the number of points
points an array, each element of which is a Point2D.Float.
Replace two real arrays with their Fourier Transforms
The complex left hand side of the transform is returned only
the full transform can be recovered using symmetry