fft_tools Package¶
fft_tools
Package¶
convolve_nd
Module¶
correlate2d
Module¶
fast_ffts
Module¶
shift
Module¶
zoom
Module¶
scale
Module¶
upsample
Module¶
Fourier upsampling (or interpolation, scaling, zooming) is achieved via DFTs using a dot product rather than the usual fft, as there is (probably?) no way to perform FFTs with a different kernel.
This notebook demonstrates 1-d Fourier upsampling.