In this chapter, we covered the usage of one and multi-dimensional Fourier transformations and how they are applied in signal processing. You now understand the implementation of the discrete Fourier transform in NumPy, and we did a performance comparison between our manual implemented script with NumPy built-in modules.
We also accomplished a real-world application of image interpolation, and we got a plus one for knowing some basics of the matplotlib
packages.
In the next chapter, we will see how to distribute our code using the numpy.distutils()
submodules.