Fourier-transform for time series : about image convolution and scipy

Fourier-Transform for Time Series: About Image Convolution and SciPy

Fourier-transform convolution also applies to images

This post is the second of the Fourier-transform for time series, check the first here:

Fourier transform for time-series: fast convolution explained with numpy

Quick review of the previous post

In the first post, I explained how the Fourier-transform can be used to convolve signals very efficiently. I showed that convolution using the Fourier-transform in numpy is many orders of magnitude faster that the …

convolution fourier-transform numpy scipy time-series-analysis