Fourier Analysis: Drawing Llamas with Circles ¶ The Fourier transform is a method of transforming an input signal from the time domain to the frequency domain. It has a huge range of applications, for instance audio engineers can pick out individual undesired frequencies in a song with the Fourier transform and then get back the sound without that frequency using the inverse Fourier transform.  We can make use of the Fourier transform in digital image processing for filtering images, like gaussian blurs and compressing images using the JPEG format. Lastly, as this article will go into: drawing! What am I talking about by drawing ? Well, the idea is that we can take a path that represents something such as a fish, the pi symbol, or just about anything else we can draw by putting pencil lead down on a piece of paper and sketching a picture without lifting the pencil until completion.…