Drawing with circles... and its relation to image processing

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Ever wonder why people talk about "frequencies" and photographs/astrophotography images? Here's an intuitive explanation for what frequencies are! Image processing doesn't have to be difficult if you know the right terms!

Some great videos on Epicycles (i.e., the "orbits" in this video)
‪@3blue1brown‬    • But what is a Fourier series?  From h...  
‪@Mathologer‬    • Epicycles, complex Fourier series and...  
‪@GoldPlatedGoof‬    • Fourier Analysis For The Rest Of Us  


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00:00 Introduction
00:58 An Unexpected Visitor
02:08 Orbits and Their Shapes
04:00 The First Example
04:43 Brilliant Sponsorship
06:15 Getting to Square 1
07:00 Comparing Example 1 to Square 1
08:08 Fourier Transformations and Sine Waves
09:40 Functions and Astrophotography Images
10:36 Frequencies are Important!
11:40 The Galaxy Drawing
12:10 What a Fourier Transformation Looks Like
13:00 Destroying Low and High Frequency Information