https://phqb.github.io/circle_drawing/

Choose a picture [                    ]
[ ] Follow the end point?
Center
Pause/Resume
[0                   ]

What is it?

This application draws anything using orbiting circles. Here is an
example:
https://www.youtube.com/watch?v=QVuU2YCwHjw


How does it work?

 1. You input an image.
 2. The application performs edge detection and converts detected
    edges to lines.
      + A sub-pixel edge detection algorithm ^[1] is used in this
        step.
 3. The application makes lines into an one-liner line.
      + The details of this step can be found in the source code.
 4. The application draws the one-liner line using orbiting circles.
      + The details of this step are explained in this video ^[2].

Source code

https://github.com/phqb/circle_drawing/

References

[1] Rafael Grompone von Gioi, and Gregory Randall, A Sub-Pixel Edge
Detector: an Implementation of the Canny/Devernay Algorithm, Image
Processing On Line, 7 (2017), pp. 347-372. https://doi.org/10.5201/
ipol.2017.216
[2] But what is a Fourier series? From heat flow to drawing with
circles | DE4 https://www.youtube.com/watch?v=r6sGWTCMz2k