fourier.me

Try it out here! https://fourier-me.vercel.app/

In this project I am building a tool that takes your photos and turns them into Fourier Epicycle Drawings.

Not getting it ? Here's the inspiration: https://youtu.be/r6sGWTCMz2k

How it works ?

Here's a TLDR of how it works:

1. Takes any image(jpg/jpeg/png...etc) as input.
2. Resizes this image to feasible proportions.
3. Uses ControlNet's LineartDetector Model to find the outline of image.
4. From this image, it gets the coordinates of the outline pixels.
5. Using the Christofides' algorithm, it finds the shortest closed tour of the points.(doing this is important for the epicycles to work as intended)
6. Converts these points into complex numbers.
7. Takes the Complex Discrete Fourier Transform of these points(using numpy's fft(fast fourier transform) function).
8. Saves the fft data along with other details like frequency, amplitude in a csv file.
9. Now comes the animation part, the manim code reads this csv file and makes the corresponding rotating arrows and circles and animates them.

Sample Renders

How to run locally

git clone https://github.com/shlok-007/fourier.me.git
cd fourier.me
mkdir images
mkdir arrow_data
cd Manim
pip install requirements.txt

If you don't have chocolatey installed, follow this to install it.

Now,

choco install manimce

Now, you can run the main.py file by giving it the path to your desired image as input.

python main.py path/to/image

For example:

python main.py ../sample_images/robot.png

You can checkout and try varying the parameters declared at the top of the files getLineArt.py, getVectors.py, and epicycle_manim.py to control various aspects of the process. Also, you can checkout the manim.cfg file for varying the parameters related to animation rendering.