Best demonstration of how JPEG uses Fourier Synthesis
This demonstrates the inverse Fourier transform 'in the real world' showing how a non-periodic arbitrary shape can be reconstructed from pure sinusoids.
Creted by PJT
Link to there github
This demonstrates the inverse Fourier transform 'in the real world' showing how a non-periodic arbitrary shape can be reconstructed from pure sinusoids. PJT or PUMA_Microscope
Examplination from the reddit comments: (chatgpt summarized)
Sound is made of waves that go up and down. Even non-repeating sounds, like saying "a," are made of many different waves with different speeds (frequencies) and sizes (amplitudes). The Fourier transform is a math tool that breaks down a complicated sound into its simple waves. It's like saying the sound "a" is made of a loud 100Hz wave, a quieter 110Hz wave, and so on.
What u/PUMA_Microscope did is similar but with a two-dimensional image. Each plastic card represents a wave, and when you put them together, they form an image, like how different sound waves create a complex sound. - s4b3r_t00th (but chatgpt summary, og here)
full teaching video (about 31 minutes)
What does this have to do with JPG compression?
Great video describing how jpg uses Fourier synthesis
Guy also made a 3D PRINTED MICROSCOPE
TadPathFound on reddit here
Fourier synthesis of a letter 'A' using transparent plastic harmonics over a backlight
by u/PUMA_Microscope in Damnthatsinteresting
Author
by oran collins
github.com/wisehackermonkey
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