Shawn Presser
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Let's play with FFT! A thread: (Actually, this is part 1. TIL twitter has a tweet limit, so this tweet chain ends rather abruptly. Stay tuned for part 2, and consider joining my patreon: https:// patreon.com/shawwn )pic.twitter.com/hkGjB3kRsu
First, let's adopt a cat: https:// i.imgur.com/lnJNjXH.png We convert the cat to greyscale, then scale it from [0 .. 255] to [0.0 .. 1.0].pic.twitter.com/HI0Omr8Gw0
Then let's take the FFT of the cat. So, there's already a lot to unpack here. What's an FFT, and why do we care? What are those arrows and colors? Why is it mostly black?pic.twitter.com/z2o2qmZoEL
