I remember having such a nice discovery of "glitch art" when I was writing my own quantization algorithm (discrete cosine transform [and inverse]) and I had a bug but got nice looking outputs, like this one:
Not sure I remember what the bug was (probably some overflow/clipping issues when dealing with 8 bit numbers) but the original image (above) was unprocessed frame from a movie (I don't remember which one).
Once the bug was fixed, there was little difference (except for the blocking effect of quantization). Was quite surprised how such a small bug creates such drastic visual difference.
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[ 4.8 ms ] story [ 27.3 ms ] threadhttps://i.imgur.com/LMjg40v.png
Not sure I remember what the bug was (probably some overflow/clipping issues when dealing with 8 bit numbers) but the original image (above) was unprocessed frame from a movie (I don't remember which one).
Once the bug was fixed, there was little difference (except for the blocking effect of quantization). Was quite surprised how such a small bug creates such drastic visual difference.
I'd ask you how it's so, so fast but I doubt I'd grok the answer.