varg gif response #11

New Issue

adam · 2023-05-30T23:52:14-04:00

adam commented

2023-05-30 23:52:14 -04:00

joe loves his varg gif, right?

imgur has repost-detection bot, which used a pretty simple idea: grab image, crush to grayscale, crush to very low res, checksum.

for video, that could be done for every frame. joe's favorite gif is 56 frames, right?

grab gif. Split frames. If frames < some threshold, like 500, continue.
checksum each frame.
if majority of checksums match a known varg-gif's checksums, mostly in the same order (*), probably same image. Respond with snark.

should I collect known varg gifs?

should I recalculate gifs? I could use ffmpeg to change its framerate: ffmpeg -i ./vargvikerness-smile.gif -filter:v fps=fps=5 varg.gif. don't ask me how this actually doubled the file size.

joe loves his varg gif, right? imgur has repost-detection bot, which used a pretty simple idea: grab image, crush to grayscale, crush to very low res, checksum. for video, that could be done for every frame. joe's favorite gif is 56 frames, right? grab gif. Split frames. If frames < some threshold, like 500, continue. checksum each frame. if majority of checksums match a known varg-gif's checksums, mostly in the same order (\*), probably same image. Respond with snark. should I collect known varg gifs? should I recalculate gifs? I could use ffmpeg to change its framerate: `ffmpeg -i ./vargvikerness-smile.gif -filter:v fps=fps=5 varg.gif`. don't ask me how this actually doubled the file size.

adam added the

Feature

label 2023-05-30 23:52:14 -04:00

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