Tip #1: Limited Color PalettesSave your images as BMPs or GIFs, and set the amount of colors to whatever suits your image - can be 256 colors, 128 colors, 64 colors... the more dithering you can see, the better!
I couldn't find the setting to set the number of colours so I just used posterize.
That is a cute cat.
is that MOOT?
I wrote some simple programs that call the libjpeg-turbo library to extract and replace the DCT coefficients of JPEG fileshttps://pastebin.com/w70cvbCuhttps://pastebin.com/NU2GkngWand now I'm looking for interesting things to do with them other than what I did over at https://desuarchive.org/qa/thread/2411811/#2419006First one, I took a random image and I was going to zero out all the DC DCT coefficients, but I made a mistake and only zeroed the lower byte. Still ended up with an interesting effect, though.extractdct < source.jpg > source.dctxxd -p -c 128 source.dct | sed 's/^../00/' | xxd -p -r > out.dctreplacedct out.dct < source.jpg > out.jpg
>>5What I originally intended to do:extractdct < source.jpg > source.dctxxd -p -c 128 source.dct | sed 's/^..../0000/' | xxd -p -r > out2.dctreplacedct out2.dct < source.jpg > out2.jpg
>>6With the upper byte zeroed instead:extractdct < source.jpg > source.dctxxd -p -c 128 source.dct | sed -r 's/^(..)../\100/' | xxd -p -r > out3.dctreplacedct out3.dct < source.jpg > out3.jpg
Found another interesting one from amplifying the DCT values (with limits on the range).dcttransform.sh '[max(-256,min(256,16*n)) for n in dct]' source.jpg > out5.jpgusinghttps://pastebin.com/5KNeYnhzhttps://pastebin.com/VPmKzuha
>>4That's kurt cobain
Found another one.dcttransform.sh '[dct[(3*i)%len(dct)] for i in range(len(dct))]' /tmp/3.jpg > /tmp/33.jpg
dcttransform.sh '[dct[(7*i)%len(dct)] for i in range(len(dct))]' /tmp/b7.jpg > /tmp/b77.jpg
>>8for more convenience I put it athttps://gitgud.io/dcttransform/dcttransform
ｷﾀ━━━(ﾟ∀ﾟ)━━━!!
I have an idea. Distort an image earthbound style but used weierstrass fractals or blancmange curves instead of sine waves.
All I know how to do is databend
one time this happened with chaospro
Used the JPEG tweaking programs to make pic related which decodes to different images depending on how you view it.commands used to generate: https://pastebin.com/Zyc3jqBq
>>18that's rad
Increased the number of images.https://pastebin.com/LX7QgqdW
>>21Cool, I saw these on /qa/. Didn't know you made a script for it
