The Art of PNG Glitch (2015)

Remember reading this article in 2015 and then trying to do some simple glitching using C. Simply inserting an additional NULL for a specific RGB range will cause all channels written after it to become misaligned and will create quite an interesting output image (similar to figure B.14 in the article). I.e. an R component will be written into G's place, G will be written into B's place etc.. It goes along these lines: for (int i = 0; i…

I was always interested in glitching images - but was frustrated with the checksum/read errors. I took a slightly different approach with JPGCrunk (http://www.mrspeaker.net/dev/jpgcrunk/): instead of modifying the image then trying to display it, randomly mess with the internals of the encoder (I used a JavaScript implementation so it was easy to modify https://github.com/mrspeaker/jpgcrunk/blob/master/scripts/en...) This way the "glitching" happens inside the encoder algorithm, and then there's nothing to have to…