What's the Best Way to Destroy a PNG File?

After exploring JPEG glitching I decided to take a look into PNGs. This was a significantly harder nut to crack, but I think the developed techniques offer a rather unique way of glitching files. I haven't seen anyone talk about the custom filter idea I discuss in the second half of the video (though I wouldn't be surprised if someone has thought of it), and I thought the customs filters I made were pretty fun.

https://ucnv.github.io/pnglitch/ - UCNV's "The Art of the PNG Glitch".
https://github.com/ucnv/pnglitch/ - UCNV's Ruby library for glitching PNGs.

https://patorjk.com/image-glitcher/ - My Image Glitcher app.
https://github.com/patorjk/png-destruction-animation - If you prefer JavaScript, this is a script I created for PNG glitching (basically to make the assets for this video). It's allows for a little more fine tuning than my app. You can also create custom filters if you want (see the README).

0:00 Intro
0:32 PNG file format
0:59 CRCs
1:27 The art of the PNG glitch
2:02 Sub filter
2:24 How to glitch with filters
2:39 Incorrect filter glitch
3:13 Scan line glitches
3:55 Custom filter glitches
4:18 Custom filter glitch examples
5:02 Animated PNG glitches
5:18 Conclusion

All photography (unless mentioned in the CC section) is done by me (https://flickr.com/photos/40423570@N07/albums).

Create Commons Stuff:
https://commons.wikimedia.org/wiki/Category:Animated_PNG_files#/media/File:3d2.png
https://commons.wikimedia.org/wiki/Category:Animated_PNG_files#/media/File:APNG_bouncing_beach_ball_(45px).png
https://en.wikipedia.org/wiki/GIF#/media/File:Rotating_earth_(large).gif
https://www.flaticon.com/free-icons/background - Background icon created by Freepik - Flaticon
https://www.flaticon.com/free-icons/data-compression - Data compression icon created by Freepik - Flaticon
https://www.flaticon.com/free-icons/png - Png icon created by Dimitry Miroliubov - Flaticon
https://www.flaticon.com/free-icons/fix - Fix icon created by Yogi Aprelliyanto - Flaticon
https://www.flaticon.com/free-icons/ui Ui icon created by surang - Flaticon
https://commons.wikimedia.org/wiki/Category:GIF_files#/media/File:Gif-animado-.gif - Animated head
Aitech by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/

Видео What's the Best Way to Destroy a PNG File? канала Patrick Gillespie