R. A. Dehi @radehi@social.cleverlibre.org

3D Bowl for the #BBCMicro / #AcornElectron. 447 bytes of compressed code, 539 bytes non-compressed.

Implementing a New Memory Safety Approach, Part 1 - Evan Ovadia @ Vale Lang: https://verdagon.dev/blog/making-regions-part-1-human-factor

The Yuv4Mpeg2 format (.Y4M) is a simple video format w/ an ASCII header and no compression.

I dissected a grayscale Y4M to first show the file structure, then a YUV (4:4:4) with a tiny 3x3 YUV plane for Y=0.5 as a small introduction to the YUV color space.

@chribonn @NorCal_Lynne @jeffjarvis @tomwatson Your analogy is wrong.

You don't need to understand PAL-M to watch TV usefully, but you do need to understand that different TV channels are operated by different companies, which are granted government monopolies on transmitting on those channels, and that they're heavily regulated and mostly ad-funded.

If you're sharing photos of mass graves in Ukraine or taking part in protests in Iran, you probably need to know if your instance is run by the Russian, Ukrainian, or Iranian government. You definitely need to understand that it's a possibility, and that the instance owner can read your DMs, trace your IP address, and take over your account.

Keeping activists, journalists, and their sources safe is more important than being appealing to the masses.

Just seen Twitter described as $8chan and now I can’t unsee it.

(H/t @gossithedog)

This looks like an important report:

Against Parasite Publishers: Making Journals Free
https://zenodo.org/record/7212922/files/Against_Parasite_Publishers__Making_Journals_Free.pdf

It's interesting that in 1886 the Berne Convention said articles "may be reproduced in original or in translation in other countries of the Union, unless the authors or publishers have expressly forbidden it." But in 1908 the rule was flipped - so that articles "may not be reproduced in the other countries without the consent of the authors".

Excited to share the Complex AutoEncoder (CAE):

✨ The CAE decomposes images into objects without supervision by taking inspiration from the temporal coding patterns found in biological neurons. ✨

Now accepted at TMLR!

📜 arxiv.org/abs/2204.02075

with @phillip_lippe, Maja Rudolph, and Max Welling

1/5

You can define operations on [-∞,∞) depending on a positive real number called the 'temperature' 𝑇 in such a way that:

1) for any 𝑇 > 0, you get a rig isomorphic to [0,∞) with its usual + and × . (A 'rig' is a ring without negatives.)

2) in the limit 𝑇→ 0, you get a version of the 'tropical rig', where addition is min and multiplication is + on [-∞,∞).

Yeah, the terminology is bad: the 'tropical rig' is a low-temperature limit! They should have called it the 'arctic rig'.

(1/n)

@RaphaelWimmer @thc you might also like https://sadservers.com/ - you get tossed into a shell of a malfunctioning server and need to figure out the problem.

How to host your own Mastodon instance on a #RaspberryPi:

https://www.raspberrypi.com/news/host-your-own-mastodon-instance-on-a-raspberry-pi/

Thanks to @petestevens at @beasts for this brilliant step-by-step guide.

For anyone curious here is the very first toot I ever made on QOTO:

https://qoto.org/@freemo/100335839534486799

Just something I wrote that might be interesting to those who like #math and #literate_programming: I explained Bill Gosper's algorithm for doing arithmetic with continuous fractions. Written with Emacs's org-mode.

https://hsinhaoyu.github.io/cont_frac/

@radehi @cemerick You're right, looks like ColorQuantize dithers by default. Here it is with and without dithering:

hi friends, there will be a memorial for Peter Eckersley at the Internet Archive in SF on March 4 2023: https://www.facebook.com/events/2366523486831491/. please spread the word to his friends who aren't on Facebook!

@sachac @lxo This is really amazing. You implemented not only a waveform view but about half of a nonlinear video editor in #Emacs Lisp. I've used Emacs for years and had no idea this was even possible.