826
Nightshade, the free tool that ‘poisons’ AI models, is now available for artists to use
(venturebeat.com)
this post was submitted on 21 Jan 2024
826 points (95.0% liked)
Technology
59374 readers
7244 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Explanation of how this works.
These "AI models" (meaning the free and open Stable Diffusion in particular) consist of different parts. The important parts here are the VAE and the actual "image maker" (U-Net).
A VAE (Variational AutoEncoder) is a kind of AI that can be used to compress data. In image generators, a VAE is used to compress the images. The actual image AI only works on the smaller, compressed image (the latent representation), which means it takes a less powerful computer (and uses less energy). It’s that which makes it possible to run Stable Diffusion at home.
This attack targets the VAE. The image is altered so that the latent representation is that of a very different image, but still roughly the same to humans. Say, you take images of a cat and of a dog. You put both of them through the VAE to get the latent representation. Now you alter the image of the cat until its latent representation is similar to that of the dog. You alter it only in small ways and use methods to check that it still looks similar for humans. So, what the actual image maker AI "sees" is very different from the image the human sees.
Obviously, this only works if you have access to the VAE used by the image generator. So, it only works against open source AI; basically only Stable Diffusion at this point. Companies that use a closed source VAE cannot be attacked in this way.
I guess it makes sense if your ideology is that information must be owned and everything should make money for someone. I guess some people see cyberpunk dystopia as a desirable future. I wonder if it bothers them that all the tools they used are free (EG the method to check if images are similar to humans).
It doesn’t seem to be a very effective attack but it may have some long-term PR effect. Training an AI costs a fair amount of money. People who give that away for free probably still have some ulterior motive, such as being liked. If instead you get the full hate of a few anarcho-capitalists that threaten digital vandalism, you may be deterred. Well, my two cents.
o7 General Effort