Page says "font" but means "obfuscated text in video".
Ghost Font: A font that humans can read but AI cannot
91–100 of 188 posts
Re: Ghost Font: A font that humans can read but AI cannot
#92Earlier quoted context omitted.
If you take a frame you see it's neither random nor dots: https://i.imgur.com/CgtyGjl.png From a single frame you can definitely identify boundaries because the dots are sliding and get truncated.
Exactly. It's a good idea, badly executed.
Maybe not so well explained, by picking the default intended text presented to be the same as the decoy text. It took me also some time to realise what was going on, but the execution is fine otherwise.
So there are two texts, one decoy (which you can barely see in a single frame but becomes more clear if you average between frames) and an actual text, which disappears in single frames or averaged ones.
Re: Ghost Font: A font that humans can read but AI cannot
#93I had thought to use homographs. Sadly, all the models I tried were able to decode something like: "ﾌㄖ乇ㄚ ᗪㄖ乇丂几'ㄒ 丂卄卂尺乇 千ㄖㄖᗪ" However, I have noticed that voice assistants have a hard time understanding homonyms. Saying "bow" (as in to bow one's head) is often stored as "bow" (as in a bow and arrow). I wonder if there's a sufficiently complex sentence which is intelligible to humans but not to machines?
There's garden path sentences, where the sentence is phrased in such a way as to cause you to misparse the sentence when you first read (e.g. "The old man the boat"); but those typically confuse humans (I'm not sure how effective they are on LLMs).
Relevant xkcd: https://xkcd.com/2793/
Re: Ghost Font: A font that humans can read but AI cannot
#94[deleted]
Re: Ghost Font: A font that humans can read but AI cannot
#95Took me a long time to realise that "Written In Ghost Text" wasn't actually the text I was meant to be reading, and that was only the decoy message. I can barely read the actual message, and it's about as "readable" to me as the Magic Eye 3D pictures. Actually I think I have a headache from looking at it on a mobile screen. As a research idea it's cool though. But I do wonder if/when AI models will figure out how to…
> ”Took me a long time to realise that "Written In Ghost Text" wasn't actually the text I was meant to be reading, and that was only the decoy message.”
Wait, what? Seriously? That’s the only text I can see. Am I an AI?
Re: Ghost Font: A font that humans can read but AI cannot
#96What is making it hard to read for so many people? My eyes aren't young or healthy, but it is as clear as day for me. Wonder with screens play are role.
Maybe part of it is the natural genetic variation in humans. I could read it, but it wasn't easy for me. My eyes are old too.
Re: Ghost Font: A font that humans can read but AI cannot
#97> struggled to decode the moving message until prompted with the exact technique to look for.
So once the technique is known by the model the font stops working as intended.
Re: Ghost Font: A font that humans can read but AI cannot
#98> For example, it would be interesting to incorporate Ghost Font into CAPTCHA systems, as most systems are easily solved by AI today. It seems to me like it should be easy enough to take Ghost Font, apply normal video compression techniques, and analyze the compressed signal to recover the visual outline of the letters, which you would then analyze with OCR (or an AI I guess ...). In other words, a novel CAPTCHA tech…
Yes, it may be useful to replace current CAPTCHA, but this does not provide the positive side-effects of CAPTCHA where user-submitted data is used to train the unknown images or reinforce the labelling of existing image segments.
Re: Ghost Font: A font that humans can read but AI cannot
#99GPT-5.6 had no problem seeing the text when giving it a video recording of it.
"No problem" as in using temporal analysis with optical flow and vertical-displacement maps to estimate how the image moved, and combine those into a motion map with increased contrast to see the text. I didn't give it any instructions though, just asked it what it said.
Re: Ghost Font: A font that humans can read but AI cannot
#100That's... not a font? That's a generated animated image/video? "A computer font or digital font is a digital data file containing a set of graphically related glyphs" so it's not a font, humans can't read it and AI can.
> I suppose technically, it's not a font in the traditional sense of a TTF font file. But, Ghost Font is an experiment of a way to graphically communicate in writing in a format that AI cannot easily understand And this thread is seemingly full of people claiming AI can read it while simultaneously sharing that AI could not read the actual message, only the decoy as demonstrated in TFA.
> And this thread is seemingly full of people claiming AI can read it while simultaneously sharing that AI could not read the actual message, only the decoy as demonstrated in TFA.
That’s 100% on the authors for failing to make the default main “hidden” text and the decoy easily distinguishable. The way this is set up is incredibly confusing.