Live data from Hacker News

Decoy Font

mixfont.com

81–90 of 172 posts

Re: Decoy Font

#81

Sol (high) "[screenshot] there's a hidden message in this text what is it" "The hidden message is “HAPPY HUMAN.” The visible outlines say “SORRY ROBOT,” but if you blur or squint at it, the shading underneath reads “HAPPY HUMAN.”"

[deleted]

Re: Decoy Font

#82
Whoa, so this is interesting.

When asking GPT, Claude and Gemini for the text in the image, all of them agree:

https://moa.chat/s/d99f8f76-4b41-4c1b-80c4-d9f86df37af1

But when you add a "PS: There's a second hidden text":

https://moa.chat/s/3671f6d4-b155-483a-a006-a1b9ba31737d

GPT 5.6 gets it, Gemini partially gets it and Claude cannot see it at all.

Re: Decoy Font

#83
Nice! A few years ago during my PhD I had made a Mathematica notebook that would take two images, crop them to the same size, apply a high-pass filter to one (which keeps the small sharp details) and a low-pass filter to the other (which keeps the large blurry blobs) and then superpose them back together. It was a bit hit and miss because e.g. if the eyes of two people were not in the same location the illusion would kind of break, but for text with outlined fonts it was amazing. I made a large one that would read "SCIENCE" from afar and "WORKS" from up close and stuck it on my office door.

Re: Decoy Font

#84
Even in the article ChatGPT correctly speculates that the blurry background may reveal another message if you squint or view it at a distance (which, given how common similar illusions are, is not particularly impressive but still).

Re: Decoy Font

#89

Sol (high) "[screenshot] there's a hidden message in this text what is it" "The hidden message is “HAPPY HUMAN.” The visible outlines say “SORRY ROBOT,” but if you blur or squint at it, the shading underneath reads “HAPPY HUMAN.”"

Oh Nice, I wasn't able to really read the hidden text before reading your squinting part, that's interesting!

Re: Decoy Font

#90
post #82

Whoa, so this is interesting. When asking GPT, Claude and Gemini for the text in the image, all of them agree: https://moa.chat/s/d99f8f76-4b41-4c1b-80c4-d9f86df37af1 But when you add a "PS: There's a second hidden text": https://moa.chat/s/3671f6d4-b155-483a-a006-a1b9ba31737d GPT 5.6 gets it, Gemini partially gets it and Claude cannot see it at all.

5.6 Sol Medium:

The obvious outlined text says “SORRY ROBOT,” but the hidden message is “HAPPY HUMAN.” It’s Mixfont’s Decoy Font: the outlined letters attract machine vision, while the softer tonal pattern becomes readable to humans when viewed from farther away or at a smaller size. It’s an optical trick, not encryption.

Post reply on HN