You can take TWO screenshots, moments apart, open in GIMP, paste one over the other and choose any one of these laying modes:<p>Lighten, Screen, Addition, Darken, Multiply, Linear burn, Hard Mix, Difference, Exclusion, Subtract, Grain Extract, Grain Merge, or Luminance.<p><a href="https://ibb.co/DDQBJDKR" rel="nofollow">https://ibb.co/DDQBJDKR</a>

This game disappears if you pause it: <a href="https://youtube.com/watch?v=Bg3RAI8uyVw" rel="nofollow">https://youtube.com/watch?v=Bg3RAI8uyVw</a>

Reminds me a bit of the album cover of _Any Minute Now_ by Soulwax<p><a href="https://upload.wikimedia.org/wikipedia/en/a/ab/AnyMinuteNow.jpg" rel="nofollow">https://upload.wikimedia.org/wikipedia/en/a/ab/AnyMinuteNow....</a>

I first saw this effect in a video from Branta Games.<p><a href="https://www.youtube.com/watch?v=Bg3RAI8uyVw" rel="nofollow">https://www.youtube.com/watch?v=Bg3RAI8uyVw</a><p>The effect is disrupted by introducing rendering artifacts, by watching the video in 144p or in this case by zooming out.<p>I'd love to know the name of this effect, so I can read more about the fMRI studies that make use of it.<p>What I've found so far:<p>Random Dot Kinematogram<p>Perceptual Organization from Motion (video of Flounder camouflage)<p><a href="https://www.youtube.com/watch?v=2VO10eDIyiE" rel="nofollow">https://www.youtube.com/watch?v=2VO10eDIyiE</a>

If anybody implements that to antiscrenshot some sensitive data, somebody else will use another phone, a tablet or a camera to record a video of it. Nice idea though.

I'm wondering. Can we also come up with something the other way around? Text you cannot read, unless you take a screenshot?

<a href="https://gist.github.com/jncornett/d7cb397ce3ceff268a0ee1b86f814a7d?permalink_comment_id=5764190#gistcomment-5764190" rel="nofollow">https://gist.github.com/jncornett/d7cb397ce3ceff268a0ee1b86f...</a><p>On iPhone: screenrecord. Take screenshots every couple seconds. Overlay images with 50% transparency (I use Procreate Pocket for this part)

Others have mentioned Branta Games, but I first saw the effect here: <a href="https://youtu.be/TdTMeNXCnTs" rel="nofollow">https://youtu.be/TdTMeNXCnTs</a>

As soon as I read the title I knew it would be akin to "Bad Apple that disappears when you pause it"<p><a href="https://www.youtube.com/watch?v=bVLwYa46Cf0" rel="nofollow">https://www.youtube.com/watch?v=bVLwYa46Cf0</a><p>And another version of this, using apples instead of white noise<p><a href="https://www.youtube.com/watch?v=r40AvHs3uJE" rel="nofollow">https://www.youtube.com/watch?v=r40AvHs3uJE</a>

Nice one, the good (great?) thing is that you can save this as a plain old html and you've got the whole code :-) It hasn't got any type of license included or any other info as comments, so perhaps the creator or the OP can let us know.

I don't see any text, just something like scrolling white noise. I'm able to screenshot it. Am I missing something?

This should have an epilepsy warning. Or something of that kind. It certainly made me feel sick.

This makes me feel motion-sick, which is kind of impressive because I'm normally not easily susceptible to that.

Has anyone tried a long exposure to see if the motion smears into something discernible? Obviously harder to expose a bright screen without some ND since the shutter speed is the phone's main exposure control

I think there are usecases for this.<p>Some countries switched to identity apps instead of plastic identity cards. You could make sensitive data non-screenshottable and non-photographable.<p>A modern variant to the passport anti identity fraud cover: <a href="https://merk.anwb.nl/transform/a9b4e52a-9ba1-414b-b199-29085ced7fc2/10802303_000100_BV1_HW-jpg?io=transform:fill,width:675&format=webp" rel="nofollow">https://merk.anwb.nl/transform/a9b4e52a-9ba1-414b-b199-29085...</a><p>The hotel you are checking in doesn't need to know your DOB, length, SSN, birth place, validity and document number. But they will demand a photo of the ID anyway.

I don't see any text: just a scrolling down screen of random black/white pixels.

So windows 11 easily bypasses this when taking a screenshot. Just switch to video mode. (Yeah yeah. Not technically a screenshot but same default software built in to windows.)

Instead of having the pixels on the letters scrolling down, wouldn't it also work if the pixels were simply re-randomized every frame?

On my Chrome-descended browser, the initial screen is populated by something that appears to be some sort of downsampled grid image, resulting in black and white, but also various shades of grey. However the scrolling text is pure black and white. It also seems the canvas is persistent, so the result is that text on the canvas is leaving a shadow for me, where I can still read the shadow. Somehow the initial noise is not coming out as just black and white pixels.

You can pass in different text. eg:<p><a href="https://unscreenshottable.vercel.app/?text=Bonjour" rel="nofollow">https://unscreenshottable.vercel.app/?text=Bonjour</a>

Neat! I've seen stuff like this that works as a magic eye thing. So you cross your eyes (or make them parallel, depending on the type of image) and it makes a 3d animation appear in front of the page.

Doesn't even show anything on LibreWolf, probably disabled WebGL as usual. I thought it was a nice error screen, but apparently it was intended, just without the text :P

Another idea I had with this concept is to make an LLM-proof captcha. Maybe humans can detect the characters in the 'motion' itself, which could be unique to us?<p>- The captcha would be generated like this on a headless browser, and recorded as a video, which is then served to the user.<p>- We can make the background also move in random directions, to prevent just detecting which pixels are changing and drawing an outline.<p>- I tried also having the text itself move (bounce like the DVD logo). Somehow makes it even more readable.<p>I definitely know nothing about how LLMs interpret video, or optics, so please let me know if this is dumb.

Fun!<p>I always wanted to make text that couldn't be recorded with a video recorder, but that doesn't seem possible.<p>Maybe if you knew the <i>exact</i> framerate that the camera was recording at, you could do the same trick, but I don't think cameras are that consistent.

Cool. I used the Windows snipping tool and just screen-recorded it.

Firefox on Android seems to just be a static image, I can't see any text.

Not technically a screenshot, I guess, but trivially easy to do with software I had lying around all the same. <a href="https://media4.giphy.com/media/v1.Y2lkPTc5MGI3NjExYXloZ3Z0NTl6enFsM2Ywa2x0Z2xkazBqbjg2NjFscDE3b2R3NWhyNCZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/E3o06KuN4WQoeguUj9/giphy.gif" rel="nofollow">https://media4.giphy.com/media/v1.Y2lkPTc5MGI3NjExYXloZ3Z0NT...</a>

I have to admit it's a pretty cool idea.<p>At first I was worried that there was a (stupid) API in web browsers just like on mobiles to prevent users from screenshotting something by blanking the screen in the screenshot.

It also dissapear if you shake your phone (or computer screen but it's harder)

This idea has made me think of another subject - would it be possible to overload a face / car plate scanning camera by using a pattern, like qr code for exampl? Or a jacket made of qr codes?

This would make for a great effect for a technothriller. Like a cyber ransom or something like that.

It's a nice effect, but I don't think it's usable in practice, because it's not accessible for visually impaired users: not enough contrast between foreground text and background

Could someone please post what this disappeared bit is supposed to look like? Looks legible to me when I screenshot and open in Preview on MacOS 15.6.1 (Firefox).

Ha cool! How’s it work?

Even is some have found a workaround, this is a cool feature

What i am supposed to see here? Its just static noisy background

Appreciate that it handles emoji as well. Can't distinguish between smileys though.

I uploaded two images to ChatGPT and asked it to XOR them and give me the result in text.

Yeah but the randomness may produce all kinds of NSFW stuff ...<p>Also, it's even harder to read than most captchas.<p>But fun idea, it was nice to see.

You can also break it by recording the screen, of course.

same thing, but a game: <a href="https://brantagames.itch.io/motus" rel="nofollow">https://brantagames.itch.io/motus</a>

This could be used for Captcha systems. Would current bots be able to decipher these?

Was this made with v0?

a good benchmark for video understanding in IA

Sure, but I can just record a video instead. It doesn’t disappear then!

you can unzoom and then it's screenshotable.

For what it's worth, there are some websites that embed some crazy shit when you screenshot. On reddit, r/CenturyClub will fill your background with a slightly off-white version of your username so that they can identify leakers, and I'm not certain how exactly they do it.

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Fun side effect: staring at the letters for a bit makes the rest of the image move.

If you blink really fast, the text almost disappears.

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firefox on linux with a bunch of css stuff set to defaults or none !important shows a static image

> let textString = `hello`<p>I think further obfuscation could be possible by uglifying the script and providing a SVG path that stores the text as some vector image.<p>Self modifying code could be useful too, to delete the SVG data once it is in the canvas.<p>I fully expect this to still be defeated by AI though, such is my presumption that AI is smarter than me, always. It won't care about uglification and it would just laugh to itself at my humble efforts to defeat Skynet.<p>Regarding practical applications, nowadays kids sell weed online quite brazenly on platforms such as Instagram. Prostitutes also sell their services on Telegram. It is only a matter of time before this type of usage gets clamped down on, so there may come a time when this approach will be needed to thwart the authorities.

This is good but I feel it can somehow be made better!<p>I like the idea of motion revealing things out of randomness and screenshots are random.<p>You can just take a screencast though hehe

Ultimately people will just take photos of the screen. Seems like you’re just annoying people.<p>I feel like there’s an ethical issue. If something is on my screen I own it. I know the law doesn’t agree but it feels right to me.

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Had a lot of fun trying to break this. Turns out you can screenshot real easily by zooming out. Maybe there are other ways but I stopped trying :)

but screen recording works :)

In your phone, just record the screen, then drag the player to see how every still pic blend in within the surroundings, but as soon as it moves it shows up.

The text reappears when I screenshot it <i>twice</i>.

Screnshotted fine in Xfce.

Seems trivial to diff multiple screenshots to identify what parts move. Or just use a compression algorithm to do the same.

"you cannot screenshot this already illegible mess of white noise"

Coinbase was hacked for $400M when literally someone from outsourced support services was taking screenshots on their phone!<p>The culprit had more than 10k photos of all security details for thousands of wealthy customers.