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Hints for Detecting AI-Generated Images


JackFTwist

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Note:  This blog entry won't have much to say about AI-assisted or AI-enhanced images like the enhancements that the latest generation of iPhone cameras can produce for any photo you take.  That's a brave new world, and not much is known about it yet.

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JackFTwist

Posted

On February 18, 2024, @teddy0012 posted the two selfies below in a comment under one of the images in the Big Cocks theme album here:

Teddy0012stwinkintheshower.thumb.jpg.ff43751905303dab808de71811b1df15.jpg   Teddy0012shungtwinkselfie2.thumb.jpg.ab06677fc18e7ab4806a3d8fc8db3c5a.jpg

@AK29 responded:

@teddy0012 replied:

  • As far as I can tell, yes, @AK29  I'm guessing we'd need the eagle eye of @JackFTwist to tell us if they have been modified or if they are AI generated.

My comments are shown in the following post.  After another follow-up question, this discussion threatened to disrupt the flow of comments about the original image, so it seemed to be a better idea to continue this complex discussion in a separate forum, like a blog post dedicated to the topic of hints for detecting AI-generated images.

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JackFTwist

Posted (edited)

(This was my reply to @teddy0012's original question.)

LOL, @teddy0012, you put too much faith in me and my aging eyesight!  But no, these two images almost definitely aren't AI-generated.  The two strongest clues are:

  • The hands look completely natural.  For some reason, the AI system engineers haven't yet figured out how to reproduce human hands or feet accurately.  The worst cases may have missing fingers or toes, or too many of them.  Or the hands may just look unnaturally mangled, the fingers may have unusual lengths (the little finger is sometimes nearly as long as the middle finger!), or the finger joints may be in the wrong place or simply look unnatural (just compare them to your own hands or any legitimate image).  Another telltale sign is that the fingernails and fingertips look unnaturally pointed, like dangerous weapons.  Producers of AI images have learned to get around these problems simply by not showing the fake figures' hands!  But as AI gradually improves, the engineers will eventually solve this problem.
    • In the AI image below, note the weird appearance of the hands.  Also, his left upper leg appears longer than the right one, and the spandex has an unnatural-looking crease between his quadriceps and hamstring muscles.
  • Inexplicably, AI can't yet accurately reproduce simple text.  So the dead giveaways that image #2 is real are the clear "Spotify" text and the "FCB" in the crest above that.  In general, look at any logo or text in an image, like the brand name on the waistband of briefs, or even a sign in the background.  If the lettering looks jumbled and indistinct, then the image is suspect.
    • Both of those lads are amazingly well-hung, though, aren't they?  The second one's cock reaches almost to his knees, and he's presumably not even fully erect.  Why are so many of these hung guys the skinny ones?

Besides those two hints that an image is AI-generated, I'd also add that, IMO, models in AI images typically have unnaturally smooth, plastic-looking complexions with few, if any, skin blemishes.  They remind me of sexualized Ken Dolls.  But sometimes this can be a matter of the viewer's perception, so it's not a reliable criterion.  Some viewers might find it useful, while others won't.

It's hard to tell whether either one of these images has been morphed to make their cocks look bigger.  Neither one has any of the telltale signs of such manipulation:  discolored skin around an area where a body part (a face or cock) has been Photoshopped onto the original image, or a general blurriness to a morphed image.  Both of these images are crisp and clear.

Having said all that, two caveats are worth noting:

  • Actual real images can also be enhanced by AI technology -- basically, extensive Photoshopping that would otherwise take hours can be accomplished in only a few seconds after entering the relevant instructions, like "enlarge the bulge in his groin."
  • The latest top-of-the-line iPhones have this technology built into their camera apps.  Combining different features from several different shots of a subject can be done with a few touches of the relevant buttons on the phone.  So those seemingly perfect smiles and poses in a family photo on this year's Christmas card or letter may actually be an AI-produced combination of the best features of several different photos taken within a few seconds of each other.

The number of AI fakes on AM hasn't become an epidemic yet, but it's growing fast.  Have fun deciding whether an image is real, AI-generated, or AI-enhanced!

Stud in Spandex - AI FAKE.jpg

Edited by JackFTwist
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