Funny Pictures Thread. It begins again

GasBandit

Staff member
AI faces have a weird, waxiness to them, like AI can't conceive faces that haven't been through multiple filters.
Speaking from experience, they can, you have to use prompts nobody bothers with, like "imperfect skin" or "visible pores and peach fuzz" But even then, there's clues. Vaguely unfocused eyes that don't converge, the exact same smile consisting of perfect teeth (because who uses tooth decay prompts?), and other telltale signs. Another dead giveaway is often if you squint your eyes, you can't tell if a mouth is closed lips, or a protruding tongue, or slightly open... it's like those old illusionary images that show you different things based on if you squint or not.
 
Even if you cropped everything else out besides her head, you can tell it's AI generated. I don't know how to describe it, but she's got that AI face.
The way these diffusion programs generate images is by starting with noise. Because of this, the light and dark balance is going to be exactly the same throughout the entire image. If you average the light and dark of an area to a single color, and then do that through the entire image, it will all be the exact same shade.

Normal images are not like this. So if you feel like ai images just look a certain way and you can't exactly explain why, this might be it.

Edit: I found an example of how the noise diffusion works
 

GasBandit

Staff member
I see it as perfect symmetry. Nobody has a perfectly symmetrical face.
Actually, sometimes symmetry is hard to accomplish. Because the AI is basically autocomplete for pixels, it can lose track of the continuity from one side of the face to the other. I've had to discard hundreds of otherwise amazing-looking generations because one eye was clearly modeled after an entirely different person than the other. "Symmetrical eyes" has become one of my must-have prompt entries.. and even then, it doesn't always work.
 
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