On Deepfakes

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On Deepfakes

Post by Nanohedron »

We can no longer complacently say, "Seeing is believing."

Discuss. That is, if you can believe your eyes.
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Re: On Deepfakes

Post by david_h »

Aw, you mean Superman wasn’t really flying in 1978?
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Re: On Deepfakes

Post by benhall.1 »

Nanohedron wrote: Mon Apr 26, 2021 3:28 pm We can no longer complacently say, "Seeing is believing."

Discuss. That is, if you can believe your eyes.
Who said that?
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Re: On Deepfakes

Post by Nanohedron »

benhall.1 wrote: Wed Apr 28, 2021 1:11 pm
Nanohedron wrote: Mon Apr 26, 2021 3:28 pm We can no longer complacently say, "Seeing is believing."

Discuss. That is, if you can believe your eyes.
Who said that?
There were a couple of articles I read somewhere commenting on this year's uncannily high level of quality among AI-generated deepfakes compared to last year, and to the casual observer - and that's most of us - they're pretty good. Reportedly all the cats in the following composite pic (from this article) are AI-generated:

Image

Among the fifteen there are seven that are for me detectable; but except for one, I still had to take a good hard look not to be fooled. I also think you have to be very familiar with cats to know what's realistic and what's probably not, and compared with the terrible quality of before, now the tipoffs can be subtle.
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Re: On Deepfakes

Post by kkrell »

Reportedly all the cats in the following composite pic (from this article) are AI-generated:

Image
What's worse is that we still need to find them homes.
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Re: On Deepfakes

Post by Nanohedron »

Make that eight.
kkrell wrote: Wed Apr 28, 2021 6:47 pm What's worse is that we still need to find them homes.
If AI can make cats, it can make the real estate. And the litterboxes.
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Re: On Deepfakes

Post by Nanohedron »

Eleven. Yes, I have no life.
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Re: On Deepfakes

Post by ytliek »

I don't even know what a deepfake is. I'm so out of touch with the world.
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Re: On Deepfakes

Post by Nanohedron »

ytliek wrote: Thu Apr 29, 2021 12:54 pm I don't even know what a deepfake is. I'm so out of touch with the world.
Here you go:

https://en.wikipedia.org/wiki/Deepfake

Strictly speaking, I suppose the cat images might not be considered deepfakes per se, but only constructions. Still, that's part of the game.
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Re: On Deepfakes

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Nanohedron wrote: Thu Apr 29, 2021 12:59 pm
ytliek wrote: Thu Apr 29, 2021 12:54 pm I don't even know what a deepfake is. I'm so out of touch with the world.
Here you go:

https://en.wikipedia.org/wiki/Deepfake

Strictly speaking, I suppose the cat images might not be considered deepfakes per se, but only constructions. Still, that's part of the game.
Thank you Nano. I should've known. I am a bit gullible.
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Re: On Deepfakes

Post by Nanohedron »

ytliek wrote: Thu Apr 29, 2021 2:26 pm I should've known.
I don't see why; it's only recently become something of a household word, and it won't be every household.
ytliek wrote:I am a bit gullible.
We all are. It took some really hard looking for me to realize why those pics are fakes, and I didn't get it all on the first pass. There are only four left so far that give me little reason, other than being told, to be certain that they are in fact artificial constructions.

More sophisticated eyes, particularly those in the field of AI, might be better at it; I have to rely on my familiarity with cat physiology, and on things such as lighting and consistency. Some say that blurry backgrounds are a dead giveaway, but I think not necessarily, and in any case AI is bound to catch up with that.
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Re: On Deepfakes

Post by benhall.1 »

I'm going to have a go at what I see as 'wrong' with those cat pictures. I think with a few of them, I would have seen that there was something off, but still wouldn't necessarily have thought they were fake - just American. :twisted:

Anyway, here goes:

1 The eyes seem to low, and the forehead too flat
2 The eyes are too small and the wrong shape
3 The eyes are too small, the wrong shape, too wide and too low
4 I would never initially think this one was a real cat. That mouth is nothing like that of any other cat I've ever seen ... I can't beyond the mouth, really ...
5 There's something wrong with the way the fur is lying, and the 'mascara' and 'eyeshadow' just doesn't look convincing
6 The noes it too broad
7 If that is supposed to be a cat, then it's been crossed with a bat
8 The eyes are the wrong colour, the wrong shape and too far apart, and the nose looks more like a dog's nose than a cat's
9 Too human. Fairly convincing, this one, for me, though ...
10 This one is very convincing. I'm slightly put off by the hairs in its ears, but apart from that, that one is convincing ...
11 This one doesn't look like any cat I've ever seen. I have never, ever seen a cat that colour, for a start, plus it looks stuffed
12 Convincing. Maybe the nose is a bit broad at the forehead, but pretty convincing ...
13 There's something absolutely wrong with this one. The eyes don't look remotely in the right place to me
14 Convincing. There again, it's a bit blurry
15 Convincing.

How does that measure up with what you were thinking, Nano?
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Re: On Deepfakes

Post by david_h »

Nanohedron wrote: Mon Apr 26, 2021 3:28 pm We can no longer complacently say, "Seeing is believing."
Some people haven't said that since shortly after the invention of photography. As the Deepfake Wikipedia page says "the act of faking content is not new". A century ago people who could have been regarded as 'influencers' of their time were fooled by some crude efforts - https://en.wikipedia.org/wiki/Cottingley_Fairies Normal folk going to a show of 'lantern slides' given by an explorer may not have noticed if some had been 'touched up' a bit to better illustrate the story (I have seen examples )

Forewarned is forearmed. We know what is now possible, and as before we know that we might not be able to tell from the final product.

As for the cats - how do I know you can tell? As a test it would need a mix of fakes and real cats, some slightly weird. I was going to look for weird cat photos but remembered this;

Image

So far as I can tell it's real and not an April 1st story that got out of hand. But I'm sure the eyes would be easily done in Photoshop. So either way seeing it I'm not going to believe it without reservations.

As for the AI bit. Meh. The guys who made Superman fly did some clever stuff and could probably explain it to human beings in plain English (or whatever).
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Re: On Deepfakes

Post by Nanohedron »

benhall.1 wrote:How does that measure up with what you were thinking, Nano?
It's very interesting: In some pics you and I see the same things, but in others we don't, and in others yet we have very different cues as to why we think they're fakes.

Here are my observations:

1: The back meets the head too high up.
2: The body behind the head isn't really a body at all; it's just ... random furry stuff.
3: Convincing.
4: Same as Ben. That lower jaw is all wrong. Plus the backlighting effect on the side of its ruff isn't seen anywhere else.
5: No discernible chin; the face just sort of blorps into the neck.
6: Convincing.
7: Same as Ben. If that is a cat, it belongs to Cthulhu.
8: Going by typical Siamese coloration (which this only approximates after a liberties-taking fashion), the neck coloring is quite wrong. Plus the neck has an implausible formation. And I agree with Ben that the eye coloring is unnatural; if there is a first tipoff, that should be it.
9: The whisker pads aren't realistic; they should be more prominent. Otherwise, not bad.
10: Convincing.
11: Convincing, with slight reservations about what's going on below the head. On second look, though, I'm inclined to agree with Ben that its color is unnatural.
12: The muzzle is skewed. It could bite around corners if the corner is on its right.
13: Same as Ben. Too much asymmetry with the eyes.
14: The face's plane is too vertical.
15: The ruff is asymmetrical, and its edge on the left (the cat's right) is not as feathered as it should be.
david_h wrote:As for the AI bit. Meh.
I don't know; I'm pretty impressed that AI can make such pictures independently with no human manipulation of the product required. Makes me all the more liable to keep my eyes open - and I've been doing that for years already, but, I must admit, not always with success. I remember a certain tuba ...
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Re: On Deepfakes

Post by Katharine »

Nanohedron wrote: Wed Apr 28, 2021 6:59 pm If AI can make cats, it can make the real estate. And the litterboxes.
Well then, AI can scoop the litterboxes. (It can come practice on mine... which, unfortunately, is quite real...)
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