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0 pointsonetimeuse923042y ago0 comments

Cameras are used to scan analog film. I have used it in the past, it works perfectly and there is no way for you to tell it was scanned this way.

But here is an alternative:

You pass an image through a lens, you take photo from the camera. Now, having the input original AI-generated image and photo with the artifacts you calculate what changes your camera introduces. You reverse it to know what needs to be modified in original image to get photo exactly as you want. If one pass does not suffice, you do multiple passes.

Yes, it is easy, as in a CS or math student can do it.

0 comments

M95D2y ago

How would you display the fake image in front of the camera? That camera has a 60 MP sensor. That about 10'000 x 6'000 pixels. Eight times higher than a 8K display!

Also, you would need a curved spherical display, or the camera won't be able to focus on it's center and corners at the same time.

What photographic analog film has at least a 60 MP resolution without any blur or dim colors? How would you transfer a digital fake image on that film? How would you take a picture of that film without losing even more resolution, color, sharpness?

onetimeuse92304OP2y ago

First, you mistakenly assume every photo of note is sharp. That's absolutely not true.

Second, no you do not need a spherical display. Depth of field IS A PLANE. Also, photographing analog film is done from good enough distance to get rid of any curvature for the practical purposes.

Third, photographic analog films can have hundreds of MPs. But it does not matter, the choice of medium you present to the camera is yours and it does not have to be analog film. I am just giving analog film as an example because it is high resolution compared to even best prints or digital displays.

Fourth. Before you start saying something is not possible, would you mind to do an even most basic cursory search? Here is an example of people doing this professionally with a DSLR: https://www.youtube.com/watch?v=BVmIhwG0XfU

M95D2y ago

I was wrong about the spherical display and the resolution of analog film. I'm sorry about that.

I still can't see how the digital fake could be transfered to analog film at that resolution or what other means of presenting the fake image in front of the camera might produce non-obvious-fake digital images.

j / k navigate · click thread line to collapse

0 pointsonetimeuse923042y ago0 comments

Cameras are used to scan analog film. I have used it in the past, it works perfectly and there is no way for you to tell it was scanned this way.

But here is an alternative:

Yes, it is easy, as in a CS or math student can do it.

0 comments

M95D2y ago

How would you display the fake image in front of the camera? That camera has a 60 MP sensor. That about 10'000 x 6'000 pixels. Eight times higher than a 8K display!

Also, you would need a curved spherical display, or the camera won't be able to focus on it's center and corners at the same time.

onetimeuse92304OP2y ago

First, you mistakenly assume every photo of note is sharp. That's absolutely not true.

Second, no you do not need a spherical display. Depth of field IS A PLANE. Also, photographing analog film is done from good enough distance to get rid of any curvature for the practical purposes.

M95D2y ago

I was wrong about the spherical display and the resolution of analog film. I'm sorry about that.

j / k navigate · click thread line to collapse