iPhone camera app replaces person’s head with a leaf in photo

#1

Post by davidbarker » Thu, Dec 30, 2021, 6:00 PM UTC

iPhone camera app replaces person’s head with a leaf in photo
twitter.com

Re: iPhone camera app replaces person’s head with a leaf in photo

#2

Post by warning26 » Thu, Dec 30, 2021, 6:05 PM UTC

Maybe the person really is leaves, and we're all just blind to the truth

Re: iPhone camera app replaces person’s head with a leaf in photo

#3

Post by Lamad123 » Thu, Dec 30, 2021, 7:12 PM UTC

warning26 wrote: post #2

Maybe the person really is leaves, and we're all just blind to the truth

agree

Re: iPhone camera app replaces person’s head with a leaf in photo

#4

Post by fxtentacle » Thu, Dec 30, 2021, 8:34 PM UTC

That looks to me like they are using deep learning with CNN for denoising. NVIDIA OptiX can produce similar artifacts.

However, it appears they forgot to add a loss term to penalize if the source and the denoised result image turn out too different. NVIDIA's denoiser has user-configurable parameters for this trade-off.

Re: iPhone camera app replaces person’s head with a leaf in photo

#5

Post by ladberg » Thu, Dec 30, 2021, 8:46 PM UTC

fxtentacle wrote: post #4

That looks to me like they are using deep learning with CNN for denoising. NVIDIA OptiX can produce similar artifacts. However, it appears they forgot to add a loss term to penalize if the source and the denoised result image turn out too different. NVIDIA's denoiser has user-configurable parameters for this trade-off.

I think it would be impossible to train the model in the first place without that loss term.

Re: iPhone camera app replaces person’s head with a leaf in photo

#6

Post by dt2m » Thu, Dec 30, 2021, 8:59 PM UTC

I’ve noticed some sort of image post-processing on the newer iPhones that removes noise and graininess, and instead adds this fake smoothness to all pictures. Haven’t found a way to disable it, save for shooting in RAW, which is impractical due to file size.

Really disappointed that this seems to be a forced setting.

Re: iPhone camera app replaces person’s head with a leaf in photo

#7

Post by hulitu » Thu, Dec 30, 2021, 9:40 PM UTC

No post body was provided.

Re: iPhone camera app replaces person’s head with a leaf in photo

#8

Post by micheljansen » Thu, Dec 30, 2021, 9:44 PM UTC

This gives me the same feeling as those ML-powered “enhanced zoom” features: where does the photograph end and the machine made-up fantasy start?

Re: iPhone camera app replaces person’s head with a leaf in photo

#9

Post by Cerium » Thu, Dec 30, 2021, 10:24 PM UTC

"Cameras" making changes to the image like this make the discussion about the image processing pipeline during the Rittenhouse trial seem a little less bizarre.

Re: iPhone camera app replaces person’s head with a leaf in photo

#10

Post by rubatuga » Thu, Dec 30, 2021, 10:31 PM UTC

dt2m wrote: post #6

I’ve noticed some sort of image post-processing on the newer iPhones that removes noise and graininess, and instead adds this fake smoothness to all pictures. Haven’t found a way to disable it, save for shooting in RAW, which is impractical due to file size. Really disappointed that this seems to be a forced setting.

I sometimes use the NightCap app for photos, and it doesn't have that AI bullshit.