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

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

#381

Post by jeffreygoesto »

KarlKemp wrote: post #107
Gigachad wrote: post #63

Earlier quoted context omitted.

No free lunch, but an incredibly good value lunch. The quality that comes out of phone cameras is remarkable. And the times it messes up are so rare that it becomes a talking point worthy of hundreds of comments.

Indeed. I wish I had a list of everyone parroting the wisdom that "it's all about the size of the lens, a smartphone can never be as good as a DSLR" so as to ignore their future opinions. Camera phones now beat cameras worth thousands of dollars with better software and larger R&D budgets, at least in low light performance and color gamut. Closely related: "It's impossible to just 'enhance' an image to make a license…

Nope. The image data _is_ actually lost. What happens is that it gets pimped with what on average was lost when a training process artificially degraded a training set. For the results to look(sic) natural, you need both the training set and the degradation to be close to what you're shooting. If that is not the case, hallucination happens.

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

#382

Post by AnyTimeTraveler »

jiggawatts wrote: post #316
fomine3 wrote: post #310

Earlier quoted context omitted.

Don't group $50 device and $2000 device as "Android".

You can buy a $2000 Android loaded with crapware.

You can also buy a $50 Android without.

What's your point?

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

#383

Post by thaumasiotes »

twofornone wrote: post #141
ramesh31 wrote: post #88

Earlier quoted context omitted.

> Sugary, salty and fatty foods are consistently rated by typical people as more tasty than foods without them. Hence, all fast-food restaurants load their foods up with those elements instead of more expensive flavourings such as herbs and spices. I love this one. Want to convince someone with an unsophisticated palette that you are the greatest chef in history? Just start loading everything you make with butter and…

You can buy MSG on amazon and instantly make anything taste great.

You can buy MSG in any store. Why Amazon?

It doesn't have much effect. I make fried rice with and without it and can't really tell the difference.

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

#384

Post by jlnthws »

hughrr wrote: post #19

Well it’s in telephoto and 1/121 exposure so the photographer was probably wobbling around like mad when it was taken and the overlay and computational image stuff got confused. I’m fine with this. I use a mini tripod with my 13 pro on telephoto. Back in the old days this would just look like ass instead.

Yes that’s the correct explanation: 1/120 speed for 220mm focal length equivalent is far too slow, at least 1 EV. The stabilization is probably not on par with big pro lenses and SLR so you might offset 1 more EV. Now the way the AI is fixing this seems obviously wrong but it’s “best effort”. I’m guessing it has taken several pictures and merged them. This can’t be right 100% of the time. Maybe they should add a “no smart self-similarity merges” option, I would use it most of the time.

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

#385

Post by kuschku »

tartoran wrote: post #221
Zircom wrote: post #83

Earlier quoted context omitted.

I hate motion interpolation with a burning passion and have made it into practically a vendetta and will turn it off anywhere I see it by any means necessary, including downloading a remote application onto my phone and using the IR blaster to turn it off in restaurants and waking up in the middle of the night at friends houses to sneakily switch it off.

For whoever what motion interpolation is also known as is the soap opera effect on movies and I agree, it looks terrible but most people don’t get it, it doesn’t bother them at all.

For me personally, 24fps is extremely close to being unable to perceive motion, and in many movies I absolutely can't see the content.

Any pan in a movie is something where my mind absolutely is unable to process the motion and I become unable to see anything at all. With motion interpolation on, I can actually tell what's happening in an action scene.

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

#386

Post by kuschku »

laumars wrote: post #110
Benjamin_Dobell wrote: post #86

Earlier quoted context omitted.

> I find bassiness is a desirable feature rather than a gimmick for dumb consumers It's perfectly reasonable to find bass a desirable quality. Depending on my mood I'll listen to music with lots of bass, or with little bass. However, I've zero desire to intentionally alter the frequency response so I'm hearing something different than the musicians and mixing engineer intended. Instead I'll just listen to appropriate…

> However, I've zero desire to intentionally alter the frequency response so I'm hearing something different than the musicians and mixing engineer intended. I’ve done a lot of research on this as a recording artist myself and what you’re saying here is a misunderstood meme. Eg Half the records released before 80s have been remastered to sound different to what the musicians originally recorded. Plus any medium adds…

And that's why you buy the CD release of Peter Gabriel albums and listen to those instead ;)

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

#387

Post by kuschku »

mgraczyk wrote: post #242
ehsankia wrote: post #217

Earlier quoted context omitted.

RAW is not quite what they want (I think). It's HDR+ that they need to disable. The latter takes multiple frames at different exposures and smartly merged them into a single photo, then applies extra color corrections on top. Taking RAW skips the last step, but you still get a merging of multiple frames. Disabling HDR+ will, I believe, take a single frame. Of course on a small phone sensor, the quality will be quite…

Yeah I work on HDR+. Depends on the phone though, only certain phones run full HDR+, but they all do some sort of multi frame processing. If you were able to disable HDR+ and get a single captured frame, it would look horrible. You'd have to merge multiple frames yourself to get something decent. You can Google around for ways to do that but it will only work on a few phones.

The way HDR+ merges stuff (which looks awesome, but something is just off, especially in darker environments) is actually why I bought a Sony α6300. Used it was cheaper with a good lens than a Google Pixel would have been (my Pixel 1 stopped getting updates after all) and the photos it takes are incredible.

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

#388

Post by laumars »

kuschku wrote: post #386
laumars wrote: post #110

Earlier quoted context omitted.

> However, I've zero desire to intentionally alter the frequency response so I'm hearing something different than the musicians and mixing engineer intended. I’ve done a lot of research on this as a recording artist myself and what you’re saying here is a misunderstood meme. Eg Half the records released before 80s have been remastered to sound different to what the musicians originally recorded. Plus any medium adds…

And that's why you buy the CD release of Peter Gabriel albums and listen to those instead ;)

Already discussed that point: those have been remastered for CD and thus sound different to the original recorded versions.

If you’re a purist like the GP then you wouldn’t listen to the CD versions. Of course, in practice most people are not that much of a purist. Which is why the whole meme of “as the artists intended” is largely hypocritical posturing.

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

#389

Post by sethammons »

gwillen wrote: post #376
Derbasti wrote: post #367

Earlier quoted context omitted.

A while ago I was trying to compare a few of my cameras. It was a cloudy day in early fall. All three cameras and my eyes agreed that the sky was dull-grey and the leaves on the trees drab-brown. To the iPhone, however, the sky was more blue than grey, and the leaves had an autumn-orange hue instead of brown. It wasn't a complete fake, and if I had only had the iPhone picture I wouldn't have noticed. But it was just…

This kind of white-balance fuckery became very apparent last year, when the skies in the bay area turned orange and red from smoke. On many phone cameras, the photos were automatically color "corrected" to be completely wrong, with no option to avoid this.

I have yet to capture the oranges, pinks, and violets of our amazing sunsets on a phone camera. It is always more mundane and the vibrance gone.

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

#390

Post by syshum »

albert_e wrote: post #371
tomduncalf wrote: post #362

I had something like this happen the either week - someone took a photo of a group of us against a wooden wall in low light with the front camera of the iPhone 13 Pro Max, and while the photo looked great zoomed out, if you looked closely it had applied the vertical line and texture of the wooden slats to my face, so I had a sort of wooden face! My assumption is that this is over enthusiastic ML processing trying to…

I worry that smartphone photos will become inadmissible in court as evidence ... and will also give all shady characters like politicians a cover to change narratives

Good defense attorneys already will

I am more shocked that you are not concerned that image manipulation technology could (and likely already has) been used to send an innocent person who can not afford the use of an expert to challenge the image to jail

Evidence presented in court should reflect exactly what happen, a true and accurate representation. Not what some ML algorithm believes happened. This is especially true in a criminal cast where a persons freedom is at stake, and often the captured criminality is not the focus of the image but rather something in the background making the ML processing even less reliable, and would allow for more interpretation by the viewer.

I am a firm believer that is better for 100 guilty to go free than it is for 1 innocents to falsely convicted, sad that many do not share that world view any more

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