There is a saying that the machine brother can't understand the naming of mobile phone photography now.
What about "skin renewal", "skin rejuvenation"... In fact, it is beautiful, and it is said that it is so crazy.
That is, to smooth out wrinkles, acne, and nothing new, and finally have to be repaired again. If I want to say that humanization still has to look at apples, there is no need to repair at all - the head can't be photographed for you.
This photo was taken by an elder brother in the United States. Earlier, he took a group photo with his iPhone, and then when he looked through the pictures, he found:
The head of this female benefactor is gone
Where it was supposed to be the head, there was only one leaf.
What's going on here?
Because this elder brother is also a programmer, he initially conceived from the algorithmic level: the iPhone portrait recognition error, the leaf behind the "replacement" to the front.
If this is true, isn't that perspective? Such a great feature was not even said at the press conference, and Cook really hid a hand.
But jokes are jokes, perspective is certainly impossible to drip.
But it also ruled out the possibility that the leaves were blocking the face, and if he was not blind, who would not see the leaves in front of him?
So in the end, he still posted this photo and the original parameters on the Internet for help.
Netizens cut their butts with a knife - opened their eyes, and have seen the algorithm overturn but have never seen such a flip.
Everyone is also racking their brains to think of why. At first, the machine brother felt that the most reasonable thing was this:
The meaning expressed by this netizen is that at the moment of taking a photo, the leaves suddenly appeared on camera to cover the face, so the photo was synthesized.
Because now many algorithms use "fusion photography", that is, taking many pictures at a time, and then combining them into one through the algorithm. And that leaf was one of them, and it was a coincidence that they came together.
The brother didn't think it right later, do you know how much shutter speed there is - 1/121 second.
That is, in an instant, the leaf came in and out again. Faster than the shutter - will this leaf still teleport?
Even if the face is covered, the head as the subject should not be completely lost, at most it is covered.
So, where did the head go?
If you name this event, the machine brother thinks it is called "disappearing head"
Finally, iPhone camera developers also participated in the "rescue" operation.
This great god first asked for an original film, as well as other samples.
Everyone was like this, quietly waiting for the analysis of the Great God.
The results of the final analysis were surprising - the god speculated that it was indeed the leaves that covered the face, but not the leaves in front of the face, but the leaves in the foreground area.
And this leaf didn't suddenly enter the mirror, it was always there.
After the elder brother saw it, he re-examined the "crime" scene again, and realized that this meow was actually real...
He also made a video. In this video, you can see very clearly that there are indeed several drooping branches in front of you.
These leaves are all "blind spots", but it is clear that the phone can be photographed.
So the whole incident is covered up: the foreground leaf accidentally enters the camera to block the face, plus the use of "portrait mode", the iPhone mistakenly treats the leaf as the main body...
At this time, some friends will have questions, leaves and people are not on the same plane, why can they still recognize each other?
From a photographic point of view, this is actually an "optical illusion", which can also be called "spatial compression".
It will make things that were originally far away from us feel as if they were behind when they were filmed.
One of the most typical examples is the pigeon in the square.
The pigeon in this photo is larger than the size of a man.
In fact, it is caused by the pigeon being too close to the camera. Although everyone understands that this is a mistake of vision, they will still sigh: this pigeon is really big...
The Cantonese said that this pigeon should be delicious.
Everyone can be deceived by mistakes, not to mention mobile phones.
But that doesn't explain the missing head.
The machine brother felt that this time should be combined, and the netizen said "fusion photography" before.
As I said just now, the mobile phone takes the leaves as the main body, but it is still taken several photos at the same time for the AI to process. The AI deliberately retains the main body (leaf) and blurs the background (head), so the brain shell is gone.
This is why behind the leaves, there is a black outline that resembles a head.
This incident is essentially an algorithmic error of the iPhone. But this is not the first time apple has "de-headed action".
Before lidar was added, if you take the portrait mode to shoot glass objects, the top will basically disappear.
Sometimes don't talk about glasses, even straws can give you a whole thing.
In the comment area of the elder brother, some netizens also sent out their own "supernatural" photos.
Like this netizen, let alone "fusion photography", this direct combination is not closed, just like the watermark is typed on.
Coincidentally, in the "portrait mode", the Xiaomi 10 Pro of the previous year also flipped the car once, that time it was the little boy's brain shell "cut" off a piece.
Putting aside this algorithm error, the effect of xiaomi's entire photo is still very good. Compared to Apple, at least it still saved its head.
Harm, you will never know AI, will give you a whole set of wonderful photos.
Time goes back, even in the early years when AI only assisted in exposure, it was not uncommon to overturn.
For example, the "face first" function that everyone is familiar with, in short, the camera gives priority to meeting the normal exposure of the face, as for the other parts, it will follow the fate.
Well, that's probably the effect:
However, with the hardware upgrade of mobile phone cameras now, the amount of light entering has become larger, and even dark skin tones can be recognized, which rarely happens again.
It can even focus on restoring the details of the shadows, and it can be said that the AI algorithm has begun to stand up.
But the friends know that in the machine brother, AI is handsome but three seconds -
In addition to being used for imagery, there are algorithms like Google injecting AI into album management. Stitch together several similar photos to form a high-quality panorama.
A meal described as fierce as a tiger, a look at the results...
Directly staged the "Attack on Titan" thriller photo.
In the past, there were always people who said that "AI dominates human beings" threat theory. But the machine brother just looked at this gang, even a photo is not good AI, really does not deserve the four words "artificial intelligence".
"Artificial mental retardation" is not even close.
Here, the machine brother is still sincerely advising manufacturers, the algorithm small overturn: a color, a lack of exposure... Let's just put up with it.
I just beg not to make up this kind of hades photo, what to do to scare the crying child?