[Q] remove fisheye effect on front facing camera, processing hopefully - Galaxy Note 4 Q&A, Help & Troubleshooting

http://www.tricedesigns.com/2013/08/09/two-ways-to-remove-fisheye-from-gopro-images/
This article is processing images after being taken to reduce this fish eye effect. It's actually not half bad and I truly believe the front facing camera is horrible unless this can be corrected. Yes it's hardware fisheye effect but I'm curious if anyone has a workaround?
I won't rest until this is resolved

Can't say i've noticed it for my selfies, but if they're very important, get a big piece of card, put it behind you and curve it to your tastes as a background before taking your selfie

Related

Camera Fix for the HD

I searched for a camera fix for the HD camera with no success. Does anyone know if there's going to be a fix in the near future? I'm sure that ya'll have the same problem that I do. Camera takes pictures that look old & rustic. Brownish tint to them & not very sharp for a 5 MP camera. I have adjusted all the settings for light & junk but nothing fixes it. As far as I'm concerned, it should take pictures IDENTICAL to a normal 5 MP digital camera. I can promise you that it's not doing that. Any help would be great, thanks in advance.
Vampire2800 said:
I searched for a camera fix for the HD camera with no success. Does anyone know if there's going to be a fix in the near future? I'm sure that ya'll have the same problem that I do. Camera takes pictures that look old & rustic. Brownish tint to them & not very sharp for a 5 MP camera. I have adjusted all the settings for light & junk but nothing fixes it. As far as I'm concerned, it should take pictures IDENTICAL to a normal 5 MP digital camera. I can promise you that it's not doing that. Any help would be great, thanks in advance.
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Why should it take pictures identical to a 5MP camera. The lens on the front is going to be vastly different, the sensor maybe 5MP, but what is the spacing on the sensor pixels? The closer together, the noisier the image. Colour balance will be down to the sensor too.
Regards
I'm not talking about the front camera. The normal camera on the back. I understand about the pixel thing, but it still shouldn't be so brownish, right? The pictures look like an old Polaroid picture. You know, the one's that spit the picture out as soon as you took it. Old, brown & nasty looking.
My pictures come out fine...
Hmmmmmmm...................... I'll just keep playing with it.
Vampire2800 said:
I'm not talking about the front camera. The normal camera on the back. I understand about the pixel thing, but it still shouldn't be so brownish, right? The pictures look like an old Polaroid picture. You know, the one's that spit the picture out as soon as you took it. Old, brown & nasty looking.
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I'm not being flippant, but is it possible you might have a dirty lens?
Lol, that was the first thing I tried. Cleaned both sides of the back cover & cleaned the lens on the camera. Good idea, though.
The "5mp" doesn't really mean much, as stated earlier, if the sensor and lens are poor quality. As far as I know, HTC haven't released a phone with a reasonable quality camera, yet.
I bounce between different smart-phones (just coming back to WM now, after a year with S60). I can say that many of the S60 devices (in particular the Nokia N95, but also the N82 with Xenon flash) have very good cameras, being similar to low-end digital cameras in daylight. They lack optical zoom and tend to over-compress images, but have good quality lenses.
imho hd camera is excelent
pictures look old & rustic only if you make them inside house without using the artificial light setting, and this is also a general rule, not specific to HD.
Never seen a good phone camera yet, including the latest 8mpixel ones. They're all terrible.
Never
This camera will NEVER take pictures anywhere near what real cameras do. The photo sites are so tiny, they are smaller then the length of waive of light. Therefore noise, lack of dynamic width, etc. No patch will ever fix that. Sorry
open back cover , clean the lens , you will see a huge difference in quality
Vampire2800 said:
Lol, that was the first thing I tried. Cleaned both sides of the back cover & cleaned the lens on the camera. Good idea, though.
Click to expand...
Click to collapse
Not that I'm doubting you or anything but you do realize that the back cover only has a hole through to the lens?
You might try setting the brightness higher:
If you touch the small rectangle near the bottom right side of the screen (when holding landscape)
Then select the gear symbol, then select brightness from the menu and hit the "+" until it looks better that will remove most of the darkness.
The camera is a plain disappointment. In the time the camera autofocusses, I could have bought a Sony Ericsson C905's, create a good looking photo (with xenon flash) and upload it to imageshack.
If 'your object' makes the slightest move, your photo will be blurry . This is also the case when you attempt to make a photo of someone that isn't aware he or she has to be waiting for the autofocus lag. Head moves >>> blurry pic.
iPhone camera shots are way better quality, don't ask me why. Overall my Touch HD scores 8/10, where atleast 1 full point is taken up by the camera
and it's better don't speak about the very laggy video recording
mach03 said:
iPhone camera shots are way better quality, don't ask me why.
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Too many megapixels on a tiny sensor = major noise problem = blurring from denoise.
Even 2mpixels is too much for sensors this size, but people buy on marketing numbers of megapixels, not quality. You can just imagine the whining that would occur if the Touch HD came out with 1.3mpxiels, even though it would produce better pictures.
arfster said:
Too many megapixels on a tiny sensor = major noise problem = blurring from denoise.
Even 2mpixels is too much for sensors this size, but people buy on marketing numbers of megapixels, not quality. You can just imagine the whining that would occur if the Touch HD came out with 1.3mpxiels, even though it would produce better pictures.
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hehe, thats true.
mpixels dont count as much as the general public belives. the more mpix. the higher rezolution you can print the picture in. but for ordinary photos, 1.3 mpix would be enough, as long as the optics is good.
Personally, I rarely use a phone camera.
I use either my Olympus 720SW or Canon EOS.
​
the camera sucks **** compared to the n95 and the video recording is horrid. i know it's not meant to be as good as a dedicated camera but this is pretty bad given the price of the device.
i concur with mach03, move the camera a slight bit and eveyrthing gets blurred. one way i've semi gotten aorund this is to unlock the burst functiona nd take a sequence of pics and hope one or two coems out alright, not the most economic way to do it though...
i would ahve thought that maybe there's a way to tweak the camera to stop the blurring or even affect how much light is picked up by the lens which should also help with clarity
Vampire2800 said:
I'm not talking about the front camera. The normal camera on the back. I understand about the pixel thing, but it still shouldn't be so brownish, right? The pictures look like an old Polaroid picture. You know, the one's that spit the picture out as soon as you took it. Old, brown & nasty looking.
Click to expand...
Click to collapse
A silly idea, but seriously, did you check if maybe, just maybe, you left the "sepia" effect turned on???

Main camera not centered?

I've read a lot about the MT4G FFC not being centered in the frame, but I just noticed today that my main camera is also not centered. In fact, it is so far off that the "insert" that surrounds the sensor lens itself is almost covering the lens. My picture quality seems alright, so it seems this issue is not affecting picture quality, but how do I know for sure? Does anyone else's phone have this?
Sounds like you might have a bad build. Both my cameras are perfectly centered so you might want to consider replacing it.

Disable Wide Angle Shots

Ok we all have the same phone and the same lense front and back
This is specifically for the FRONT camera ... we all know the pictures are distorted ... its squashed from the center and appears long at the edges...
owing to the fact that it has a Wide Angle Lense
Which looks very bad during selfies
We cant change the lense as its a hardware part.
But is there an app .. or can we develop an app that corrects the distortion created by the wide lense and give us a straigt propotional shot ?
Im uploading a picture from another website showing the distortion of the lense. its not my own pic.
As im into Bodybuilding and also i take a lot of selfies ... my pictures look weird on my phone compared to my friends. My body looks normal on friends phone whereas it looks out of propotion on mine.
Lets discuss this ... cause im seriously considering a iPhone 6 over this phone now. but obv im falling back cause of budget issues.
its weird No one else hates the Distortion during selfies ?
a small bump up
I doubt there will be any way to fix it if it is the lens itself, if it's firmware, custom ROMs might be able to do it, Xposed Framework etc
No idea how though, I had noticed I looked like Bruce Forsyth a while back, but never took much notice as I don't use the front camera for much more than daft pics on whatsapp anyway
Hi all,
I am also interested about the resolution of this feature: there's no way to disable the wide angle? you have found a solution?
thanks in advance

Can you use the wide angle (back) camera to take selfies?

Hi all - it sounds like the front (selfie) camera does not take the best pics.
One of the uses I wanted for the G6 is to use the back camera (the wide angle one) to take selfies instead.
I won't be able to see the screen, but with the wide angle lens, I don't really need to do much framing I'm guessing.
The only thing that I'm concerned about is the lack of auto focus and if the wide angle camera can focus on subjects about 1 metre away from them.
Does anyone have a G6 who could comment / or post a sample pic of this? This is pretty much the dealbreaker for me to get this phone.
Cheers!
I'm interested in the same question! Would be great if anyone could comment on this, hence bumping this thread.
Yes. Front facing camera is not as good as it should be. Specially in low light situation...
This, and lack of LED notification light are the biggest flaw to me
Back cameras takes good selfies though. I don't have any problem with framing or autofocus. Does a good job with defocusing background and shaking effect is at minimum thanks to new image stabilizing system.
Hope this help you
Cheers
Someone here at xda calculated that all things between 35cm and infinity are in Focus for the wide angle camera.
I also made some tests and I think that he is not totaly wrong with his 35cm.
So taking selfies should be ok.

[Camera issue] stretching sides?!?

hey guys
I have seen this problem in my xc rear camera photos and also in one my friends' xc, so I was wondering if there is a fix or if it is hardware issue or software related,
photos taken by rear camera seem to stretch the sides of the picture and also are a little blurry in sides
for example if you take a picture of a bunch of people standing next to each other, you notice that faces in the sides of the picture are a little stretched and not in real size!!!
Kianush said:
hey guys
I have seen this problem in my xc rear camera photos and also in one my friends' xc, so I was wondering if there is a fix or if it is hardware issue or software related,
photos taken by rear camera seem to stretch the sides of the picture and also are a little blurry in sides
for example if you take a picture of a bunch of people standing next to each other, you notice that faces in the sides of the picture are a little stretched and not in real size!!!
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I have noticed the same thing. In portrait photos too the heads look stretched vertically. Not happy at all. I'm going to be selling this phone. To be honest my old Xperia Z took better portrait photos than this one.
This is mostly due to the optics of such a small image sensor and super small flat plane lens atop the camera. Anytime the focal length and the lens curvature are not perfect you get some blurring, and they are only perfect at a single point in any camera systems range of focus.
The stretching of the sides is due to the super short focal length/wide angle lens. Same issue happens if you stick a 14mm close up/fisheye lens on a slr camera. This portion of the problem is often corrected for in higher end cameras with software, Sony recently pushed an update to other xperia phones with the same or similar camera to run the algorithm to correct the un-equal representation.
Compounding the issue :
Smaller flat plane optics cause a lot of chromatic abortion as you radiate out, it's the worst in the corners. This gives it a vignette style are of focus and is just not avoidable either.
Sony made the choice to do a lot of image smoothing to hide their noisy camera and it also happens to hide the abortion as a blur effect. I'd rather have the abortion personally than loosing details in a blur.

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