[Q] Green tint at photos from Defy camera - Defy General

Hello,
I found green tint at photos, now it's much easier to find it when I have grey sky and snow.
I'm preatty sure you will find it yourself:
img89.imageshack.us/img89/8472/motoroladefysamplephoto.jpg
The strongest effect is in top right corner, but it affects other corners as well.
Also in center there is some big diffused purple spot.
To analize this issue I took few photos of A4 white sheet in daylight:
img695.imageshack.us/img695/72/motoroladefyresizedonly.jpg
To the same photo I added levels in Photoshop to better show the problem:
img844.imageshack.us/img844/7041/motoroladefywithlevels.jpg
I also compared it with Nokia 5800, my previous mobile with quite mid quality camera:
img831.imageshack.us/img831/7076/nokia5800resizedonly.jpg
You can see photo is all purplelike, but homogenic so it suggest that white balance didn't recognize correctly
white color. There is also green frame around picture, still smaller than in Defy.
The same picture with levels:
img510.imageshack.us/img510/1985/nokia5800withlevels.jpg
Seems to me pictures from Nokia 5800 are better than from Defy. Furthermore I had to modify exposure and chage level from 0 to 2
because picures straight from camera were too dark:
img513.imageshack.us/img513/8472/motoroladefysamplephoto.jpg
I'm not sure if this is "feature" of my particular phone or it affects all Defy phones and we have to live with it.
Could you do just simple test and take photo A4 sheet in daylight and share with effects here? Sheet should cover viewfinder fully.
Thank you in advance.....Rafal

Related

Jelly lens - Marco, Wide angle, Polarizer and lots more

I was looking around for cell phone camera lenses and found these
Jelly lens
A forum notification is telling me I can't post the link but google it they're pretty awesome, 12 in all, and they're only 4.40 each which is pretty nice.
Kinds and Descriptions
Wide Angle / Fish Eye: Creates a wide angle panoramic shot or fisheye effect photo easily
Stretch: Turn the lens to stretch your photo horizontally or vertically
Hexa-image Mirage: Produces beautiful kaleidoscope effect with 6 duplicated images
Tri-image Mirage: Produces beautiful kaleidoscope effect with 3 duplicated images
Heart/ Blue Filter: 2 lenses included, put a heart shaped frame around your photo or filter it through a blue tint
Star/ Antique Filter: 2 lenses included, put a star shaped frame around your photo or filter it through a classic amber tint
Polarized/ Vivid: Reduces light reflections and turns the sky more blue
Macro Close Up: Enables your camera to take close up photos and focuses on tiny details
Soft Lens: Provides a romantic border to portraits
Starburst: The center of your image will stay focused while the edges are blurred outwards
Shaking Vignette: Blurs the surrounding like shaking while the middle remains clear
Sparkle: Adds twinkly stars to your photos. This lens makes lights and reflections appear as twinkly starbursts
Pretty clever little lenses! http://www.jelly-lens.com/index_main.php
I am tempted to grab a few to play with since they are so cheap, but my SLR would spit on me.

Hot Pixel Camera Problem?

Hi everyone, just a few minutes ago i was looking for a completely black wallpaper and it came to my mind to just put my finger over the camera and take a pic, as soon as i put my finger over the lens i saw a few red and blue spots on the screen...i then put it over a black cloth and i could still see the red and blue dots(look like dead pixels but on the sensor?) its best visible when camera is set to 8mp. I am just wondering if this is normal or if i have a faulty camera..the dots dissapear as soon as there is some light i will post a pic in a sec. Please can anyone test it out by turning on the cam set to 8mp and put your finger over the lens so its completely dark wait a bit ( 30-40sec) and look at the screen.
Edit: Also when you put the exposure to max you can see it even better.
Did a little research and it is called a hot pixels.
Hi,
At 1st excuse my english please!
You dont need to be afraid of this, this is totaly normal an youre camera is ok!
The sensor generate colors from RGB (red, green and blue) and what you see there is no more then the try of the sensor to put colors in the dark!
Greetings
Alef
Yes but they are on the same spot every time and they are flickering, the only way you can notice it is in a dark room and when you put somthing over the lens so its completely dark then i get flickering hot pixels on the same spots. Please can anyone else try this and let me know if you see it on the display/viewfinder.
A lot of sensors can suffer from that, that's why normal cameras offer pixel mapping to disable hot pixels. Unless you see those spots show up in final images I would say don't worry about.
It does show on the final picture. That is why im asking people to check if they have same thing.. if every one has it i wouldnt worry about it but if not i will go exchange it while i can. Its bright flickering white, red and blue dots. Looks exactly like a stuck pixel and not the rgb noise ones that are visible on the whole screen.
Sent from my LT15a using XDA App
Hi,
I found an explanation for this:
The CCD-Sensor interprets residual voltage (<----Hope the right word! ) as brightness information what results in those colored spots!
As I said, its totaly normal!
Greetings
Alef
If you take a picture in a dark room, the camera will boost the gain in order to try to take a decent picture. It will boost the gain until it sees enough content in the image. The darker the room, the more the gain will be boosted.
By covering the lens youve removed all of the light. The camera is therefore boosting the gain as much as it can until it's picking up what is effectively noise in a few of the pixels (some will always be more noisy than others). This wont have any noticable effect on a picture taken at normal light levels.
Thank you everyone for the explanation
Sent from my LT15a using XDA App
I actually noticed this, too. I thought I had a dead/hot pixel on the screen, but it only appears when it's on viewfinder mode. It doesn't really appear in the image taken itself (or maybe I just don't notice) so I never really minded it after the initial discovery. Glad to know this is just normal
I'm noticing this too.
except differently, i'm not seeing individual spots, i'm seeing hair-like artifacts.
Pictures:
any suggestions?
Hmm that looks really bad.. did you solve it?
You will have to send the phone where you bought, I think it's a manufacturer's faulty

[Q] Neo - Question about camera compression

I'm thinking to buy a Neo this week and it will be my first Android phone. In a few reviews I've seen some complaints about the .jpg's being over compressed using the stock camera app. If you use a different camera app are you able to set it for less compression and better pictures?
Hi mattarse
The jpg compression is fine as it is, I believe the discussion on the compression has been started due to very high expectations of the camera in the new xperia phones. The camera IS very good I think considering it is a mobile phone with a very small camera sensor.
Pictures will when you magnify them on your pc never look as good as a dslr or newer compact camera with bigger sensors and better optics. This is probable what started the jpg compression discussion as it would have been nice to just change the jpg compression level and have super sharp pictures even when you zoom in.
The Camera Advance app will give you the option to change the compression but my own tests show no visual difference from the xperia camera app and the picture from camera advance. File size differences was 1MB from xperia camera and 2.2MB from camera advance app.
Camera360 Ultimate will give pictures at the same sizes as the xperia camera app even when you select the finest compression level.
I personally prefer to use the xperia camera app compared to camera360 and camera advance.
I have allways enjoyed photography and normally use a dslr. This is actually the first mobile phone where I have started to use the camera as I have allways disliked the picture quality from my older mobiles. It is amazing to see pictures at iso 1600-2000 being useable from this small camera, the low light performance is very good and the dynamic range under sunlight is also very good.
I have the xperia arc and not neo, but I belive the camera is the same on both mobiles. Have seen some samples from neo where it actually looks like it is producing better pictures, could be due to different optics in the slightly bigger mobile or just differences in firmware.
Well I've bought a Neo for my wife recently. But was surprised also to see the size of the files for an 8mp camera. I was also surprised there is no option for the level of compression.
What is more important that the camera does not produce good quality for darker rooms.(in a room with 15*10W halogen light bulbs). The pictures have a visible yellow-greenish tint and a lot of noise. I haven't tried on outside just yet.
May be my expectation are too high. But I still think this is a marketing trick. They could have easily put a sensor with less density (5mp or 6mp) which is supposed to produce less noise.
valqka said:
Well I've bought a Neo for my wife recently. But was surprised also to see the size of the files for an 8mp camera. I was also surprised there is no option for the level of compression.
What is more important that the camera does not produce good quality for darker rooms.(in a room with 15*10W halogen light bulbs). The pictures have a visible yellow-greenish tint and a lot of noise. I haven't tried on outside just yet.
May be my expectation are too high. But I still think this is a marketing trick. They could have easily put a sensor with less density (5mp or 6mp) which is supposed to produce less noise.
Click to expand...
Click to collapse
I do believe the exmoor sensor has improved low light performance compared to a regular mobile camera sensor. But this is still only a small camera and even my dslr would struggle indoor with only artificial lighting unless flash is added.
Have only shot a couple of low light pictures with my arc both outside and inside and agree that pictures especially at iso1600-2000 contain a larger amount of noise. I would say the pictures are very good compared to my old mobile which was useless in low light and good compared to my compact camera.
You can change the scene mode to make the xperia use slower shutter speeds and lower iso, that will give you some very nice scenery shots in low light with little noise. I have to my surprised shot a few sharp fotos at 1/4 shutter speed in low light, that would not be possible without fixed mounting on my dslr or an extremely steady hand.
You will ever only be able to archive good low light pictures with expensive slr and optics. One thing I have learned using slr is that light is king, you can not get enough light if you want sharp, good looking, strong colors etc.
Now you got me interested in doing some tests to compare the low light performance with my dslr and compact camera
Well hygge, I am quite an amateur in shooting but I also know from my extended zoom camera that noise in low light is a nightmare (at least I use Program mode and not automatic ).
I really got the phone form several days and did not had the time try it good. I've just changed settings from 6mp 16:9 (strange for default settings) to 8mp.
Then the LED flash came on automatically. But the result was not good. (3 from 4 shots were with yellow-green tint and one was too bright (or is more correct over-exposed). But I must confess the scene was complicated if this matters at all: my baby in the bathing tub. So there is water, reflection.....
But anyway I put my bet on the dslr with a huge distnace
valqka said:
Well hygge, I am quite an amateur in shooting but I also know from my extended zoom camera that noise in low light is a nightmare (at least I use Program mode and not automatic ).
I really got the phone form several days and did not had the time try it good. I've just changed settings from 6mp 16:9 (strange for default settings) to 8mp.
Then the LED flash came on automatically. But the result was not good. (3 from 4 shots were with yellow-green tint and one was too bright (or is more correct over-exposed). But I must confess the scene was complicated if this matters at all: my baby in the bathing tub. So there is water, reflection.....
But anyway I put my bet on the dslr with a huge distnace
Click to expand...
Click to collapse
That would have been a nice picture, but it do sounds like a challenging picture with the reflecting. Remember to record movies of your baby in the bathing tub. My daughters now 3 og 5 years really enjoy looking at short movie clips of them as babies splashing in their bathing tub
(they love playing games on the xperia, mostly drawing apps )
What I have seen so far is that the xperia tend to prefer low shutter speeds in low light situations. I still only have a handfull of shots to base my conclusions but with flash on it was using 1/25 sec shutter. This is too slow taking pictures of moving kids, you will need 1/60 or even 1/120 which is normally only available on slr's. Without flash it has been 1/8 and high iso, must admit it was under circumstances I would never have used my dslr without flash and maybe a bit unfair to judge the xperias camera capabilities.
I agree that the wrong color balance will totally screw up the pictures, have you tried setting the white balance manually in the camera? A setting I have not yet changed on my xperia and are not aware what options are available.
I have now made some quick comparisons of my three cameraes under low light conditions.
Might upload test pictures later when I have the time, for now you will have to trust me
Camera 1. Xperia Arc 8MegaPixel
Camera 2. Olympus u Tough 12MegaPixel
Camera 3. Konica Minolta 5D dslr 6MegaPixel
Test 1 without flash
Xperia 1. Kamera advance app with lowest compression, no flash
ISO: 1000
Exposure: 1/8
Olympus 2. Default settings with disable flash
ISO: 400
Exposure: 1/4
KM 5D 3. Full auto, no flash
Could not focus, too little light, camera suggested 3-4 sec shutter speed
(was using OEM lense with bad aperture which gave it problems focussing, could have used a better lense but decided to use OEM lense to keep the comparisons fairly)
Results:
Olympus had only a tiny bit more details and allot more noise, picture was looking very bad up close.
Xperia Arc, even at iso 1000 the noise was lower than my Olympus and the picture looked more clean with nicer colors. I definitely prefered the Xperia result.
The olympus will not go lower than 1/4 shutter speed and iso 400. I selected night scenery on the Arc and got a picture with iso 160 and shutterspeed 1/2. This picture had even less noise but was slightly blurred at 1/2, need a more steady hand but still a very useable result.
My DSLR would not take a picture without focus.
Winner:
Xperia Arc, higher shutter speeds and a cleaner picture with less noise. I was surprised to see the loss of details on my 12MP Olympus at ISO 400 compared to the Xperia Arc.
Test 2
With Flash:
Xperia 1. ISO 400, shutter 1/24
Olympus 2. ISO 100, shutter 1/30
KM 5D 3. ISO 100, shutter 1/60
Result:
The Olympus with flash and ISO 100 gave a sharp, low noise picture and the 12MP provided better details than the xperia could show. The flash on the xperia is not very strong and it was not possible for me to configure it to use lower ISO than 400. The xperia arc picture did give a nice result with low noise.
The 6MP DSLR with flash give the same amount of details as the 12MP Olympus, my old DSLR is still going strong and a better lense will give an even sharper picture
Winner:
KonicaMinolta 5D wins, followed by Olympus. Xperia Arc still gave a nice result but with less details and more noise than the other two devices.
One last test at a really dark area without flash also proved xperia arc to be the winner. My Olympus would not go lower than 1/4 iso400 while xperia used 1/8 iso2000. The motive was only visible on xperia arc and even a fairly noisy picture at iso2000 is better than no picture at all
My own conclusion is that the xperia arc/neo is really good at low light performance and even outperforms many compact cameras, but the the weak flash give some serious limitations. The low shutter speeds will probably also be an issue taking pictures of moving motives in low light.
(did shoot a couple of shoots with sony camera app and did not notice any difference from Camera Advance, I used the 3PP camera to use as little jpg compression as possible but I doubt the pictures visually differ much)
It would be interesting to do some tests during daylight as well, it will not benefit from the improved low light performance compared to other camera sensors. I am curious to see how the dynamic range of this sensor is, can it compare to my Olympus compact camera then it would be a serious contender as my primary point and shoot camera as long as flash is not needed.
Thanks forthe replies - I'm not expecting amazing things from camera on a phone Just want to make sure that software isn't unnecessarily hindering the hardware.
It also looks like it will be a couple of weeks before I pick one up...Unless i opt for something else in that time, but for a smallish screen size Android phone this currently looks the best. I do wish it had gorilla glass - but you can't have it all
Now I've found a confusing thread about in line remotes on the headphones that I need to figure out (yes I do seem to put way too much thought into these things!).
valqka said:
I really got the phone form several days and did not had the time try it good. I've just changed settings from 6mp 16:9 (strange for default settings) to 8mp.
Then the LED flash came on automatically. But the result was not good. (3 from 4 shots were with yellow-green tint and one was too bright (or is more correct over-exposed). But I must confess the scene was complicated if this matters at all: my baby in the bathing tub. So there is water, reflection.....
But anyway I put my bet on the dslr with a huge distnace
Click to expand...
Click to collapse
I think the yellow green tint you're seeing will be from the lights in the room - you see this on most cameras of any quality, if you have a white balance setting you should have one for indoor/halogen lights. It's also normally easy to fix in Photoshop.

Mango photo's post-processing/hdr

Hi everybody!
I've recently installed mango on my HD2 (awesome os btw) and while taking photos with a camera-button, they are all blurry (because hd2 doesn't have a 2 press button for camera). Now in mango you can click on the screen and then it focuses.
What I've seen is that photos have a different tint when taking pics with focus or without it. When you focus first it does some color correction and it's almost as it's a HDR (the brights are not as hard as they are in preview or on pics without focusing first).
In the attachment you can find the comparison. The first two pics show the difference of focusing or not before taking a picture. Note the increased color vibrancy and contrast.
For the last photo I don't have a comparison, but on the image without focusing first the light of the lamp was blown out and everything else was too dark. This time it's almost as it was shot with HDR.
Now I don't really know if anybody has noticed this on official devices, but if you can, try taking a picture of a dark room with a bright light source, with and without focusing. I'm sure it will make a difference. I'll try later to take some more pics. But this is interesting Maybe that's one of the 500 new features.
NOTE: these images were not edited with photoshop! Only the brightness of the first 2 was increased by 100 units, because it was a dark picture. The last one is the original one. Also: these were not "auto-fixed" in WP first
EDIT: One other thing I'm noticing now is that the screen brightness changes when viewing these photos. The screen goes brighter when viewing the photo with focus. Microsoft is probably playing the eye-candy-game with us by manipulating the color/brightness and contrast of the photo.

Pink tint in centre of camera when in low light - faulty?

I've seen cameras in the past that exhibited a pink tone in the centre of the image. My G4 does this too, though it is only noticeable in low light. For example if I take a photo of the grey of my cord trousers in low light the very centre of the image will have an obvious pink tint. If I take a photo in average to normal light it's not visible.
Does anyone else have this issue? Mine is an O2 UK phone, brown leather back.
The same photos taken on my S6 have no tint at all.
it looks like a faulty phone ,-, try to get a replacement for it
I've just taken it back. Might wait till I can get it for a better price for the time being, especially now I've got it out of my system
I'm wondering if the pink you're seeing in your low light pics could possibly be the infrared auto focus? It could be that the camera snaps the photo b4 the light goes out. That would explain why you see it in low light photos only.
You cannot see infrared light with your naked eyes, but a cell phone camera can. Have a friend watch you through another cell phone or camcorder as they stand in front of you, while you snap a photo of them. Tell them to look for a flickering red light coming from your camera.
If that's the case, it can be fixed with a software update. The light needs to go out b4 the shutter opens.
Sent from my Nexus 7 using Tapatalk
---------- Post added at 12:07 AM ---------- Previous post was at 12:05 AM ----------
I can't remember if the G4 has manual focus, but if it does, try using it for the same test. Maybe the infrared light won't come on and the pink will not show up.
Sent from my Nexus 7 using Tapatalk
leebo said:
I'm wondering if the pink you're seeing in your low light pics could possibly be the infrared auto focus? It could be that the camera snaps the photo b4 the light goes out. That would explain why you see it in low light photos only.
You cannot see infrared light with your naked eyes, but a cell phone camera can. Have a friend watch you through another cell phone or camcorder as they stand in front of you, while you snap a photo of them. Tell them to look for a flickering red light coming from your camera.
If that's the case, it can be fixed with a software update. The light needs to go out b4 the shutter opens.
Sent from my Nexus 7 using Tapatalk
---------- Post added at 12:07 AM ---------- Previous post was at 12:05 AM ----------
I can't remember if the G4 has manual focus, but if it does, try using it for the same test. Maybe the infrared light won't come on and the pink will not show up.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Already considered that idea but the simple test was to cover the IR port up with my finger. It still showed up. Thanks anyway
Um, I don't think the camera uses that IR port. That is for controlling your TV.
For example, many smartphones do not have an IR port, yet they have auto focus. Try what I suggested b4 dismissing it. At least try taking a pic of yourself in front of a mirror. The pic should not catch the red IR light. If it does, there's some kind of timing issue.
Signature edited to appease the OCD's
leebo said:
Um, I don't think the camera uses that IR port. That is for controlling your TV.
For example, many smartphones do not have an IR port, yet they have auto focus. Try what I suggested b4 dismissing it. At least try taking a pic of yourself in front of a mirror. The pic should not catch the red IR light. If it does, there's some kind of timing issue.
Signature edited to appease the OCD's
Click to expand...
Click to collapse
I mean the IR port on the back, not the top! The one that blinks. I've tried covering all the sensors and there's still a pink tint.
Think your phone is a broke one, call you agent and get a new one
Verzonden vanaf mijn HTC Desire met Tapatalk
Has this been resolved by a replacement? I have the same issue with the pink tint/hue in the camera and I have the T-Mobile 811. I'm wondering if others have the same issue
Reminds me of the pink tint issue with the M7s. Did you feel any heat around the lens area?
In the case of the M7 it was crappy heat issues. If this happens again on the G4, I'll be getting rid of this real quick
The phone was cool and it still showed. I don't think is the heat because when I took pictures outside there was no pink tint. It's on low light conditions that it happens. I also had an issue with random dimming erratically with the auto brightness off. I did a warranty exchange and getting it tomorrow. I am hoping it doesn't have the same issues.
Got the replacement by and still has the pink center hue in the camera. This is bs. I believe people have this issue and they don't realize it. This can't be a coincidence. I don't even know what to do now. I can't return the phone since I'm past the return period.
I had the same nagging opinion with my first LG G4. I tried comparing it to the LG in my T-Mobile store but it was hard to replicate.
In the end, I replaced it for a different issue. There is still a pinkish hue near the center in some photos, particularly in lower lighting, though maybe a little better than the first (could be placebo effect)? I'm satisfied in it being just a quirk of this phone under some conditions.
Take a look at the "Post your LG photos" thread. Post some of your photos here or on that thread.
Not happy with the replacement. I still have the pink center. You definitely notice it on a white background . The crappy part is when to take video or pictures, the pink shows up. I used manual controls to change white balance to make the pink go away but it becomes way too white and unnatural. I'm going to open up a thread in the T-mobile section. I'm also going to contact LG and see what nonsense they are going to spew.
That's not pink, it's magenta, tmobiles signature colour.
If i remember correctly, lots of Xperia z3 users had the exact same issue, maybe they found a solution that can be transferred over to the g4?
There is a thread about green spots appearing in pictures for some people.
It seems that the green spots do not appear in the actual RAW (DNG) files themselves. Meaning that the green was not captured by the image sensor, and was instead added during the image processing that created the JPG.
Note that you will likely need to pull the DNG over to a computer and view it in appropriate software that can display DNG files (UFRaw is free). You will still see it on the screen/gallery on the phone, as those are showing the JPG.
Please try taking a picture in Manual, with JPG+DNG output, and check if the DNG shows the pink.
Edit: Other thread, about the green spots issue:
LG G4 green spot appearing in photos
It has nothing to do with the M7 purple tint thingy, this is something I saw in numerous old phones I had, mainly Sony Ericsson ones and perhaps Desire HD. Any white background(like walls) indoors will give the pink spot on older phones, I wonder how it's showing on G4
i tested and verified this pink spot in same conditions 10 minutes ago. lots of z3s also have the same problem afaik. i m starting to guess this problem originates from the lovely sony lenses. does anyone know which lens lg camera uses?
solventh said:
i tested and verified this pink spot in same conditions 10 minutes ago. lots of z3s also have the same problem afaik. i m starting to guess this problem originates from the lovely sony lenses. does anyone know which lens lg camera uses?
Click to expand...
Click to collapse
IMX 234 RS
LG G4
now i m sure. sony destroys everything.

Categories

Resources