When you read a review post on the web or watch a review video on YouTube of a certain smartphone, the reviewer will probably spend time commenting the white balance performance of the camera. But what is white balance exactly and why we need it on our smartphone camera?
White Balance
The color of the object looks different from their intrinsic color in different light environment, and white color changes the most significantly. For example, a piece of white paper looks a bit yellow under the light from a filament lamp, and looks a bit blue under the blue sky. Our powerful eyes can correct the color cast caused by different light environment, so we seldom notice the changes and feel good. Hence we can say that our eyes have the ability of Auto White Balance. Cameras need such feature as well, otherwise the pictures can look quite awful.
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Adjust white balance on smartphones
When we take a phone, the smartphone camera automatically performs white balance, which we call it Auto White Balance (AWB). Most of the time, AWB works perfectly and the color of the picture looks accurately. But occasionally, it does not meet our demand precisely or we have a different from normal demand. Then we need to adjust the white balance manually in the camera APP. Below picture taken with different white balance setting show us that we can take very different photos by adjusting the parameter of white balance.
It is easy to have above different white balance setting done on our smartphone. For example, on our smartphone, open the camera APP, choose to use the Pro mode. And we can see the “AWB” logo as shown in below screenshot.
Thanks for reading my very first post! Any ideas or suggestion, please feel free to leave a comment below.
Congratulations for this first message!
This looks to me as an original contribution from you, as I couldn't find on Internet a content exactly like yours... whereas sometimes people post messages containing the same text taken from the Internet pretending it's their work...
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Well, i found that having -2.0 thru -1.0 EV actually speeds up the camera quite a bit. now it depends what type of lighting your in, but atleast now some interior enviroments are faster!
o and also put the white balance on the moon or the light, the picture usually looks best then.
you might notice in the picture i have it set at the smallest resolution, that has nothing to do with this, it was just an accident it was set to that.
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sorry, what do you mean -2.0 thru -1.0 EV? I would like to try it
I'm guess the megapixels.
EV stands for "exposure value", also known as "stops". The Kaiser, as well as most point and shoot digi-cams, goes from -3.0 to +3.0 in half step stops.
ooo snap.. nice.. It kind of works but ya depends on lighting ..:-(
Thanks !
Sorry, just went through the entire menu system on the camera and couldn't find anything resembling "stops" or "ev". Anybody know where to find it?
I have a Tilt.
When you open the camera app, at the bottom of the screen (on the left if you hold the phone upright) there will be a little "handle" that you can click on. It's dark grey in color. Click on that and you can adjust the EV value there.
Works great for me. thanks man
mikeeey said:
Well, i found that having -2.0 thru -1.0 EV actually speeds up the camera quite a bit. now it depends what type of lighting your in, but at least now some interior enviroments are faster!
Click to expand...
Click to collapse
When you decrease Ev, shutter speed (Tv) automatically increases. At the cost of getting more speed, your picture will be darker. No problem, just use your favorite editor (photoshop) to increase the exposure again (using +Ev, Levels, or Curves). However, doing this will make your image noisier (more grains) and losing quality.
Vice versa, increasing Ev will decrease shutter speed. It's cool that cell phone cameras are beginning to offer adjustment settings. Most advanced camera will let you control EV, Av, and Tv and lots of other things independently, but only advanced users will touch those settings.
updated the first post, showing what EV is, for those who weren't sure.
Also If you go to Camera settings which is South east (corner right bottom) and then select the second page, select the Adjustments and in there you have another option which is to Sharpen more the image.
This also helps a lot.
I'm still trying to understand the Resolution mixing it with the lightning balances to have a nice fast snap shots indoors and outdoors.
Any help will be appreciated.
I can confirm that this does help a lot on my phone. I tested it at the UNLV vs. Arizona game last night. The pictures came out suprisingly well. Granted, it is a well lit indoor area. But I didn't see as much screen lag as usual.
One of the things that allow human beings to perceive things in three dimensions (3D) is the depth of field. When you focus on something that is close, the objects in the background become out of focus. This lets our mind know which object is close and which is farther away, and hence capture the right dimensions for the object. It is not possible that out mind focuses both near and far objects at the same time.
With this tip, we will guide you how to make the icons on your Android phone appear more 3D by moving the background wallpaper to a more unfocused and blurred state, with the result that icons appear to float above the wallpaper.
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The tools needed for this process are very basic: the desired wallpaper, and Adobe Photoshop Express for your Android device (we will use Photoshop Express in this guide as it is available free on Android Market, but you can use any image editor of your liking).
To begin, launch Photoshop Express and open your desired wallpaper in it. (You’ll need to uncheck ‘Show camera photos only in Phone view’ to be able to see all photos)
Next, you need to soften the image’s focus. Go to Menu > Edit Photo and select the third icon from top bar. You can soften the image by just sliding your finger across screen. The maximum it goes is till 20, which we find to be working best. However, you can set it to any value of your liking, Once you have attained the desired softness, save the image. (It will not overwrite the original but instead save as a new file)
That’s it. Set this new image as your wallpaper, and the icons will appear more 3D due to the difference in focus. The screenshot above does not do justice to it, but we tried it on Samsung Galaxy S, and the brilliant SuperAMOLED display works wonders with this technique. Give it a try on your own device and let us know how it worked for you.
Credits goes to Aatif Khan
Uh, this only works when you use the Tilt-Shift effect. Blurring the background only makes it look like you have a blurry background. What you did does not give the 3d effect sorry.
IHello, I had bought this smart watch about 3 months ago.
I work perfectly but now i have problem.
When the watch change to ambient mode the screen very dark and it has red colour in background.
if the background is white, it will change to red.
How to fix it, plz help me cos it has no guarantee in my country.
plz, plz and plz.
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It is normal when wake up.
nobody ? ??
increase your brightness ?
it is not solve problem when i increase brightness.
it has red colour background, i can set many colours but can not set white colour. Maybe the back-lit change from white to red.
Are you using a custom face? if so, change to one of the built-in watch faces from LG, or just try a few different watch faces in general and see what happens.
I'm not sure (because I don't know what watchface you're using) but it definitely looks like your screen is defective.
Now, the screen is death
I have nearly the same problem. It's been this way for about three months. I did a factory reset three times. The screen looks fine in normal mode, but when it dims, it flashes the dimmed color for half a second, then dims dark to red. Mine appears darker. I can't see it in the daylight at all.
mine just started the same thing :/ do i need a new smartwatch ALREADY?
kay so its gotten much worse, it seems to be caused by not enough power tothe screen, it seems to get worse when it attempts white
Hi,
Can we have more informations please ??
like : did you used Stock Watchfaces, if not which one before the problem etc...
just got it back from LG, the note says:
replacement case
replacement ic/pa/filter
does anyone know what that means?
How do we get service on this watch? I can't take it back to the original store because it was in another state and I'm tired of living with it this way. Thanks
call LG in your state and winge.. it worked for me
btw my watch JUST started bugging out again https://www.youtube.com/watch?v=3AeJ6c65lOo
Hello All,
I have bought last days a galaxy note 8 snapdragon version, but i have seen a bug (maybe is not a bug) that when using AOD enabled with infinity effect enabled (blue theme) screen on aod stays blue with stars on top and after one minute it goes completely black and shows stars and clock only, that i love it... but when phone is charging and aod enabled, the infiniy effect on aod stays always blue on top of the screen and not black with stars only. Well im wondering if is there a possibility of screen burn from static blue color for all over the night if phone stays all night in charge?
Please Note 8 USERS check and reply if you have the same problem.
Dont ask me to turn off infinity wallpaper or aod bcs i like it and i want to use it, also i am all day out so i must charge the phone over night.
Pic attached.
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Thanks
If you do this regularly, yes it will burn the screen. Your top part the screen will be slightly greener (yellow-red) by burning the blue rapidly.
I do not think it will damage the screen, to the naked eye it looks static, but AOD does shift pixels, to avoid this
@xda_rosh is there any way to fix it?
@winol but why it is black in normal use and blue when charging?
Anyone with Note 8 if have the same problem?
Having the AOD numbers ON is not a problem as they move around a bit. But blue gradient definitely will ruin you display. I can guarantee that. My first Note 8 came one side little brighter (blue-white). I purposely made a blue gradient and left the screen on at high brightness a couple of night. It made the screen bit even by burning that side a bit.
The strange thing is that even the samsung agents that i spoke knew nothing about this.
Is very anoying that we cant use AOD because colored theme applied to AOD will burn the screen
Good Day
I think I have a problem with P20 Pro CLT-L29 flashlight. I can see just one of the LEDs is working regardless of the camera settings chosen or if I use it as a torch. When I put a dark glass filter over the flashlight is clearly visible that just the right ( warm ) LED is on. The left part of the flashlight remains off. Any ideas how to test both LEDs separately? My concern is that it may be a hardware issue.
Thank you.
Hi,
In my P20 Pro, when using flashlight, only right LED is in use (looking on the back of the phone). But when I'm taking photo, both LEDs are used (but only during the last flash - taking photo; not during focusing).
adamdvd said:
Hi,
In my P20 Pro, when using flashlight, only right LED is in use (looking on the back of the phone). But when I'm taking photo, both LEDs are used (but only during the last flash - taking photo; not during focusing).
Click to expand...
Click to collapse
Thank you for your suggestion. Unfortunately it doesn't apply to my phone. For both Photo and Pro modes during the last flash the warm LED just burns brighter.
I went to a phone store couple of days ago. The brand new P20 Pro for sale there was acting exactly like the same, so it seems that it's not an isolated case flash failure. I'm wondering if this camera was really build as 2 tone flashlight in a first place.
Honestly, I'm a bit disappointed as this model was announced as "The Camera Phone" when it came on the market.
Mystery unveiled.
I wrote to Huawei support and they got back to me today.
CLT-L29 has a single flash LED only. The information posted on phone specs sites
The 40mp and 8mp cameras are next to each other, with the single 20mp monochrome camera on its own, with a dual LED flash, and then LEICA branding.
turned to be wrong.
The white left side of the flash is not a second LED but a RGB Color Temperature Sensor according to Huawei support.
This is what I received back from them:
" Flash + RGB Color Temperature Sensor (*RGB Color temperature sensor is used to ensure the photo effect by adjusting the white balance and exposure degree according to the scene) "
Oh, that's interesting. I have never thought about that. I found some teardown photos on iFixIt and there is only one LED + sensor.
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Yep, the plastic is deceiving. Looks just like dual LED flash.
Anyway. I'm happy that I don't need to claim warranty.