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Does anyone know if there are any working ways to adjust color temperature? I think most methods require a modified surfaceflinger library. My screen is sickeningly bluish green.
Thanks.
ffolkes said:
Does anyone know if there are any working ways to adjust color temperature? I think most methods require a modified surfaceflinger library. My screen is sickeningly bluish green.
Thanks.
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Sounds like a bad screen. I'd take it back. Mine is very balanced. Super saturated but very balanced.
Sent from my SPH-D710 using XDA App
I agree, my first one had a bad screen and a dead pixel right in the center, the screen quality on my new one is better all around and I wasn't even expecting there to be an improvement
Thanks for the suggestions, but the other ones I've seen don't look any better in terms of their greenish-blue color cast. I've read it's typical of AMOLED displays. I just want a way to adjust white balance like CM has.
...and I've discovered the answer. Chainfire3D's Pro version has support for Custom color "nightvision mode". Basically, exactly what I wanted. It works perfectly! Do yourself a favor and get this and drop your green and blue levels down a tiny bit.
You just saved me a two hour drive to get a new phone. Great find.
Have had this phone for a few days and am adjusting to LCD again after a long stint with SAMOLED+.
The colors on the Optimus look a bit muted to me, and dark grays aren't quite as deep as I prefer them. No doubt I'm just used to OLED. Is there a way to calibrate/adjust the color or even the gamma level? I don't know of an app that does it. Some ROMs have this feature.
Also, anyone know what the color gamut on this LG is? I hope that it's not low color gamut like the iP4, but it doesn't appear to be (hard to say, different OS).
I'm the only one who wants to color calibrate his display?
Is there a script available similar to this for the Galaxy Nexus? http://forum.xda-developers.com/showthread.php?t=1521195
Even pentile matrix users want a color calibrated display!
I obviously can't speak for all users, but I've been completely happy with the color reproduction of the Nitro display. In fact, I'd say this is the best display I've ever used on a mobile phone. AMOLED's tend to be over saturated according to the experts whereas this screen scores really high in all tests of quality. Minus the HTC One X, we probably have the best display out there.
Out of the box, SAMOLED+ displays are horribly inaccurate and far too sharp, but after calibration (especially under 4.0+), colors can look quite accurate yet pleasing.
I'm not expecting this IPS display or any LCD to match OLED for black levels, but I believe that the Optimus' display, with some minor tweaking, can be better than it is right now. On LCDs, I prefer to turn up the backlight, turn down brightness, crank up contrast, and lower gamma: this creates very deep blacks and amazing contrast. Dark greys and minor details are slightly crushed, but this is a compromise that I'm willing to make.
Is there a script to lower the gamma level on the Optimus? I don't even need to do anything with the colors, though of course proper calibration would be nice too.
So, the other day I purchased a Datacolor Spyder 4 Pro screen calibrator. Being a photographer I want all my (primary) displays to look as natural and true to what my eye sees as possible.
So I decided to try calibrating my Gnex screen. I don't know any good way of doing this so I had to improvise, what I did is I first took screenshots of the entire calibration process and came to the conclusion that it simply shows 5 images: one solid white, black, red, green and blue image and measures it to define the accuracy of the uncalibrated screen. Then having told the calibration software that the screen has built in RGB sliders (the gnex doesn't I know, but I ticked the option anyway, you'll understand soon why) it then gives me a screen where it measures from a solid white image how much bias there is in either of the channels (red, green and blue) and gives a clear diagram overview, the objective is to adjust the RGB sliders of the monitor to make the 3 bars align (thus having no bias/tint in either channel for a natural reproduction). What I did here is that I used the color control feature available in various custom kernels (I'm using franco) and adjusted the color multipliers until' I my calibrator reported it being even and natural. I also used the RGB Gamma for some minor fine tuning.
I returned to the home screen and WOW, it's looks better than ever, grays are perfectly natural with NO GREENISH, CYAN OR PURPLE TINTS anywhere! Whites aren't perfect, leaning more toward a bright light gray, but worth noting I'm having only 31% screen brightness and I'm not sure if AMOLED can achieve a pure bright white image without a ton of cyan bias.
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Tl;dr
Long story short, I got an hardware screen calibrator and used it to assist me get the most natural values with the color control in franco's kernel and it just pure amazing with none of the tints that the gnex is known for having.
My final values:
NOTE: These values may or may not look good for you, every AMOLED screen is different and needs different settings, these are simply the settings that worked for me, what's best for your device might be completely different!
Multipliers: 233 175 210
RGB Gamma: 1 0 1
Trinity contrast: 0
OMAP gamma: 1.0/disabled
Are the multipliers in order as RGB? Because these settings just make my screen look orangey
First thing, thank you for post:good:, i had looked for somebody to do a true calibration ever since i bought my gnex, having been spoiled before by my nexus s slcd screen, which was an excellent batch, so moving to the SAMOLED HD, for me, wasn't as great as i had hoped.
Still even after trying all the presets and fine tuning it still is slightly off.. (annoying thing with these screens not being all the same and being so different on quality, so you can't simply just input the color values and get the same result).
Anyway i like your numbers, they look pretty god on my screen.
Off topic: I'm probably wrong, but i think read somewhere that going over 200 on the color multipliers was supposed to make the screen more susceptible to burn in?
nitsua98 said:
Are the multipliers in order as RGB? Because these settings just make my screen look orangey
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Thanks for the reply. They should be in order indeed. Note that every display is different so it may not be what's best for your individual device. Additionally, AMOLED screens I believe is said to wear/fade quite quickly compared to LCD with use and also due to the way the actual panel works in our screens each color channel will fade with different pace, effectively leading to unbalanced colors based on what you view on it; For example if you view a lot of red colors, the reds will start fading and thus everything will look a tad cyan-tinted. Finally there may be a difference in the kernel you use and the version of that kernel.
Simply put, unfortunately it's not guaranteed that what looks best for everyone else as each screen is different.
Oh, another thing I noticed; Screen brightness actually affects the color balance pretty largely. Higher brightness means less greens and more reds/blues.
VirgilO said:
First thing, thank you for post:good:, i had looked for somebody to do a true calibration ever since i bought my gnex, having been spoiled before by my nexus s slcd screen, which was an excellent batch, so moving to the SAMOLED HD, for me, wasn't as great as i had hoped.
Still even after trying all the presets and fine tuning it still is slightly off.. (annoying thing with these screens not being all the same and being so different on quality, so you can't simply just input the color values and get the same result).
Anyway i like your numbers, they look pretty god on my screen.
Off topic: I'm probably wrong, but i think read somewhere that going over 200 on the color multipliers was supposed to make the screen more susceptible to burn in?
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And thanks to you for your reply. I actually believe I've heard someone that had used hardware to measure up the best settings for a natural 6500K color balance, but as I replied above, each screen is different and thus they were slightly too much on the blue/cyan end for me. To be honest, most settings I've tried that others have claimed to look great have always been too much green or too much blue. I've tried to adjust after my own eyes and gotten pretty close to what I believe to be good colors but always there is some kind of flaw, so I'm quite surprised to be honest I was able to get such a good overall result.
As for the color multipliers, I've heard it too but I have never seen anyone confirm it, so I'd call it off as a rumor. The burn-ins I've seen using values around 150-200 previously only apply to bright contrast colors and fades away within 2-3 seconds at most and 31% screen brightness is rather low I'd say.
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On another note.. I just want to add that this isn't necessarily a full calibration but just an attempt to reach the most balanced color values. When it comes to gamma and contrast however I'm not sure it's really possible to mimic that of an LCD screen due to the way AMOLED handles blacks and produces very vibrant colors.
Timmyfoxeh said:
Thanks for the reply. They should be in order indeed. Note that every display is different so it may not be what's best for your individual device. Additionally, AMOLED screens I believe is said to wear/fade quite quickly compared to LCD with use and also due to the way the actual panel works in our screens each color channel will fade with different pace, effectively leading to unbalanced colors based on what you view on it; For example if you view a lot of red colors, the reds will start fading and thus everything will look a tad cyan-tinted. Finally there may be a difference in the kernel you use and the version of that kernel.
Simply put, unfortunately it's not guaranteed that what looks best for everyone else as each screen is different.
Oh, another thing I noticed; Screen brightness actually affects the color balance pretty largely. Higher brightness means less greens and more reds/blues.
And thanks to you for your reply. I actually believe I've heard someone that had used hardware to measure up the best settings for a natural 6500K color balance, but as I replied above, each screen is different and thus they were slightly too much on the blue/cyan end for me. To be honest, most settings I've tried that others have claimed to look great have always been too much green or too much blue. I've tried to adjust after my own eyes and gotten pretty close to what I believe to be good colors but always there is some kind of flaw, so I'm quite surprised to be honest I was able to get such a good overall result.
As for the color multipliers, I've heard it too but I have never seen anyone confirm it, so I'd call it off as a rumor. The burn-ins I've seen using values around 150-200 previously only apply to bright contrast colors and fades away within 2-3 seconds at most and 31% screen brightness is rather low I'd say.
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On another note.. I just want to add that this isn't necessarily a full calibration but just an attempt to reach the most balanced color values. When it comes to gamma and contrast however I'm not sure it's really possible to mimic that of an LCD screen due to the way AMOLED handles blacks and produces very vibrant colors.
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Actually deterioration is a problem with normal AMOLED screens. Samsung uses PenTile configuration to mitigate that in the SAMOLED and SAMOLED Plus variants. More info in the following interview with a Samsung engineer:
http://www.mobileburn.com/19548/new...ed-displays-last-longer-thats-why-we-use-them
I put in these values using the Trickster app and my screen looked absolutely rubbish. There is no option to enable/disable Omap gamma in trickster, could that be the reason for the bad colors?
Screenshot please
Sent from my Galaxy Nexus using xda premium
Justinhopaolo said:
Screenshot please
Sent from my Galaxy Nexus using xda premium
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Face meet palm...
Why would the settings on his device be shown in a screen shot that you're viewing on yours?
its looks like cyan effect for photo on my screen..:/
063_XOBX said:
Face meet palm...
Why would the settings on his device be shown in a screen shot that you're viewing on yours?
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Ummm.. Before and after?? Captain perfect
Sent from my Galaxy Nexus using xda premium
This works very well on my phone, but I change the omap gamma to 6
Thank you again :thumbup:
---------- Post added at 04:05 AM ---------- Previous post was at 03:51 AM ----------
Justinhopaolo said:
Ummm.. Before and after?? Captain perfect
Sent from my Galaxy Nexus using xda premium
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He's right, smartass, the screen shot is just the source of color, no matter how you calibrate your screen, every screen shot looks the same on other devices. We can only notice with real eyes contact.
Justinhopaolo said:
Ummm.. Before and after?? Captain perfect
Sent from my Galaxy Nexus using xda premium
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That makes as much sense as taking screenshots of different brightness levels.
Justinhopaolo said:
Ummm.. Before and after?? Captain perfect
Sent from my Galaxy Nexus using xda premium
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You must be a genius. Never heard anyone call somebody "Captain perfect" either. Pretty crappy insult.
Glad to see some people have enough sense to realize screenshots are software rendered though.
063_XOBX said:
Face meet palm...
Why would the settings on his device be shown in a screen shot that you're viewing on yours?
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You knew this was going to happen lol.
Sent from my Galaxy Nexus using Tapatalk 2
AbhishekS said:
I put in these values using the Trickster app and my screen looked absolutely rubbish. There is no option to enable/disable Omap gamma in trickster, could that be the reason for the bad colors?
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Every screen is different, what looks good for me might look rubbish for you unfortunately :/
Also because someone asked for a before/after...
Now this will be highly unscientific and hard to reproduce but here's a before/after example (clicky for larger image):
Also advised you look at it with a good desktop monitor, and bear in mind that cameras are not perfect in any way so even if the camera settings used were identical and white balance set to match as closely as possible, it may not look to you as significant in terms of differences than it is to my eye. Nonetheless I can certainly see a difference especially in the gray and white tones.
The before example is not the stock kernel but simply the reference settings of all multipliers set to 200 and RGB gamma all set to 0. I believe this should be fairly similar to what stock kernel shows.
Still looks orangeish to me so I lowered red down to 220. But thanks anyways. I always love testing these.
A screenshot won't show screen adjustments...
Justinhopaolo said:
Ummm.. Before and after?? Captain perfect
Sent from my Galaxy Nexus using xda premium
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Sent from my Galaxy Nexus using Tapatalk HD
You had a green tint before u changed it. I can that in the Google Search bar.
And what's funny is the color u recommended are extremely similar to mine lol.
*Multiplier*
Red: 235
Green: 170
Blue:206
*RGB Gamma*
Red: 4
Green: 0
Blue: 2
Trinity: 0
Omap:1
But yeah I had a very greenish tint in my screen. Made my keyboard look brown before I rooted. =|
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If I have helped you.... hit that sexy thanks button. ^_^
Justinhopaolo said:
Screenshot please
Sent from my Galaxy Nexus using xda premium
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Amazing. Just amazing. Can't believe we still have people who say things like this.
Sent from my Galaxy Nexus using xda app-developers app
after looks better imo
If you're colorblind, please disregard this thread. Rate this thread to express how you deem the color saturation and accuracy of the OnePlus 3T's display. A higher rating indicates that you think that color accuracy is very high and saturation is excellent.
Then, drop a comment if you have anything to add!
s-RGB mode is great, except for the white balance, it's a tad too warm/yellow.
Want to share my screen settings, I personally love AMOLED colors but I hate yellowish tint, so I tuned it up a bit to get cold white:
1. Install Kernel Adiutor.
2. Go to Screen section.
3. Red 205, Green 225, Blue 256 (default).
4. Save.
That's it. Keep in mind that this is completely personal choice.
jowaii89 said:
s-RGB mode is great, except for the white balance, it's a tad too warm/yellow.
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sRGB is supposed to be like that, though. I also find the warmer screen easier on the eyes in bed.
Defferex said:
Want to share my screen settings, I personally love AMOLED colors but I hate yellowish tint, so I tuned it up a bit to get cold white:
1. Install Kernel Adiutor.
2. Go to Screen section.
3. Red 205, Green 225, Blue 256 (default).
4. Save.
That's it. Keep in mind that this is completely personal choice.
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Problem with that is really each screen is different, whereas the sRGB calibration is the same for every display, as far as I know.
I only use the sRGB mode as i hate oversaturated colours and always prefer colour accuracy in all circumstances. As mentioned above the colour temp is a bit off, but overall the sRGB mode is the lesser of all evils. Is it just me or do the colours pop a little more in sRGB since the Nougat update? Before the update i felt the colours were a little under-saturated but i'm happy with it now.
How people can live with the disgusting neon AMOLED colour space is beyond me.
Screen is a downgrade. Very strong yellowish tint. Not happy at all.
I use Official RR and there is option for screen color in %. What to do for it ? How to Calibrate it ? Thanks in andvance.
Aman Amrit said:
I use Official RR and there is option for screen color in %. What to do for it ? How to Calibrate it ? Thanks in andvance.
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custom kernel
nitinvaid said:
custom kernel
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Thanks.
But Which kernel btw ? Official RR comes with custom kernel build in. So which one is supported ?
yes screen color saturation is a failure when we recognize it and also we saw some yellowish
SRGB is a bit yellow anyway.
MattBooth said:
SRGB is a bit yellow anyway.
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For everyone using sRGB just modify rgb values and set green to 248 and red to 249. You'll love it
Would it be weird to say I like the saturation of the default colors
Me too. I like stock. One day when i will root the device maybe i will change but i like very much default colours
One of the best 1080p AMOLED displays that I've used. Of course, it isn't as impressive as the QHD Samsung panels though not really far off. The whites on my display seem good to my eyes. I can easily notice the yellowish warm whites on AMOLED screens but I don't seem to notice anything like that on my unit. My unit luckily has good whites (not too warm/cold) and no pink or green tint.
Though I've been an AMOLED fan for years, this my first phone with an AMOLED display. The colors do seem a bit too saturated at times but it is a gorgeous display. The sRGB mode is nice for when you need color accuracy but it is just too washed out for my taste.
Only real "defect" in this display is the purple ghosting effect which can be observed while scrolling grey elements on black backgrounds in low brightness but this issue is inherent to AMOLED and I've seen it on all AMOLED devices I've laid my eyes on.
Sent from my ONEPLUS A3003 using Tapatalk
Can the color be optimized to look accurate like an ips display with elemental or franco kernel ?
sherlock_holmes said:
Can the color be optimized to look accurate like an ips display with elemental or franco kernel ?
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Both kernels supports color control and works the same so either can produce accurate colors, you just need to know the proper color values settings
here's the best profile by far:
saturation intensity = 33
screen value = 127
screen contrast = 121
let me know if it's good.
How to do that on default os?
gaurravv5 said:
How to do that on default os?
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you need bootloadr unlocked and root and a custom kernel like franco blu spark or boeffla for that. stock kernel does not support that
Can anyone share their screen calibration settings? I wanna get the best whites possible. On my N9 I used to decrease the reds all the way to zero and my greens about halfway but this is a new phone with a different display and those settings aren't doing the same thing. So I just wanted to know what everyone was doing. Thanks.
I think natural mode supposed to be pretty much calibrated already and if you still wanted to tweak it more there is cool/warm white balance slider and rgb sliders.
There is whole bunch of tests here http://www.displaymate.com/Galaxy_Note10_ShootOut_1G.htm.
roaduardo said:
Can anyone share their screen calibration settings? I wanna get the best whites possible. On my N9 I used to decrease the reds all the way to zero and my greens about halfway but this is a new phone with a different display and those settings aren't doing the same thing. So I just wanted to know what everyone was doing. Thanks.
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pete4k said:
I think natural mode supposed to be pretty much calibrated already and if you still wanted to tweak it more there is cool/warm white balance slider and rgb sliders.
There is whole bunch of tests here http://www.displaymate.com/Galaxy_Note10_ShootOut_1G.htm.
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Natural mode can't be further adjusted. You have to choose Vivid to adjust RGB and color temp.
As far as best settings, it's difficult to say what yours should be. If the Note 10 is anything like the Note 8 or Note 9, you can lay four of them down next to each other with stock settings and they will all be different.
My Note 10+ seemed to have too much green tint and maybe just slightly cool. I left temp alone and just knocked green down one notch. But honestly, these screens are so close to perfect you can just leave it stock. Just play around with it, adjust it back and forth until it looks good to YOU. You're the one staring at it.
I have compared four Note 10+'s side by side, and all had different white points. Also, Natural mode was significantly greenish (maybe slightly yellow too) on all four devices. Personally, I feel like my Note8 has a better panel.
According to article I linked above and here again http://www.displaymate.com/Galaxy_No...hootOut_1G.htm Natural mode supposed to be calibrated and automatically switch between sRGB and DCI-P3 depending on content. (I guess sRGB for pictures and web, DCI-P3 for 4k TV) and can't be easily adjusted. Then there is Vivid mode which uses full color gamut, display is capable of showing and you can adjust it with sliders to your liking or calibrate using instruments. I can't tell you if all phones are properly adjusted at factory (probably not), but according to article the one they had was right on the money and mine seems to be fine as well. BTW the eye can be easily fooled and calibrating instruments are the proper way to adjust it, if you need it. Yet, it is my phone, I don't use it for pro use, so I adjust it the way I like it and mine is set as vivid and gray seems to be neutral gray as far as I can tell without any tinkering. YDMW.
ffolkes said:
I have compared four Note 10+'s side by side, and all had different white points. Also, Natural mode was significantly greenish (maybe slightly yellow too) on all four devices. Personally, I feel like my Note8 has a better panel.
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One of the failings on Android, no color calibration.
You simple can't do it by eye and get all the parameters right.
It's fine for viewing but not editing photos until a company like Spyder steps up to the plate with a 3rd party calibration apk and tool.
Mine seemed best in natural mode with a slight amount of red added with an overlay apk and night mode turned at about the 10 or 20% level.
Lol, enough.
Just don't edit photo colors, temps etc. with or you may get a very rude surprise.