Galaxy Nexus Collaborative Optimal Color Settings

defconoi · Jul 23, 2012

Hey Guys, I've seen people's color settings all over for the Galaxy Nexus, we have different tools, different kernels and different ways to improve the Purple/Red/Tint Issues with Franco's App, Morfics, as well as free tools like Trickster Mod's App and the new CM10 Color Multiplier, Color Gamma Tuning, and Color Hack presets.

Goal: Have all this information in one place

I have created a Publicly Accessible Spreadsheet on Google Docs that you can edit without sign-in, please either
A:Edit the doc with your color settings or
B: Reply to this thread with your color settings for each different kernel and app and one of us in the thread may update the spreadsheet. Also only reply if you can provide useful information regarding these issues.

I know allot of people are stuck with their Galaxy Nexus, so lets all work together on sharing our settings and tips/tricks regarding this since samsung still has not fixed the issue and still sends out devices with this issue. I've heard people go through 5-6 replacements, ouch.

Checkout the format of the spreadsheet, and feel free to improve it.

Collaborative Nexus Color Spreadsheet here

Other useful Screen Color Links:
[Tips] Screen Color Calibration for the Galaxy Nexus
Galaxy Nexus - Purple Tint + Grainy Screen
Trickster MOD app
Color Calibration. Before / after
Galaxy Nexus grainy and vertical banding screen!
Edit: If requested, I could make a Google Docs form to auto populate the spreadsheet

Anyone know of a way to disable the screen dimming on the notification drop down? When it dims on low brightness the notification and background is purple.

happymouse · Jul 23, 2012

No clue how to get rid of the screen dimming on drop down. You should watch out when running the higher contrast numbers, burn in is a spooky thing. I'm glad that a list of some type is being made (suggestion gathering has been abysmal), although every screen has it's own inherent faults and oddities, it will be very interesting to see the results. Thanks man.

Tikerz · Jul 23, 2012

Good idea. I added a couple.

TyroneLT · Jul 23, 2012

Thanks for this list. I've been messing around with color settings for awhile now with no success. I always felt like the screen had a tinge of green that I couldn't get rid of.

osm0sis · Jul 23, 2012

TyroneLT said:
Thanks for this list. I've been messing around with color settings for awhile now with no success. I always felt like the screen had a tinge of green that I couldn't get rid of.

Adding some red should help that. My problem is that there are a couple "hot spots" of yellowing and magenta that I have to strike a balance between. Went through a few different settings but posted my current to the spreadsheet.

Previous:

200,215,280
-2,0,15
-23

And I added a Gradient Fix column since I find using that mod changes what you need for color settings to make things nice.
Also worth mentioning that in some apps the OMAP Gamma runs on a 1.0-2.0 scale (by 0.2s) and in others 5-10 (by 1s), these are equivalent however.

CADude · Jul 24, 2012

Finally a useful idea for a thread.

8mileroad · Jul 24, 2012

Just wondering, isn't every screen at least slightly different? I'm pretty sure that's why there's color calibration, or the screens would come calibrated perfectly.

CADude · Jul 24, 2012

8mileroad said:
Just wondering, isn't every screen at least slightly different? I'm pretty sure that's why there's color calibration, or the screens would come calibrated perfectly.

There isn't a HUGE variation in the differences. Each screen isn't a special snowflake. There's a relatively small, finite number of different screen settings that work for all screens.

This will give people a narrowed-down list to try first instead of spending hours experimenting.

defconoi · Jul 24, 2012

Im finding my self having OCD in getting this perfect lol, just added another setting that I found pretty nice but there is still slight purple at 1-5percent brightness. Thanks guys for adding your settings to the spreadsheet, I think with enough data we can average the setting variables and find a good base setting

For me color is only an issue below 20 percent and sometimes lower depending on gamma settings, im finding that gamma and contrast seem to help more than the actual color multipliers

Edit: Just updated the spreadsheet with more settings others have shared on XDA, credits go to isinisterx, amit_sen
ÜBER™, for sharing their settings in other threads

exzacklyright · Jul 27, 2012

This worked wonders for me

vkamicht · Jul 27, 2012

Really, the only purpose to document all these settings is for statistics. To show that more Nexus screens come with x-color tint than y-color. Even then, you're trusting people to know what white and gray are supposed to look like. I've seen how most people set up their TVs - they're usually wrong.

There isn't a HUGE variation in the differences. Each screen isn't a special snowflake. There's a relatively small, finite number of different screen settings that work for all screens.

This will give people a narrowed-down list to try first instead of spending hours experimenting.

It doesn't take hours, it's a pretty easy process:

Color multiplier is white balance, which also affects overall color tone. Get two things: a blank white screen, and a pure black screen with white text (settings is easy if you have gradient disabled.) Use these, and go with what you think white should be, unless you have a good reference or a calibration tool. For example, I dropped red/green because my screen was too yellow stock. I then found that I could still almost see the individual red pixels sticking out of text (best way I can describe it), and looking at my home screen felt a little too "pink", dropped red a little more until it looked fine.

Next is gamma/offset/whatever which is the adjustment of everything in between white and black. This one can be trickier because grays can easily look too red/brown, too blue, too yellow, etc. and on these screens the gray balance will change depending on brightness. Yes, sometimes drastically (see: purple tint) This can be a pain if you need to lower greens because green can't be lowered (the screen goes nuts), and the colors don't scale the same, so if you increase red and blue by the same amount one will probably be stronger than the other.

Just from my experiences. And yes, each screen is a special snowflake. Most people are just happy enough with canned settings.

strumcat · Jul 27, 2012

The only thing I would add to that is if you are going to eyeball the whites and grays without a reference, it's better to do it in soft, indirect daylight instead of artificial light, which has various color tints depending on what kind of bulb you use.

exzacklyright · Jul 27, 2012

vkamicht said:
Really, the only purpose to document all these settings is for statistics. To show that more Nexus screens come with x-color tint than y-color. Even then, you're trusting people to know what white and gray are supposed to look like. I've seen how most people set up their TVs - they're usually wrong.

It doesn't take hours, it's a pretty easy process:

Color multiplier is white balance, which also affects overall color tone. Get two things: a blank white screen, and a pure black screen with white text (settings is easy if you have gradient disabled.) Use these, and go with what you think white should be, unless you have a good reference or a calibration tool. For example, I dropped red/green because my screen was too yellow stock. I then found that I could still almost see the individual red pixels sticking out of text (best way I can describe it), and looking at my home screen felt a little too "pink", dropped red a little more until it looked fine.

Next is gamma/offset/whatever which is the adjustment of everything in between white and black. This one can be trickier because grays can easily look too red/brown, too blue, too yellow, etc. and on these screens the gray balance will change depending on brightness. Yes, sometimes drastically (see: purple tint) This can be a pain if you need to lower greens because green can't be lowered (the screen goes nuts), and the colors don't scale the same, so if you increase red and blue by the same amount one will probably be stronger than the other.

Just from my experiences. And yes, each screen is a special snowflake. Most people are just happy enough with canned settings.

What brightness setting should we test this on? My colors look fine it's just it's a bit dark on auto brightness which is at like 1/3 brightness

Mandated from Stannis Baratheon

harveydent · Jul 27, 2012

exzacklyright said:
What brightness setting should we test this on? My colors look fine it's just it's a bit dark on auto brightness which is at like 1/3 brightness

Mandated from Stannis Baratheon

I usually calibrate at maximum brightness, then double check if the settings are ok at 50% and minimum brightness.

You probably should do this on the brightness setting you're most regularly at.

vkamicht · Jul 27, 2012

I personally did my calibration at 50% as I almost never go above that (unless in direct sunlight.) I read in another calibration thread someone mentioned that with default settings 50% brightness is quite close to a "standard" brightness level (measured in IRE) - so I'm going on someone's word, but it looks good and natural to me.

harveydent said:
You probably should do this on the brightness setting you're most regularly at.

Agreed with this, it'll be different for everyone

exzacklyright · Jul 27, 2012

I think mine looks better setting the trinity contrast to 10...but then again when i add a widget i can't even read anything.

Mandated from Stannis Baratheon

osm0sis · Jul 28, 2012

exzacklyright said:
I think mine looks better setting the trinity contrast to 10...but then again when i add a widget i can't even read anything.

Screenshots don't really prove anything.. It's all in how your screen looks in person after compensating for the "special snowflakiness"

Take a photo if you want to show us how different settings are affecting things.

exzacklyright · Jul 28, 2012

osm0sis said:
Screenshots don't really prove anything.. It's all in how your screen looks in person after compensating for the "special snowflakiness"
Take a photo if you want to show us how different settings are affecting things.

I just noticed... haha true.. But that's the issue. I can't read the black on the gray.... while looking at my phone. What should I adjust?

exzacklyright · Jul 31, 2012

Still can't figure out what to change. The colors are fine but the darks are dark and hard to compare them to against each other

Edit: I'm stupid! I was using the lowest omap gamma..should be 1 right :/

Mandated from Stannis Baratheon

deepayanneogi · Jul 31, 2012

Currently using Paranoid 1.9.4 which is based on CM10 early preview , so comes with CM 10 default kernel : 3.0.36 .
Color multiplier : 1 , 1, 1
Gamma : RGB : 9:0:16 with DSS gamma : off
No trinity contrast applied ,

Galaxy Nexus Collaborative Optimal Color Settings

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