Resource exists to calibrate the colors of the Moto X 2014 screen?
Leave the most accurate colors, such as white IPS Display. There is possibility? With which resource?
I thank for the help.
I am sure a future modified kernel will allow for color calibration.
knitler said:
I am sure a future modified kernel will allow for color calibration.
Click to expand...
Click to collapse
Is this right?
I did not see this possibility in Moto X 2013.
Andreqkz said:
Is this right?
I did not see this possibility in Moto X 2013.
Click to expand...
Click to collapse
Moto X never really got a whole lot of dev support like most Flagships so probably just no one cared to do it.
Sorry for reviving a thread, but I am quite interested in this subjust considering my screen has the yellow tint. I think out best hope is that faux already has a github branch opened for creating a kernel for our device which most likely will support screen calibration like his kernel for other devices, I also believe he has an app on the play store for doing so for devices that support it.
If you search for screen adjuster in the play store, you will see several apps that can adjust tint, white balance, etc. Not as good as if you were able to do at the kernel level, but...
Any developer interested in creating this resource?
The screen colors " Moto X " are horrible When I compare with other models: Galaxy S5, LG G2, Sony Z3 / Compact...
Andreqkz said:
Any developer interested in creating this resource?
The screen colors " Moto X " are horrible When I compare with other models: Galaxy S5, LG G2, Sony Z3 / Compact...
Click to expand...
Click to collapse
I use CF Lumen to fix the colors. Works pretty well. I adjusted the color temp so whites are actually white now.
But it is the same thing as a kernel with this feature?
Have you used Color Control in a Kernel on another smartphone? It works the same way with this CF Lumen application?
Andreqkz said:
But it is the same thing as a kernel with this feature?
Have you used Color Control in a Kernel on another smartphone? It works the same way with this CF Lumen application?
Click to expand...
Click to collapse
No. But it helps.
_MetalHead_ said:
I use CF Lumen to fix the colors. Works pretty well. I adjusted the color temp so whites are actually white now.
Click to expand...
Click to collapse
Wow. Good find! This is the ONLY app I have found that actually *decrease* RGB channel levels with respect to base levels. All other apps only increase levels. By increasing channels, you wind up removing those inky black on AMOLED screens. So, when your brightness levels increase, the blackness takes on the color of the increased color channel, which of course is bad.
I do question your method of removing the yellowish whites of the Moto X. The color temp adjuster slid all the way to the right at 6500 is essentially no filter at all, as its the default color temp. Moving it to the left warms up the white balance, but doesn't result in whiter whites. What I found to improve whiteness was to keep the white balance at 6500, but in the color channels, reduce both RED and GREEN channels to 0.949 and 0.937, respectively. I just keep these settings around the clock and don't make use of all the other filters.
So, this is the only app that I've found where you can maintain your inky blacks while actually *raising* the color temp, or at least raise BLUE levels with respect to the other 2 channels.
floepie said:
Wow. Good find! This is the ONLY app I have found that actually *decrease* RGB channel levels with respect to base levels. All other apps only increase levels. By increasing channels, you wind up removing those inky black on AMOLED screens. So, when your brightness levels increase, the blackness takes on the color of the increased color channel, which of course is bad.
I do question your method of removing the yellowish whites of the Moto X. The color temp adjuster slid all the way to the right at 6500 is essentially no filter at all, as its the default color temp. Moving it to the left warms up the white balance, but doesn't result in whiter whites. What I found to improve whiteness was to keep the white balance at 6500, but in the color channels, reduce both RED and GREEN channels to 0.949 and 0.937, respectively. I just keep these settings around the clock and don't make use of all the other filters.
So, this is the only app that I've found where you can maintain your inky blacks while actually *raising* the color temp, or at least raise BLUE levels with respect to the other 2 channels.
Click to expand...
Click to collapse
I misspoke, I didn't mean color temp. I adjusted the master filter, decreased red and green like you said you did. And same here, that setting stays permanently without anything else. It makes a HUGE difference, my screen is gorgeous now. I'm glad you found as much success with it as I did
Thanks @_MetalHead_ for mentioning CF Lumen. This works so much better than Screen Adjuster Pro (I had been using that until now).
sha_tan said:
Thanks @_MetalHead_ for mentioning CF Lumen. This works so much better than Screen Adjuster Pro (I had been using that until now).
Click to expand...
Click to collapse
No prob happy to help!
What Motorola should do is offer screen modes, like samsung does
Chad_Petree said:
What Motorola should do is offer screen modes, like samsung does
Click to expand...
Click to collapse
Try CF Lumen. It works wonders.
CF.Lumen has the nasty habit of applying its filters twice when rotating the phone and on the recent-apps screen. So if I calibrate my screen to look just nice, I get a blue tint on those occasions. So I'm constantly reminded of this workaround solution.
I'd rather stick with the yellow tint, trying to get used to it and still hope for a custom kernel to adjust the colors on hardware level. But it looks like nobody is interested in developing for the Moto X 2014... :crying:
mcg33 said:
CF.Lumen has the nasty habit of applying its filters twice when rotating the phone and on the recent-apps screen. So if I calibrate my screen to look just nice, I get a blue tint on those occasions. So I'm constantly reminded of this workaround solution.
I'd rather stick with the yellow tint, trying to get used to it and still hope for a custom kernel to adjust the colors on hardware level. But it looks like nobody is interested in developing for the Moto X 2014... :crying:
Click to expand...
Click to collapse
Weird, I don't have that issue at all.
Sent from my iPhone 6 using Tapatalk
It's not an issue, it's just how the app works.
Chainfire himself confirms it in his thread about CF.Lumen:
http://forum.xda-developers.com/showpost.php?p=51827433&postcount=74
It might be less noticeable if your filter settings are very low.
Everybody talks about removing the yellow tint, but what about toning down the saturation? I find it ridiculously fake, the google music app and tapatalk app look so cartoony with the stock saturation, could I tone it down with cf lumen?
Related
Hey
I see there is desire for insights and understanding by reading press articles about 2.3.3 color change.
First, a statement:
What I know:
- What I will explain here
- 2.3.3 change looks bad on my device : Colors are washed out, the response is very far from a 2.2 gamma / sRGB calibrated screen should look like.
What I don't know:
- If the result is bad on every screen. Probably not.
It's known Samsung manufactured at least 2 different Super AMOLED screen revisions, and it's possible that 2.3.3 looks perfect on some screens.
Links:
Issue 15039: Android 2.3.3 screen yellowish
What changed:
In 2.3.3, the screen (framebuffer) driver has been updated.
This screen driver consist of several files, including code that calculate gamma adjustment points and brightness levels dynamically based on a reference gamma table.
Change in 2.3.3 can be categorized in 3 types:
Code and gamma points calculations
1/ A new feature introduced is the ability of the driver to read informations from the screen hardware.
So far, there was no detection at all, just configuration sent.
Now the driver has the ability to ask to the screen: "what are your factory calibration levels for Red, Green and Blue"
2/ Another change is in the driver initialization sequence, supposed to setup the internal screen control hardware calculations for gamma 2.2 instead of something else (not specified)
It has the effect of brightening shadows.
Color temperature change
The updated driver has the ability to use multipliers to adjust the screen temperature on the linear scale.
In theory, it should allow to change red/green/blue levels without altering the color rendition accuracy, despite the complex calculations needed to generate color profiles at each brightness levels.
Today, those Red Green Blue multipliers are fixed in stone, but I'll publish shortly a kernel version + an app so you can control them manually.
It will needed to be treated with care because of potential overheat or fast burn-in side-effects at too high brightness levels.
Different Gamma table (aka Super AMOLED color profile)
Colors calibration for Super AMOLED design has almost no common points with current methods applicable to LCD only.
Calibrating a AMOLED screen requires to setup 255 different hardware correction profiles, one per brightness level.
Instead of that, math calculations, based on a reference gamma table are used to setup responses applied by the screen hardware, that control each single led accordingly.
On a LCD screen it's much simpler as the LCD panel response is always the same: One profile is virtually enough as brightness changes correspond to adjustments of the backlight power.
This is why LCD-type adjustment calibration or color change tools (like the one in CyanogenMod) cannot be used to calibrate Super AMOLED screen.
The gamma table has been vastly updated. It also brighten the shadows compared to previous profiles.
However, Google's previous Gamma table exhibited a purple deviation in dark grays, especially at low brightness settings. This new gamma table fixes the issue.
Source files:
- main driver - calculations
- hardware gamma adjustment points placement
- gamma table (and in the same file: screen initializations sequence)
Commits - source changes:
1/ ARM: herring: panel: Adjust pentile gamma table
2/ s3cfb_tl2796: Add support for reading mtp gamma register offsets
3/ s3cfb_tl2796: Add debug function to read current gamma correction registers
4/ ARM: herring: panel: Add support for reading mtp data
5/ ARM: herring: panel: Update gamma table
6/ ARM: herring: panel: Correct color temperature.
Conclusions
The new driver is properly (I would say: smartly!) written. It implement features exactly how it should be done.
Also, it should work well on each screen revision as it adapt to them.
However, something went wrong in the process.
Calibrating a screen cannot be done
Also, this is a Super AMOLED. Contrast Ratio of it is almost infinite.
Trying to apply exactly color profiles designed for lesser screens, with lower contrasts and gamut cannot work, by design.
However it doesn't mean a Super AMOLED screen is condemned to exhibit washed out or absurd over-saturated colors.
In a similar way, calibrating plasma TVs is not easy but can lead to excellent results.
Kernel for color developers, allowing hardware calibration
In this post
and this one
Yes, a third one too
Yet again another one
write in progress... comments welcome already
just a bit of extra info
http://www.engadget.com/2011/02/27/nexus-s-2-3-3-update-adjusts-screens-color-temperature-we-go-e/
Poll shows
2607 like the new colors.
727 do not like the new colors.
terryhau said:
just a bit of extra info
http://www.engadget.com/2011/02/27/nexus-s-2-3-3-update-adjusts-screens-color-temperature-we-go-e/
Poll shows
529 like the new colors.
157 do not like the new colors.
Click to expand...
Click to collapse
Yes but I think the poll accuracy is affected by the article's photo,
The camera white balance used favor 2.3.3 color rendition.
On the color accuracy topic, the photo is not representative of what you see on the actual screen.
It allows however to calculate differently:
581 (14.9%) "looking good"
170 + 82 + 142 = 394 not happy with the update. "No, my screen looks terrible." + "No, mine's plagued with other bugs here." + "No, everything's gone wrong!"
The poll asks people how they think it looks on their device, not in the picture.
But i agree, polls are inaccurate.
I haven't actually seen the 2.3.3 color profile on my own device because none of the custom kernels here use it. And i don't want to use a stock kernel (cm7 user).
When you update your kernel, will it use the new profile by default?
terryhau said:
The poll asks people how they think it looks on their device, not in the picture.
But i agree, polls are inaccurate.
I haven't actually seen the 2.3.3 color profile on my own device because none of the custom kernels here use it. And i don't want to use a stock kernel (cm7 user).
When you update your kernel, will it use the new profile by default?
Click to expand...
Click to collapse
Yeah, this poll cannot be accurate as the poll answers are for different questions, mixing color changes and general update modifications.
This poll is invalid by design ^^
You cannot add apples and oranges.
Until we manage to get nice colors from the new driver & gamma table, I'll publish mine with the old solution + the Voodoo color profile applied from the app.
But in this thread yes I'll publish a special kernel running the new code. But with the ability to customize it.
The goal is to let people try adjustments and share them
When the 2.3.3 update was released a few days ago, my immediate reaction was positive. I noticed how dramatically better the greys looked. Colors looked more accurate. I viewed the change as positive. I was quite vocal about how this was a fix, not a problem.
http://forum.xda-developers.com/showpost.php?p=11632473&postcount=7
http://forum.xda-developers.com/showpost.php?p=11631763&postcount=56
http://forum.xda-developers.com/showpost.php?p=11630603&postcount=49
http://forum.xda-developers.com/showpost.php?p=11629424&postcount=41
http://forum.xda-developers.com/showpost.php?p=11628604&postcount=30
http://forum.xda-developers.com/showpost.php?p=11618865&postcount=448
http://forum.xda-developers.com/showpost.php?p=11618733&postcount=446
Unfortuntately, after nearly three full days of use I must take back every single one of the above posts. My screen looks terrible. The colors ARE more accurate. The greys ARE much better. However, overall my screen looks like it has jaundice. Everything listed in post #49 referenced above (ie. the dialer) does look dramatically better. However, my whites are terrible. They are not "yellow" per se, but they look like they have a slight yellow tinge like a subtle parchament effect. And honestly, I think since I knew this was an intended fix I convinced myself to like it. I figured the yellow was just my imagination because it was overly blue before, and yellow is the opposite of blue. If I look at my Facebook widget, GMail app, or Market app objectively three days later I can honestly say the yellow is real, and it is quite gross. When compared directly to my girlfriend's myTouch 4G the change is even more apparent. It's not that her whites are overly blue...mine really do have a subtle yellow tinge. And although stock and voodoo are both a bit oversaturated, the new 2.3.3 cover profile does appear undersaturated or "washed out."
Last night I reverted to voodoo color and WOW, it was a breath of fresh air. The colors are not as accurate. However, I don't care. The jaundice is gone, and my screen is vibrant again. If I must accept a tradeoff, I'll take the vibrant oversaturated colors over the sickly jaundice update colors. And this is coming from someone who initially viewed the change as overwhelmingly positive. I suppose subtle differences in sAMOLED manufacturing and each person's own perception of color make each person's preference different. Some people's screens may not have the yellow mine does. However after almost three days of trying to like the new profile, and then a VERY throrough comparison of stock 2.3.2, voodoo, and 2.3.3 ...I'll stick with voodoo. I just can't take the LED jaundice.
Thanks for your hard work supercurio. I'm really looking forward to the calibration tools.
You know @mhaedo, if it a screen looks terrible (in some situations) it's always because the color rendition is not accurate.
Despite each screen physical/technical limitations.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
supercurio said:
You know @mhaedo, if it something looks terrible it's because the colors are not accurate.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
Click to expand...
Click to collapse
Well greys are definitely more accurate and look great. However I suppose you are right. As a whole, it is not accurate. I just purchased your voodoo donate market app to support the development. Thanks again.
Sent from my Nexus S using Tapatalk
supercurio said:
You know @mhaedo, if it a screen looks terrible (in some situations) it's always because the color rendition is not accurate.
Despite each screen physical/technical limitations.
People will tell you "it's washed out because it's calibrated" => wrong.
There is nothing more beautiful − objectively − than a accurately color calibrated screen.
I mean, with a calibrated screen you just forget it because everything is how it should be.
Because it becomes neutral, you don't see the screen anymore, only the images displayed on it.
Thanks for your report!
Click to expand...
Click to collapse
I tend to disagree that people forget about a color calibrated screen. Actually, I know it to be completely false. Most best buy locations have a color calibrated TV display where they have two TVs side by side; one calibrated and one not. If you ask people which TV looks better 99 out of 100 people will tell you the overly blue saturated TV is clearly more bright and has deeper blacks. Those people are wrong. That is exactly what is going on here and its exactly why Samsung and others do this to displays. I'm all for giving people the choice when it comes to their screens but I'm also for not letting people perpetuate a falsehood; I've looked closely at my screen and my wife's, looked at every "horriblely" yellow tinted screen people have posted pictures of and I stand by my statement that there us nothing wrong. People are just used to horribly tuned screens.
Sent from my Nexus S using XDA Premium App
There is calibration and calibration.
Often, the name calibration is used for reddish screen tones and dull colors.
It should only describe a rendering scientifically accurate that fit the intended target color space.
Most times: sRGB color space.
However, I fully agree on the temperature. 6500K, which is the natural sRGB white point is fine compared to natural colors in exterior, but it's rarely the best choice for screens except for people working on imaging only.
I don't think either it's the absolute best choice for a mobile display.
- Cooler (more blue) temperature look better inside especially: more.. white
- We are used to blueish screens. As a consequence 65000 looks strange to most of us.
Polls don't mean a lot, if there are different screen versions, it's possible that the update works great on some screens and not on others.. It's possible that the people answering the Engadget poll have in majority devices with the same screen for which the update worked great.
The Google forums posts say exactly the opposite, 90%+ not happy and only a few happy.
In my opinion it is not possible to think that the colors on the screen of my phone look correct. The screen colors look like something you find on a cheap LCD or an old LCD screen with worn out back light that gives no more contrast.
Anyhow with Supercurio's kernel the issues is temporarily fixed.
Thanks for the hard work!
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
kenvan19 said:
I tend to disagree that people forget about a color calibrated screen. Actually, I know it to be completely false. Most best buy locations have a color calibrated TV display where they have two TVs side by side; one calibrated and one not. If you ask people which TV looks better 99 out of 100 people will tell you the overly blue saturated TV is clearly more bright and has deeper blacks. Those people are wrong. That is exactly what is going on here and its exactly why Samsung and others do this to displays. I'm all for giving people the choice when it comes to their screens but I'm also for not letting people perpetuate a falsehood; I've looked closely at my screen and my wife's, looked at every "horriblely" yellow tinted screen people have posted pictures of and I stand by my statement that there us nothing wrong. People are just used to horribly tuned screens.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Look, I'll agree that an overtly "blue" tinted screen is not good, both for colour accuracy and the life of your SAMOLED screen.
But, I do not for a minute believe the current 2.3.3 colour profile is anywhere close to "calibrated" or "accurate". It's not. Some are experiencing extreme yellow tint and washout. Also as supercurio's Voodoo colour profile has demonstrated the "purple tint" issue can be eliminated without introducing a yellow tint.
And I will repeat this over and over again until I can't type. NOT all SAMOLED screens are the same as supercurio pointed out. There are displays out there more negatively impacted by the 2.3.3 driver update.
supercurio said:
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
Click to expand...
Click to collapse
You rock!
I agree about selling the NS due to 2.3.3. I never intended to unlock my bootloader and mess with the kernel.. But here we are, and thankfully you did the amazing work of helping us out.
And I agree there's room to improve (and I will leave that to the master), there is still too much blue tint on my screen, even if the purple tint has been eliminated. I can imagine obtaining a 6500 temperature on this phone, and not the yellow tinted mess Google provided.
supercurio said:
You're welcome.
It's barely a choice, I would prefer selling my Nexus S than using it with 2.3.3 colors
Voodoo color profile V1 currently is app is far from perfect however. I gave it a 5 or 10 rating only.
− Began porting latest Voodoo color code and code documentation in 2.3.3
Click to expand...
Click to collapse
based on the downloads of my kernels...people running 2.3.3 prefer "2.3.2 w/voodoo colors" 2:1 over stock "2.3.3 colors"
thanks for your attention
MadFerIt2011 said:
Look, I'll agree that an overtly "blue" tinted screen is not good, both for colour accuracy and the life of your SAMOLED screen.
But, I do not for a minute believe the current 2.3.3 colour profile is anywhere close to "calibrated" or "accurate". It's not. Some are experiencing extreme yellow tint and washout. Also as supercurio's Voodoo colour profile has demonstrated the "purple tint" issue can be eliminated without introducing a yellow tint.
And I will repeat this over and over again until I can't type. NOT all SAMOLED screens are the same as supercurio pointed out. There are displays out there more negatively impacted by the 2.3.3 driver update.
Click to expand...
Click to collapse
You are entitled to your opinion but I will just say this: I have not seen a single picture of a screen that possesses this "yellow tint" that does not look normal to me. You're right though, SuperCurio fixed the purple tint without normalizing the colors, however his fix (this isn't meant as a slight to SuperCurio as I am a great believer in his work and his skill as a developer) didn't actually make the screen look natural. I still hold to my belief that what most people are claiming is a bug is really just a result of the fact that manufacturers have been using this type of over-blue saturation for years and that most people's eyes have become accustomed to it not to mention the fact that our eyes are easily tricked into seeing bright blue as brighter white.
kenvan19, you need to see how a professionally calibrated screen look like
supercurio said:
kenvan19, you need to see how a professionally calibrated screen look like
Click to expand...
Click to collapse
I used to calibrate screens professionally. I calibrated all the screens in my home, my parents home and my wife's parents home. I have quite a lot of experience with the subject, actually, and I'd really appreciate not being talked down to about it.
Great news keep the good work man
I'm getting ready for Donation cheer
kenvan19 said:
I used to calibrate screens professionally. I calibrated all the screens in my home, my parents home and my wife's parents home. I have quite a lot of experience with the subject, actually, and I'd really appreciate not being talked down to about it.
Click to expand...
Click to collapse
Ah okay sorry. I'll be interested by your collaboration then with the upcoming release, especially if you still have calibration hardware !
Since I can't see an SGNote in a store yet, curious if the SAMOLED's less than natural colors ever bothers you, they seem to bother me on the lower resolution SAMOLED phones but a bit less on the same res but lower pixel density Tab 10.1 screen (however I prefer Transformer's IPS for a tablet)? -Thx
P.S. - I've heard mention in video reviews that the SGNote does have better color calibration than its other SAMOLED's handhelds.
http://www.mobiletechreview.com/ubbthreads/showflat.php?Number=41813
"Blacks are extremely deep and colors are richer than life, which is typical of Samsung's Super AMOLED display technology. For this high end phone, Samsung spent some time calibrating and tweaking it, and the blue color cast found on other Galaxy phones is at a minimum, and pure black images are pure black with no banding or light patches."
http://www.youtube.com/watch?v=Es7orfYUc3w#t=03m57s
There are three color settings that are select able by the user. They go from very saturated to about normal.
dennishhh said:
There are three color settings that are select able by the user. They go from very saturated to about normal.
Click to expand...
Click to collapse
I didn't know that, cool, I'll look into that, if anyone uploads a YouTube video I'd like to see if that shows up..-Thx
same as computer monitor
i was shocked at how different the colors where when i got my capitvate. unnatural is the only way to put it. took me a long time to get use to the pumped up color amoled screen. (certain colors are increased because that is ones your eyes see easier making the screen pop) so when i was thinking of buying the note i had read that samsung gave the owner the choice to change that pumped up look to a more natural scheme i was thrilled. the lower saturation of color feels more closely to regular lcds. when i hold the phone next to my high end computer monitor with the same picture they are very similar in hue and saturation. although sometimes when i am showing off the big screen phone to friends i switch to the standard amoled setting (because the colors pop) i usually choose the lcd type setting for everyday use. hope this helps.
bedspringlex said:
i was shocked at how different the colors where when i got my capitvate. unnatural is the only way to put it. took me a long time to get use to the pumped up color amoled screen. (certain colors are increased because that is ones your eyes see easier making the screen pop) so when i was thinking of buying the note i had read that samsung gave the owner the choice to change that pumped up look to a more natural scheme i was thrilled. the lower saturation of color feels more closely to regular lcds. when i hold the phone next to my high end computer monitor with the same picture they are very similar in hue and saturation. although sometimes when i am showing off the big screen phone to friends i switch to the standard amoled setting (because the colors pop) i usually choose the lcd type setting for everyday use. hope this helps.
Click to expand...
Click to collapse
It does help, thanks, how is that color setting changed?
P.S. - Even on my newer Samsung TVs, when someone with blue eyes comes on the screen they can look fluorescent fake giving it a sci-fi vibe that can look ridiculous!
SMARTPHONEPC said:
I didn't know that, cool, I'll look into that, if anyone uploads a YouTube video I'd like to see if that shows up..-Thx
Click to expand...
Click to collapse
Zedomax did it http://www.youtube.com/watch?feature=player_detailpage&v=RsmDvvckt6k#t=1096s but ideally still would like to see it in person. The higher res screen must help as the colors are not bothering me like they do on lower res SAMOLED screens. I'll check out the 720p SGNexus in person even though I don't think it has the SGNote 3 color settings ("Dynamic, Standard, Movie" in Settings->Display-Screen Mode) that provide more user control.
Still would also like to see the SGNote with other launchers+cool live wallpaper as I'm no fan of the stock TouchWiz look..it shouldn't be too difficult to make it look cooler than stock right?
I've seen many Youtube Note videos with max brightness (some about e-reading), but almost none with the lowest brightness setting.
So, what do you think of reading at night with the Note, with low or no exterior light? Are white letters on black blackground too bright that becomes unconfortable?
What is your experience with apps like screen filter?
Those who come from HTC phones, do you find Note's screen more stressful to your eyes?
I've owned htc and sony phones and the Note's screen is very vibrant and great for night reading. Even on the low brightness in a dark room, you won't have trouble to read unless you have a bad eye sight.
Only people who are used to smaller screens or have pain in the eye will find the night usage painful for their sight. I use it every night before sleeping - no complains so far.
My fear is that Note will be too vibrant and brightfull and will strain my eyes.
For instance, I prefer reading at night with my HD2 than with my Asus Transformer, because it has a lower brightness level.
I don't know about you but I've also own a HD2 and I found the amoled screen very pleasant compare to every htc phones. The brightness can be toggle to suit you. But it's better that you test before in a shop if you are afraid.
There's an app called screen filter on market where you can lower the brightness until the letters are almost invisible. Great for night time reading!
Sent from my superior GT-N7000 using Tapatalk
I use it on my HD2, but I've read here that Note's screen doesn't deal well with it and the image becomes greyish
Zamboney said:
There's an app called screen filter on market where you can lower the brightness until the letters are almost invisible. Great for night time reading!
Sent from my superior GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Yep, I find it easy to read at night but only with screen filter. Must have app.
It is pretty bright at night, even with white text on a black background, but no problem if you use Screen Filter or one of the other several similar apps to dim it further. I have toggles on my home screen for several different filter levels for different purposes. Also, I use the night-vision mode that comes with Chainfire3D to turn it to red text on a black background, for even better night time reading.
With Fbreader you can just change the color of the text to something closer to black and have night mode with the lowest brightness setting on. Voila! Very clear and easy to read in pitch dark.
.....
My experience is a little different to others in the thread.
I also come from using an HD2 and to me, reading at night is a weakness for the Note. Even with saturation and contrast adjusted, the pentile display really stands out to me when you're (a) in a dark room and (b) holding the Note quite close to your eyes.
Both these are true when I'm reading. It's not particularly uncomfortable but just a bit annoying.
Could you detail further the 'pentile experience'? You see pixels or 'grain'?
I've had lots of other phones and can with certainty say that I've never had a book reader as good as my beloved Note. Pentile or not.
Sent from my superior GT-N7000 using Tapatalk
myself11 said:
Could you detail further the 'pentile experience'? You see pixels or 'grain'?
Click to expand...
Click to collapse
I can see the separation between the pixels as I tend to hold it quite close on a low brightness when reading. It doesn't make it any more difficult to read, and of course the resolution outweighs that negative, but it just makes it look a little bit less perfect.
I am using Screendim application and it works much better than screen filter. There is Screendim trial just for three days.
Amoled screen cannot be made lower brightness than the default so it must be using contrast features to make it dimmer.
I have to say that reading is the primary reason why I bought the Note. I read a lot of ebooks. I find the Note to be a perfect size for reading at night in bed.
I have never found the brightness an issue... What u need is a good reading app. Thats what makes the difference.
I use Moon Reader Pro and epubeader (free on the Market and can also read .mobi). Both these programs have the ability to change the text color and background and brightness.
I find that black background with pale grey/blue text is the easiest to read while conserving most battery power.
For me, Note is amazing, and if talking about brightness, it can auto-adjust itself.
I agree with documents transformed to pure black backgrounds and maybe 10% black to white text color is perfect for the eye, so you can almost fall asleep while your phone saves battery.
For some reason ScreenFilter worked better on my S2 than it does on the Note. Using ScreenFilter just makes the picture look bad... washed out and difficult to read. I wish my Note could have lower brightness on the lowest setting.
Maybe Samsung doesn't want to go lower to avoid showing imperfections.
Tubgirl said:
For some reason ScreenFilter worked better on my S2 than it does on the Note. Using ScreenFilter just makes the picture look bad... washed out and difficult to read. I wish my Note could have lower brightness on the lowest setting.
Maybe Samsung doesn't want to go lower to avoid showing imperfections.
Click to expand...
Click to collapse
I find it better if you use the Voodoo screen tuning app - worth trying
Hey everyone. Since faux123 has implemented gamma controls with his most recent beta kernel and app, I think it'd be good to keep his thread from being flooded with color and gamma numbers. Post the here instead!
Please post which ROM and kernel version you are using. Please provide a few comments about your setting, such as whether you aimed to achieve neutral colors or punchy colors. Also mention if you have experienced yellow tinting when on stock.
Try to adhere to the format below.
Code:
r[b]XXX[/b] g[b]XXX[/b] b[b]XXX[/b]
r[b]XX[/b] g[b]XX[/b] b[b]XX[/b]
r[b]XX[/b] g[b]XX[/b] b[b]XX[/b]
Below is a post I made in the faux kernel thread about how to reference your gamma adjustments.
Hung0702 said:
I used this tool and have gotten color around where I want it. I recommend you save the image and view it in an app that will display it 1:1 scaling. I used Photo Editor for this purpose. It's important that you view the image 1:1 so the pixels of the image coincide exactly with the pixels of the screen.
Now, everyone's display is a little different from the next, and everyone has different color preferences. I personally dislike cold color temperatures.Your mileage may vary.
I suggest you leave the colors at 255, and only adjust Gamma Amp Adjust 0, one slider at a time. As the site says, aim for 2.2 in each of the firsy four columns. The remaining columns should fall in line. Then, adjust the color by lowering them one by one until you achieve a neutral color representation. I suggest that you keep one of the sliders at max and lower the other two accordingly (i.e. keep Red maxed and lower Green amd Blue).
I am using r255 g250 b245; r7 g13 b31. Note that this setting is for punchy, but accurate color. I came from a Galaxy S and used Voodoo Kernel, and this appears very close to the preset for "Punchy." Also note that I have had no issues yellow tinting, so the setting for your display may be different.
I'm not sure how Gamma Amp Adjust 1 affects the gamma other than reversing the effect of Gamma Amp Adjust 0.
Even with the the blue gamma maxed, the best I could get for blue is 1.8, no where near the 2.2 target. I have no iea what this means, though.
EDIT: After some consideration, I decided to have all three color gammas set to 1.8 (r1 g3 b31) and the colors to r255 g241 b255. I'm not sure if the color is better or worse from having 2.2 for Red/Green, but if one color is off, might as well have the other colors equally off.
EDIT 2: r228 g213 b200; r13 g9 b31; b7 yield the best colors for me. It's a tad shy of neutral (a little warm) but the gamma appears to be on point.
Click to expand...
Click to collapse
I'm on ParanoidAndroid BetaSEVEN and using faux kernel 002b5.
Code:
r[b]228[/b] g[b]213[/b] b[b]200[/b]
r[b]13[/b] g[b]10[/b] b[b]31[/b]
r[b]0[/b] g[b]0[/b] b[b]7[/b]
I have found this setting to be punchy and the colors appear pleasantly saturated. Dark greys tend to have an olive tint, but light grey and other colors appear fine.
I never had a yellow tint on my display, nor have I seen any dead pixels.
Stuck with more basic settings.
247,241,252-0,0,31-0,0,16
The colors I find, have solid whites and solid greys. No tints at all, which is what I've been striving for.
qwahchees said:
Stuck with more basic settings.
247,241,252-0,0,31-0,0,16
The colors I find, have solid whites and solid greys. No tints at all, which is what I've been striving for.
Click to expand...
Click to collapse
Well I certainly feel silly. All that time wasted using gamma calibration tools and I didn't just opt to pick which looked best to my eyes. It's not a punchy as I'd like it to be, but I got to admit, it's better than my settings.
Hung0702 said:
EDIT 2: r228 g213 b200; r13 g9 b31; b7 yield the best colors for me. It's a tad shy of neutral (a little warm) but the gamma appears to be on point.
Click to expand...
Click to collapse
What about Gamma amp adjust 1 red and green? Just 0 I guess?
I created a thread a few days ago with a public spreadsheet for this. Would be awesome for everyone to input their values
http://forum.xda-developers.com/showthread.php?t=2039607
Sent from my Nexus 4 using xda premium
As post above states there's already a thread (by Ngo93) with a Google Doc that allows everyone to share their settings together so it's all maintained together rather than having lots of individual posts to check.
Thanks
AvRS
Hey moto owners,
I have Moto X pure and after comparing it with my friends 1097, noticed that 1097 has better colors (white does not look so "dirty").
As I understand both models have AMOLED screens, so question is: Is it possible to adjust screen colors?
Use CF Lumen. It does wonders for white balance.
I use the app ”Screen Balance”.
CF.Lumen is the only app that won't brighten your blacks because it's the only one where you adjust RGB levels in a downward direction instead of raising levels. My custom filter is set to R=0.965 G=0.925 B=1.000. This gives a nice, slightly warm white balance.
Using Twilight daily.