Color Calibration - G Pad 8.3 General

Any suggestions on how to adjust the display colors on the V500?
I feel that the bluish tint is a bit to much on the tablet
Thanks!
Sent from my LG-V500 using xda app-developers app

ayserk56 said:
Any suggestions on how to adjust the display colors on the V500?
I feel that the bluish tint is a bit to much on the tablet
Thanks!
Sent from my LG-V500 using xda app-developers app
Click to expand...
Click to collapse
Lucky! I wish mine had a bluish tent... Wanna Trade? Lol (I much prefer blue for some odd reason) mine has a yellow tent (warmer) to It, I use the root app called trickster to a just it. You will need to change the cpu governor to performance but it works.
Sent from my LG-D800 using Tapatalk

joshuadjohnson22 said:
Lucky! I wish mine had a bluish tent... Wanna Trade? Lol (I much prefer blue for some odd reason) mine has a yellow tent (warmer) to It, I use the root app called trickster to a just it. You will need to change the cpu governor to performance but it works.
Sent from my LG-D800 using Tapatalk
Click to expand...
Click to collapse
lol .. didn't know there's such variability in the device (that's not good). I haven't rooted mine yet, but will probably do so very soon to get this app (and many others!). Thanks for the tip!

Also there an app called screen adjuster in the play store that works well. What's funny is mine had the yellow tint and changing ROMs made a huge difference

chadderbox said:
Also there an app called screen adjuster in the play store that works well. What's funny is mine had the yellow tint and changing ROMs made a huge difference
Click to expand...
Click to collapse
Screen Adjuster does the magic on Asus Memo Pad FHD too.
The screen is too "dirty" (brownish) even turn the Splendid to -10. However, with the combo with Splendid (-5 in white level and +3 on color depth) and Screen Adjuster (+2, 0, +12), problem fixed.
On top of that, you don't need root to make it work.
Frankly, Android should have RGB and Gamma tuning in Developers section (like Windows) to let users to fine tune white balance.

mingkee said:
Screen Adjuster does the magic on Asus Memo Pad FHD too.
The screen is too "dirty" (brownish) even turn the Splendid to -10. However, with the combo with Splendid (-5 in white level and +3 on color depth) and Screen Adjuster (+2, 0, +12), problem fixed.
On top of that, you don't need root to make it work.
Frankly, Android should have RGB and Gamma tuning in Developers section (like Windows) to let users to fine tune white balance.
Click to expand...
Click to collapse
Hi where can i find this Splendid adjustment thing? Couldn't find in app store...

hookwai said:
Hi where can i find this Splendid adjustment thing? Couldn't find in app store...
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Click to collapse
https://play.google.com/store/apps/details?id=com.netmanslab.sa
Sent from my LG-V500 using Tapatalk

joshuadjohnson22 said:
Sent from my LG-V500 using Tapatalk
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Click to collapse
Installed Screen Adjuster, setting put to +2, 0, +12. What about this part on Splendid (-5 in white level and +3 on color depth)... Can't find any setting for this. Please advise.

Found the settings of +2,0,+12 to really help with that yellowish tint. It looks much closer to my G2 screen now. Thanks.

Mobius360 said:
Found the settings of +2,0,+12 to really help with that yellowish tint. It looks much closer to my G2 screen now. Thanks.
Click to expand...
Click to collapse
Actually, color temperature is more accurate on the gpad (6153k) than on the g2 (7092k). Your screen has to be calibrate close to 6500k to display a perfect white. 7000 is too cold as most lcd outhere, your eyes are accustomed to see bluish colors on your TV and your other devices.
The main issue on the gpad calibration is the gamma setting as shadows tends to be too dark. Set contrast on -25 with screen adjuster will reveals a lot of details in the dark areas of a picture.

bobo69 said:
Actually, color temperature is more accurate on the gpad (6153k) than on the g2 (7092k). Your screen has to be calibrate close to 6500k to display a perfect white. 7000 is too cold as most lcd outhere, your eyes are accustomed to see bluish colors on your TV and your other devices.
The main issue on the gpad calibration is the gamma setting as shadows tends to be too dark. Set contrast on -25 with screen adjuster will reveals a lot of details in the dark areas of a picture.
Click to expand...
Click to collapse
I love me some blueish whites You are right I have gotten use to it and love it. I set the contrast and look forward to see the difference

Mobius360 said:
Found the settings of +2,0,+12 to really help with that yellowish tint. It looks much closer to my G2 screen now. Thanks.
Click to expand...
Click to collapse
Thanks a lot!
That configuration gave me a real natural look and nice whitey whites.
I was using 0,0,14 before (as I thought red adds up to the yellow) and it gave me a too bluey look.
Now it's perfect!

Most of the gripes I've seen on xda with the non-GPE version are around a yellowish screen and the brightness is too low.

Related

Screen calibration?

http://www.displaymate.com/OLED_Galaxy_S123_ShootOut_1.htm
The OLED screen on the GS3 is incredible because of it's intense contrast and instant refresh time, but there a many things wrong with it out of the box, and only because Samsung marketing is driving the settings for it....
The color gamut is too high. It looks good in the store but makes the colors look cartoony, and can decrease lifetime of the display. Is there something that can get it closer to the sRGB gamut used by Android? (90-110% of the gamut)
The autobrightness is very poor in this case, as it does not go low enough in the dark, and does not go high enough in the sun. Has anyone made a mod that has proper autobrightness values, with some middle values turned slightly lower for battery savings?
The white point is very very blue! This makes the display look more white, but this is actually very bad for the display. Since the reason why Samsung needed to have PenTile is because blue pixels die quickly, why is the white so blue? Is there some way to make it properly white (daylight, about 6500k?), in order for better color accuracy and to preserve display lifespan?
At some point, supercurio released a voodoo screen application, but since then I have not seen any sort of application that can properly calibrate the screen...
My cousin has one and it is not like that.. I would return it
Sent from my HTC Velocity 4G using xda app-developers app
For a new one
Sent from my HTC Velocity 4G using xda app-developers app
Hunt3r.j2 said:
http://www.displaymate.com/OLED_Galaxy_S123_ShootOut_1.htm
The OLED screen on the GS3 is incredible because of it's intense contrast and instant refresh time, but there a many things wrong with it out of the box, and only because Samsung marketing is driving the settings for it....
The color gamut is too high. It looks good in the store but makes the colors look cartoony, and can decrease lifetime of the display. Is there something that can get it closer to the sRGB gamut used by Android? (90-110% of the gamut)
The autobrightness is very poor in this case, as it does not go low enough in the dark, and does not go high enough in the sun. Has anyone made a mod that has proper autobrightness values, with some middle values turned slightly lower for battery savings?
The white point is very very blue! This makes the display look more white, but this is actually very bad for the display. Since the reason why Samsung needed to have PenTile is because blue pixels die quickly, why is the white so blue? Is there some way to make it properly white (daylight, about 6500k?), in order for better color accuracy and to preserve display lifespan?
At some point, supercurio released a voodoo screen application, but since then I have not seen any sort of application that can properly calibrate the screen...
Click to expand...
Click to collapse
Samsung anything with a screen is this way. Just go look at this TV, they are bluer than anybody else's. They look good in the bright showroom but in your actual house? Not so much unless you just love blue.
I am guessing a fix can happen in aosp/aokp where they have the screen calibration options.
Sent from my ADR6425LVW using xda app-developers app
nosympathy said:
Samsung anything with a screen is this way. Just go look at this TV, they are bluer than anybody else's. They look good in the bright showroom but in your actual house? Not so much unless you just love blue.
I am guessing a fix can happen in aosp/aokp where they have the screen calibration options.
Sent from my ADR6425LVW using xda app-developers app
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Click to collapse
I just found out about Voodoo Color. Maybe we can get some kernels that work with it?
Hunt3r.j2 said:
I just found out about Voodoo Color. Maybe we can get some kernels that work with it?
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Click to collapse
That'd be great. I am on Verizon tho :/. No custom kernels yet.
I love OLED displays I just hate how.blue they are. Atleast this one isn't as blue per that article as some others I have seen.
Sent from my ADR6425LVW using xda app-developers app
nosympathy said:
Samsung anything with a screen is this way. Just go look at this TV, they are bluer than anybody else's. They look good in the bright showroom but in your actual house? Not so much unless you just love blue.
I am guessing a fix can happen in aosp/aokp where they have the screen calibration options.
Sent from my ADR6425LVW using xda app-developers app
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Click to collapse
As far as TV's go, those are way more easy to tweak display settings on than a phone display. I agree that a showroom Samsung is really really blue, but that is easily fixed in the color settings.
thebrokn said:
As far as TV's go, those are way more easy to tweak display settings on than a phone display. I agree that a showroom Samsung is really really blue, but that is easily fixed in the color settings.
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Click to collapse
Yeah...sorta. lol...
There is a forced level of blue in the service menu you cannot change without proper calibration equipment.
That is beside the point though. I know CM7 had a calibration setting. Does CM9/AOKP have this still? I haven't had a device that could run AOSP in a long time sadly.
Sent from my ADR6425LVW using xda app-developers app

Has anyone actually used the alleged "display callibration" software?

And if anyone has, can you tell us A: what parameters it actually lets you change, B: do these changes apply universally or only in certain apps, and C: if this is actually supposed to affect the physical properties of the display in some way (in the way that the contrast control on an LCD TV might), or if it's just doing a Bravia-like trick and messing around with the pixel values?
+1
I don't really need it, but since lots of people talk about it - i'm curious if it's real, because nobody provided any screenshot/details of this feature.
Akiainavas said:
+1
I don't really need it, but since lots of people talk about it - i'm curious if it's real, because nobody provided any screenshot/details of this feature.
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Click to collapse
Actually a screen shot has been posted several times. Also apparently it is in the 4.2 test version given to Vodafone
stefanve said:
Actually a screen shot has been posted several times. Als apparently it is in the 4.2 test version given to Vodafone
Click to expand...
Click to collapse
Yep according to xiFIL IT'S similar to the
Calibration found in the s2 but better
Sent from my HTC One X using XDA Premium App
Hope it makes a difference
I've used it, it just lets you set the Hue and Saturation.
REAVER117 said:
I've used it, it just lets you set the Hue and Saturation.
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Click to collapse
Anything else. Nothing about the contrast?
Sent from my HTC One X using XDA Premium App
i think saturation will fake up the contrast to for normal people
REAVER117 said:
I've used it, it just lets you set the Hue and Saturation.
Click to expand...
Click to collapse
http://img.talkandroid.com/uploads/2013/01/sony_xperia_zl_display_calibration-630x472.jpg
That's prolly the one and only screenshot that got out on the web. A real test would be great!
Like make a screenshot with unaltered settings then next is try to adjust it and let us see how big is the difference.
I repeat my earlier question: does anyone know what this software actually does? For example, suppose I'm looking at a screen full of white pixels (red 255, green 255, blue 255), and I've used the software to push the white balance towards red; what does that do? Does it actually change the physical display characteristics of the screen, so I'm now still looking at pixels that are red 255, green 255, blue 255, but the screen has changed the way those RGB values are displayed, (i.e. red 255 is now brighter than it was and blue 255 dimmer); or is it simply hacking what is sent to the screen so that what was originally r255g255b255 is now r255g240b220 (or whatever)? And does this apply universally, or is it a subset of Bravia? And is there anything that can be tweaked other than the three controls we've seen in the screenshot?
Shasarak said:
I repeat my earlier question: does anyone know what this software actually does? For example, suppose I'm looking at a screen full of white pixels (red 255, green 255, blue 255), and I've used the software to push the white balance towards red; what does that do? Does it actually change the physical display characteristics of the screen, so I'm now still looking at pixels that are red 255, green 255, blue 255, but the screen has changed the way those RGB values are displayed, (i.e. red 255 is now brighter than it was and blue 255 dimmer); or is it simply hacking what is sent to the screen so that what was originally r255g255b255 is now r255g240b220 (or whatever)? And does this apply universally, or is it a subset of Bravia? And is there anything that can be tweaked other than the three controls we've seen in the screenshot?
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Click to collapse
indeed, hopefully but doubtfully you can change the color temperature of the led(s)
stefanve said:
indeed, hopefully but doubtfully you can change the color temperature of the led(s)
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Click to collapse
That seems unlikely, but it's just possible that it might allow you to tweak the display in the same way as you can tweak the red, green and blue "drive strength" on an LCD monitor.
Shasarak said:
That seems unlikely, but it's just possible that it might allow you to tweak the display in the same way as you can tweak the red, green and blue "drive strength" on an LCD monitor.
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Click to collapse
would be nice indeed. only time will tell
so can we finally get the fake AMOLED colors now? hehehhe
I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app
huball said:
I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app
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Click to collapse
but I want fake AMOLED rich color!
It should come in the 4.2 update
Sent from my Nokia 3210 using GPRS
huball said:
I've got it today. It doesn't have any screen calibration software. But, trust me, you don't need it
Sent from my C6603 using xda app-developers app
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Click to collapse
Does it have a bluish cast/tinge?
too me it seems that the screen ist brilliant and well balanced (colors). there might be better screens, but this one is awesome...
it's like a mercedes sl...this car isn't the best car, but who wouldn't love to drive it?
but maybe i'm the wrong person to judge about the screen, because i'm upgrading from an htc hd2. and this screen is really old (but i like it, though).

Sreen brightness and reflectiveness.

Hey, to those who already have the galaxy s4 can you confirm with me if its noticeably brighter than the galaxy s3? I know it's 258 lux in comparison to 213lux on the galaxy s3 but in real world use does it help a bit with sunlight legibility? Also is the screen less reflective than the s3?
Sent from my GT-I9300 using xda app-developers app
Yes and yes. I wouldn't call it the best phone to use in direct sunlight but it has improved quite a bit from the S3
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Thanks alot for replying, thought I wasn't gonna get a reply..lol
Sent from my GT-I9300 using xda app-developers app
Yes brighter. Same reflective to me. Overall, love S4 new 1080p screen.
From my mini review
hung2900 said:
Screen:
- Brightness: Oh well, the maximum manual brightness is not as bright as my Note 2 (A Brighter Note app activated), but outdoor visibility is way better. Under sun light with auto brightness, white is whiter (brighter), black under s much less blueish - mean darker. I can feel better in reflectiveness also. I think most reviewers forget to turn automatic brightness on.
Click to expand...
Click to collapse
It's completely readable under heavy sun light
_________________
Edit: a review said it's 475 bits birghtness with automatic brightness under heavy light.
Thanks!
Sent from my GT-I9300 using xda app-developers app
According to DisplayMate, on autobrightness it gets extra 30% brighter than on manual max.
Hey. Last night I noticed my SGS4 has a very reddish tint to an all black screen, compared to my SGS2 which is truly black (no light emitted).
During the day it is not noticeable but in pitch black you can see a strange dark red glow in black areas.
Anyone else experienced this?
suadion said:
Hey. Last night I noticed my SGS4 has a very reddish tint to an all black screen, compared to my SGS2 which is truly black (no light emitted).
During the day it is not noticeable but in pitch black you can see a strange dark red glow in black areas.
Anyone else experienced this?
Click to expand...
Click to collapse
Take a picture of it. If the screen is faulty, better replace it.
I'll try to make a picture later tonight. With the naked eye it was easy to see...
suadion said:
I'll try to make a picture later tonight. With the naked eye it was easy to see...
Click to expand...
Click to collapse
I never let me eyes go naked...:silly:
Take a photo when it's pich black with a black background.
I got my Telus s4 and it is for sure brighter when outside
Sent from my SGH-I337M using XDA Premium HD app
uhoh
My issue: the red subpixels stay on, this is the SGS4 and SGS2 viewing the same 100% black image.
If any black background has visible red tinting to it you should definitely contact Samsung or the store.
suadion said:
My issue: the red subpixels stay on, this is the SGS4 and SGS2 viewing the same 100% black image.
Click to expand...
Click to collapse
Absolutely faulty device. My S4 is absolutely black.
hung2900 said:
From my mini review
It's completely readable under heavy sun light
_________________
Edit: a review said it's 475 bits birghtness with automatic brightness under heavy light.
Click to expand...
Click to collapse
Could you post a picture showing its screen under heavy sun light? I would really appreciate it.
Thanks
altusan said:
Could you post a picture showing its screen under heavy sun light? I would really appreciate it.
Thanks
Click to expand...
Click to collapse
Sorry that I sold my phone already (check my thread), but I did try to do it but it's not as noticeable as seeing in the real life, or my cam is not enough for capturing the screen correctly
To see the red blacks you have to be in a very dark room. Mine has it too.
The only thing I dont like about the screen is that Samsung seems to have omitted the antireflective/oleophobic coating around the menu and back buttons, making fingerprints on the buttons stand out
suadion said:
My issue: the red subpixels stay on, this is the SGS4 and SGS2 viewing the same 100% black image.
Click to expand...
Click to collapse
Its a software issue it seems. Read post in the AT&T S4 forum: http://forum.xda-developers.com/showpost.php?p=40841213&postcount=104
sam2c said:
Its a software issue it seems. Read post in the AT&T S4 forum: http://forum.xda-developers.com/showpost.php?p=40841213&postcount=104
Click to expand...
Click to collapse
Thanks. Samsung told me I could send it in for repairs as they didn't know when an update would show up.

How do change colour configuration?

Just got a Nexus 4, hate the yellow tint and washed out display. Is there a way to calibrate the screen and adjust the colours? Also, is it possible to make the screen brightness brighter? I have it set to max and it still looks dim. Lastly, is there a chart that shows recommended values to get vibrant rich looking colours?
Thanks.
danv28 said:
Just got a Nexus 4, hate the yellow tint and washed out display. Is there a way to calibrate the screen and adjust the colours? Also, is it possible to make the screen brightness brighter? I have it set to max and it still looks dim. Lastly, is there a chart that shows recommended values to get vibrant rich looking colours?
Thanks.
Click to expand...
Click to collapse
You could use one of the many kernels out there, like franco, that permits color control. Well, you'll have to pay for an app(like franco kernel app) , but it's worth it.
danv28 said:
Just got a Nexus 4, hate the yellow tint and washed out display. Is there a way to calibrate the screen and adjust the colours? Also, is it possible to make the screen brightness brighter? I have it set to max and it still looks dim. Lastly, is there a chart that shows recommended values to get vibrant rich looking colours?
Thanks.
Click to expand...
Click to collapse
Here you'll find a public spreadsheet and a list of color control apps: http://forum.xda-developers.com/showthread.php?p=38619101
Custom kernel is required.
Sent from my Nexus⁴ using Tapatalk 4 Beta

Display settings thread

I haven't received the z3c yet but wanted to start theis thread early so everyone can post what display setting there using and any issue on the display. This is from the phone areana review.
" Color accuracy is way off on the Xperia Z3 Compact. Sony has gone purposefully with a colder, noticeably bluish display with color temperature reaching the whopping 10000K (while 6500K is the reference value, and everything above it is cold). Color balance in greyscale is noticeably skewed towards the blue across all brightness levels. Color purists have the option to adjust color balance with separate controls for red, green, and blue. With some fiddling (you’d need to add in a lot more red, and a bit more green to get to more balanced colors,*we tweaked it to the following values: red ~ 250, green ~ 190, blue ~ 0), you can get to the point where colors are not outrageously blue, but getting this right is no trivial task and requires either a trained eye, or a colorimeter."
Sent from my D6503 using XDA Free mobile app
It's great that we have white balance settings, but the only thing I don't like about it is that it decreases screen brightness when applied.
for me its Red 40, Green 75 and Blue 0
If anyone has a colorimeter at hand it would be greatly received if they could perform some tests and provide the optimum RGB values.
dillalade said:
If anyone has a colorimeter at hand it would be greatly received if they could perform some tests and provide the optimum RGB values.
Click to expand...
Click to collapse
I plan on doing this as soon as I receive my phone.
tocirah1 said:
I plan on doing this as soon as I receive my phone.
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Click to collapse
Awesome! this will be greatly appreciated.
Thanks! :good:
Anyone that had received the are you satisfied with the stock screen settings?
Sent from my D6503 using XDA Free mobile app
I'm pretty happy with the colors. Coming from N4, that always seemed a little dim.
damned91 said:
for me its Red 40, Green 75 and Blue 0
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Click to collapse
This looks good to my eye and a white paper reference. Cheers
cheapshot789 said:
Anyone that had received the are you satisfied with the stock screen settings?
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Click to collapse
No - I'm no color purist, but the extreme blue tint was very obvious and off-putting. Very puzzling choice on Sony's part, it makes the screen look really bad.
I turned off X-Reality and put it side-by-side with my Moto G and adjusted the sliders until it more or less matched my Moto G. I'm still fiddling with it, but right now I have it set to Red 120, Green 145, Blue 0.
Doesn't the display get significantly darker when using high values for white balance?
Leaving XReality on - I like R:20, G:20, B:0. Just warms things up a tad without overdoing it.
So is everyone experiencing the same blueish tint?
Sent from my D6503 using XDA Free mobile app
degraaff said:
Doesn't the display get significantly darker when using high values for white balance?
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Click to collapse
A little bit, I guess? It's still more than readable for me in sunlight, and I'm using Red 120 + Green 145.
I've been using Red 40 + Green 73. No "Image Enhancements"... my reality is enhanced enough, thank you. It does *appear* dimmer, but I'm going to assume that's a physiological color perception issue. You can increase the brightness of the display while keeping the ambient light sensor on, which is a nice feature. Also, the screen can still get blisteringly, stupidly bright if you disable the sensor and crank it all the way up, even with those settings.
I have a colorimeter, and I know that the diagnostics menu lets you do a series of display tests (including flipping to red/green/blue). Does anybody know if those panels apply your color balance settings? Or, alternatively, a good (preferably free) Android app to help with calibration?
Also, seriously, WTF Sony. The displays look almost comically bad straight out of the box. I feel bad for every user who buys the phone and never delves into these settings. :|
marumari said:
It does *appear* dimmer, but I'm going to assume that's a physiological color perception issue.
Click to expand...
Click to collapse
As far as I'm aware, the reason why Sony's white balance option makes the screen appear dimmer is because it's not really a true white balance option, but rather a sort of workaround where it adds a coloured transparent overlay to the screen. Higher values mean that the overlay becomes less transparent so the colour overlay will appear more intense while making the screen appear dimmer consequently. There are third party white balance apps in the Play Store which have exactly the same effect, although those also add a bit of lagginess to everything. But the colour and dimming effect is the same.
degraaff said:
As far as I'm aware, the reason why Sony's white balance option makes the screen appear dimmer is because it's not really a true white balance option, but rather a sort of workaround where it adds a coloured transparent overlay to the screen. Higher values mean that the overlay becomes less transparent so the colour overlay will appear more intense while making the screen appear dimmer consequently. There are third party white balance apps in the Play Store which have exactly the same effect, although those also add a bit of lagginess to everything. But the colour and dimming effect is the same.
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Click to collapse
Huh. I mean, I use Twilight (basically the Android version of f.lux) on my Nexus 5, and have never noticed lag issues. It is *definitely* an overlay, though. That's very surprising that Sony would use such a method, as they actually have access to the actual firmware. You would think, as such, that it would allow you to use ICC color profiles.
marumari said:
Huh. I mean, I use Twilight (basically the Android version of f.lux) on my Nexus 5, and have never noticed lag issues. It is *definitely* an overlay, though. That's very surprising that Sony would use such a method, as they actually have access to the actual firmware. You would think, as such, that it would allow you to use ICC color profiles.
Click to expand...
Click to collapse
Ah, no, I meant apps to correct the white balance, not colour measuring apps. I used to try one of such apps on my old xperia tablet s because its display had a noticeable yellow hue. It did make the colours better, albeit a little dimmer, but everything seemed to be laggy/choppy when the effect was applied.
Oddly, according to my Spyder4, good settings are R:0, G: 137, B: 255.
I'm not convinced...
tocirah1 said:
Oddly, according to my Spyder4, good settings are R:0, G: 137, B: 255.
I'm not convinced...
Click to expand...
Click to collapse
Well, the screen is said to be blueish and you're adding extra blue so of course that's not the way to fix it.

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