yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 General] supercurio:
Banding is only caused by some software set to 16bit mode instead of 24 without dithering to squeeze a little more FPS on gingerbread in waiting for ICS which brinks 2D hardware acceleration.

Hardware and software is fully 24bit capable nonetheless.

It also becomes a bit more noticeable (or some could say obvious ^^) because of the sharpening applied by default.
[Galaxy Note GT-N7000 General] sibere:
oh I see. Sorry a bit of misunderstanding here ;)

I didn't measure the DeltaE, I got this values from lesnumeriques website (see link in my previous post).
[Galaxy Note GT-N7000 General] supercurio:
Ok.

Movie mode is not more accurate. Its changing a bit color temperature by reducing available gamut.

Globally it adds more processing.
[Galaxy Note GT-N7000 General] SteveYorks:
supercurio -"Banding is only caused by some software set to 16bit mode instead of 24"

This would explain why Angry Birds Rio looks like it does. Is this the same reason why videos look like this also?

It's interesting to note that on my phone, photos and live wallpapers (like the Jellyfish or Aurora ones that come with the Note) are redered with perfectly smooth gradations.
[Galaxy Note GT-N7000 General] Blue1k:
There definitely is variance in terms of screen quality. My Note screen quality is very good. I've had the T989 and 2 different i9100s to compare to. My T989 had the worst quality and definitely had noticeable banding but limited blotching. I can't see this on my Note. If I had I would have returned it. I expect top notch quality from Samsung for a $750+ device.
[Galaxy Note GT-N7000 General] sirrdeezy:
is this screen problems a software issue or just defective phones
[Galaxy Note GT-N7000 General] TML1504:
as i see it both!
[Galaxy Note GT-N7000 General] LordManhattan:
I flashed the CM9 ROM today and the first thing i noticed was that most banding was gone. I checked the grey area in the market app, and funny enough the grey was just fine!
[Galaxy Note GT-N7000 General] sirrdeezy:
how do u lik the rom
[Galaxy Note GT-N7000 General] LordManhattan:
It's okay, but i restored back to ROMOW. Got a lot of FC's (as expected), but i can't wait until it's done. Very promising!

Didn't test videos though, so i can't say if the blockyness is still present.
[Galaxy Note GT-N7000 General] sirrdeezy:
oh okay im hoping this can be improved cause im really thinkin about jumping ship to the att note if there is nothing that can be done
[Galaxy Note GT-N7000 General] Note_E:
Same screen, no?
[Galaxy Note GT-N7000 General] noteworthy:
ICS is unlikely to fix the problem as the Nexus also has black clipping.Samsung needs to release an update to reset the gamma level or a developer comes up with an app.

I am guessing if the gamma curve is corrected,the GNote's display will no longer have that intensity and luminance which attracts potential buyers.Samsung will be weighing up whether this will affect sales before coming up with a fix.

The ideal is that they come up with a correct gamma movie mode so that we have the best of both worlds.The current movie mode improves the black clipping a bit but far from perfect.
[Galaxy Note GT-N7000 General] kurayamix:
I'm testing on black level image

Strange thing is if you check this picture in default web browser. You can see to number 1!!!!! But if you save it to gallery you can only see to number 4... :\

I can see the difference after install voodoo and click native.

On black level test picture in gallery. Now I can see to number 2 from before I see only number 4. Not so bad. :X

This really improve black blocky in movies to nearly gone. And even on calculator look better too!!!

Of cause It's not gone... because I still can't see number 1. But It's really improve.

If you means this software is developing and it can be better? then

Thank you, appreciate your work.

Little more question:

Is this software use many CPU usage or drain battery or not?
[Galaxy Note GT-N7000 General] onetonnoodle:
can I install supercurio's app even with stock gingerbread on my note? tia :)
[Galaxy Note GT-N7000 General] EarlZ:
Nope, it requires root.
[Galaxy Note GT-N7000 General] onetonnoodle:
oh i see, thanks for the info. :)

Have you tried supercurio's fix sir? My note has gamma issues, aka black banding. It's only affecting blacks/grays not being continuous which are apparent on videos with black background, but the colors are really rich and vivid. I was wondering if it can just be software corrected. :)
[Galaxy Note GT-N7000 General] kurayamix:
I'm can tell you that voodoo app reduce this black level issue but it's not gone.

Befor I can see from number 4 after apply patch I can see upto number 2. This help on black blocky video alots.
[Galaxy Note GT-N7000 General] EarlZ:
Yes I have, it improves the output on some video's but breaks it for some that other wise had no issues to begin with.
[Galaxy Note GT-N7000 General] onetonnoodle:
that's relieving. It appears to me that this black banding issue can indeed be fixed with proper software gamma calibration. :)

I really love my note, and couldn't find any other phone i'd choose over with, and this black banding is the only flaw I see on my note. Although it only bothers me on certain videos, nonetheless still bothered.
[Galaxy Note GT-N7000 General] pachi72:
I hope your right. This **** is annoying.
[Galaxy Note GT-N7000 General] onetonnoodle:
i have just rooted my phone and installed vodoo screen tuner. Uhm, noob question, how do I exactly use this app?
[Galaxy Note GT-N7000 General] kurayamix:
How to test?

off topic question....

Will Galaxy Note support Voodoo Control (Voodoo Sound)?
[Galaxy Note GT-N7000 General] TML1504:
no, due to a different DAC (yamaha instead of wolfson)!

but supercurio made a prog. called "louder" to boost the output +10,5dB,

if this is of any interest!
[Galaxy Note GT-N7000 General] onetonnoodle:
thanks kuyaramix. Wow, there really is a difference after comparing the overlays.

I wonder if it's possible to do the reverse of what supercurio is doing, I mean instead of making the lower numbers "brighter" make it go darker until around number 10 on the gammatest.png in a continuous fashion.
[Galaxy Note GT-N7000 General] BerreZ:
I'am not a technician , but I think you're right. Ont the Galaxy IIS the whole left column is dark so I think that's what needs to be reproduced.
[Galaxy Note GT-N7000 General] Hirudin:
Are there any

videos

of a Note rendering dark grays correctly? Frankly, I'm having a very hard time believing Samsung would alter the rendering in the default browser to compensate for this problem if the problem didn't exist in all Notes.

To say it another way: what does this look like in the stock browser on a supposedly "good" Note?

Does anyone want to sell their "good" Note? I've bought three from Amazon and all three have identical (as far as I can tell) banding and black crush. The color temperature is slightly different between them, but that is really only noticeable when you compare them side-by-side.
[Galaxy Note GT-N7000 General] EarlZ:
That might explain things.
[Galaxy Note GT-N7000 General] onetonnoodle:
earlz, I don't get it how your reply help explain things. I'd appreciate it if you can elaborate it to us.
[Galaxy Note GT-N7000 General] EarlZ:
Dithering is different from true-24bit, if you wish to know more why not go to that thread where I quoted it and ask supercurio, for sure he can elaborate.
[Galaxy Note GT-N7000 General] kurayamix:
Yeah this problem should be fix in opposite way....

By reducing gamma curve not rising it.

The hard part of this software is, how to config gamma curve for each device.

Because of variant level of hardware calibrate make it hard to do this automatically and have the same result...

I wonder is there possible to release software that enable custom gamma curve and let us calibrate it our self?

This should be better than release fixed gamma curve witch will not work good on every devices.
[Galaxy Note GT-N7000 General] onetonnoodle:
I agree with you. Maybe if it can have some sort of slider for adjusting the gamma to your preference it'd be a real treat. :)
[Galaxy Note GT-N7000 General] betoNL:
Did you try this? :

http://xdaforums.com/showthread.php?t=1366280

Cannot try it, it doesnt run on Speedmod kernel
[Galaxy Note GT-N7000 General] KInG GaME:
Tried this and various other things the **** which bothers me is the test video that came with my note renders perfect!
[Galaxy Note GT-N7000 General] EarlZ:
The test video that came with the phone does not have any color transition, it only uses a pureblack image, if you want to look for clipping on that video, check near the end where there are dangling objects, watch the reflection as it is about to fade you will see minimal clipping but thats about it. The clipping only happens when there is a need to transition from shades of colors.
[Galaxy Note GT-N7000 General] kurayamix:
Yeah I'm try that.

Well, the gamma adjust we want to control isn't linear.

So that software can't be use in this situation.
[Galaxy Note GT-N7000 General] Cetin:
This is from ics Browser.

Gesendet von meinem GT-I9220
[Galaxy Note GT-N7000 General] kurayamix:
Stock browser have image dithering. So it's won't effect by this problem.

On stock browser GB I can see to NO.1

PS. you can't capture this problem with screen capture. It's hardware problem...
[Galaxy Note GT-N7000 General] dzontra11:
Guys i just flash this stock rom and black bloks gone.

Check image.
[Galaxy Note GT-N7000 General] the.exver:
:eek: Have you tried it in dark enviroment? Can you provide download link, there are many XXKKA roms for different countries?
[Galaxy Note GT-N7000 General] KInG GaME:
check if video banding still exists
[Galaxy Note GT-N7000 General] dzontra11:
Sorry guys..still there less but still there.
[Galaxy Note GT-N7000 General] jezza333:
This is trash. I've flashed the leaked ICS rom which others have confirmed has removed the black clipping/banding issues, but I'm still getting them and can confirm it's only the lowest levels of black. A screencap viewed on a PC shows no decoding issues but the Note is just pathetic...

I tried running up the Voodoo screen tuner but it says the device isn't supported. Does my screen actually have issues, as opposed to the software problem people have described and is fixed in ICS? :confused:
[Galaxy Note GT-N7000 General] EdgaBimbam:
i tried chineese leak and sammy leak both had black clipping. Btw chineese leak calculator doesnt have color banding while sammy leak has.
[Galaxy Note GT-N7000 General] the.exver:
Don't use calculator as reference for color banding, you can use some other app like XDA taptalk app, the banding has gone on both ICS roms. Calculators blue gradient doesn't start from black on chinese ICS so that's why it looks ok. The black clipping is still here...
[Galaxy Note GT-N7000 General] jezza333:
I believe the black clipping [not banding] is actually a hardware problem with using RGBG Pentile and the only way to 'fix' it is an RGB display. I had NO issues on my S2 and the Galaxy Nexus experiencing the same problem implies to me that the cause is actually hardware - my charging animation while the phone is off even has clipping, and this is outside the OS - test it for yourself!
[Galaxy Note GT-N7000 General] the.exver:
Black clipping or color banding on gingerbread can't be seen under neon light or other lights in stores... But my hope base on that first battery screen when device is off and you can see pure gradient from grey to black for few seconds, it must be driver related or that gamma table or whatever... Maybe, just maybe, we have black clipping becaose there are couple of factories for Note (China, Korea, maybe more) and maybe some screens made for GT-I9220 are used for international GT-N7000 and that correct screen configuration can be found in bootloader of GT-I9220... Those that don't have black clipping say that they have HUE problems, but I like hue and color representation on mine and hope that there will be a solution for this black clipping soon, ICS solved banding as long as it doesn't band near black :)

Cheers

---------- Post added at 05:06 PM ---------- Previous post was at 04:59 PM ----------

But on first screen, before charging animation starts, there is prefect rendering of gradient and after few seconds darkdark grey area goes too bright and animation starts with ugly black clipping. Screen is fine until something loads... driver, gamma table, mdnie, or whatever that is not configured as it should have been...
[Galaxy Note GT-N7000 General] kurayamix:
what? i can clearly seen it on neon light...

just need the right video and picture to test.
[Galaxy Note GT-N7000 General] jezza333:
Yeah I agree with you here, it seems to be something core. I've tried flashing a few bootloaders and it has amounted to nothing so far.
[Galaxy Note GT-N7000 General] EarlZ:
The Galaxy S, Samsung Wave and Wave 3 use the same old SuperAMOLED and they play perfectly fine. But yes I do believe this issue is a hardware problem since a screen replacement can resolve the issue if you get lucky.
[Galaxy Note GT-N7000 General] jezza333:
There may be code in the hidden partitions Chainfire referred to in his TriangleAway thread that control the display. What's interesting is some users such as eitama simply don't have the problem at all, such as this:

Perfect.

Here's a low quality shot I took of my screen:

http://dl.dropbox.com/u/10922944/Picture 8.jpg

This was in DicePlayer and captured by a webcam:

http://dl.dropbox.com/u/10922944/Picture 3.jpg

Captured using the Android screenshot tool:

http://dl.dropbox.com/u/10922944/export_08.png
[Galaxy Note GT-N7000 General] EarlZ:
Thats probably the best battery charging icon I've seen, no obvious banding!
[Galaxy Note GT-N7000 General] the.exver:
Yes, with right pictures and test video you can see black clipping everywhere, especialy when you know where to search but on stock rom state that is presented in store you can't see it on calculator. I've had that problem the second day I bought mine, went to service and they looked at me like a loonatic :) i said "look at this, THIS IS WRONG!" and everything was fine :O and after a while I got that picture with numbers and Aironman clip and then went to service again, everything was fine, AGAIN, aaargh, so I demand them to turn of the f* light and theeeen they could see it without problems... I left my Note there for few days and got call from them saying that they can exchange my screen but would advise to wait a little bit more for there may be a software fix. And so I am waiting now :) and waiting and waiting... but if this doesn't get solved in near future I will demand the screen replacement, but screen is so good just that black clipping thing DAMN!

Me too, tried differend stock roms and all the same, but XXKKA "did" seam better than others...

That "if you get lucky" is something that just can't be right. I think that it is factory related, as I mentioned before. Made for I9220 that has slightly different hardware and maybe that gamma configuration, and than transfered to international N7000 manufacture becouse of something. Let say it like this: on exchange IF you get screen for I9220 it doesn't work again, if you get one for N7000 it works as it should. But this is just me guessing by things I read by now... Seen boxes on Net that say N7000 manufactured in Korea, GT-N7000 manufactured in China, and then GT-i9220 is manufactured in China... Mine box is GT-N7000 made in China came from Poland. On Device it says the same, but when I dial *#1111# it says FTA SW version I9220.003... don't know...

But the thing that is keeping my hope about this as a software issue is that first screen when you put it on charge while turned off.. those first few seconds confirms that hardware can do it without black clipping.
[Galaxy Note GT-N7000 General] k!DDa:
Hi guys,

can somebody upload the Voodoo Screen Tuning R&D app?

It not in the market anymore.

Thx
[Galaxy Note GT-N7000 General] SilverHedgehog:
I think it's not a hardware fault, it's Android.

I have the same thing on my HTC Desire (SLCD) - AOSP ROMs have banding (REALLY noticeable on the "Grass" wallpaper), while HTC Sense ROMs don't.

Obviously, Samsung's Android modifications don't go as far as HTC's, so I guess they didn't touch the issue.

Though I don't have any issues on my Note.
[Galaxy Note GT-N7000 General] kurayamix:
What? why remove it. :confused:
[Galaxy Note GT-N7000 General] pachi72:
Just got my Note and the screen is perfect.. Love it
[Galaxy Note GT-N7000 General] supercurio:
I'm working on the next gen application, the R&D app was just a demo.

It also occur to have some internal licenses issues which are not satisfying for me anymore so I removed it from market for now.

Note: re-distribution outside of my apps outside of Android market is forbidden, no matter if the app is downloadable free of charge or not.

− I prefer being very clear on that.

Now, stay tuned for the real app I'm working on since a long time!
[Galaxy Note GT-N7000 General] EdgaBimbam:
omg omg i thought that you abandoned this project ;) best news so far :)
[Galaxy Note GT-N7000 General] supercurio:
You're kidding ? :D

Nah it's the opposite => switching to the next step.
[Galaxy Note GT-N7000 General] btyork:
Bricks just got ... well you know.

GREAT NEWS! Even with the ICS release taking care of some of the banding/rendering .... it's still present, so looking forward to this.
[Galaxy Note GT-N7000 General] mcreego:
Finally a good news....omg I love you Supercurio...in these days waiting for your app I'm using my Sgs2. I can't stand banding and black pixellated pictures!!!
[Galaxy Note GT-N7000 General] voxano:
Congratulation! Good to see that you got what you wanted...

How bad is the banding on the darks during video payback?
[Galaxy Note GT-N7000 General] arjun90:
Request, Thanks!

Supercurio,

This may be a silly request, but do you think it is possible to build a 'mod' that does not require Root. Just requesting...

:D
[Galaxy Note GT-N7000 General] btyork:
I can almost guarantee that won't happen. Need root to edit those system files.

Swyped from a white note.
[Galaxy Note GT-N7000 General] supercurio:
I would like that very much, but because direct hardware access is required it's basically impossible due to security constrains.

However I'm advocating for something like a manufacturer root to Samsung. That would be fantastic even if accessible to only a few trusted developers.
[Galaxy Note GT-N7000 General] Sol Ido:
It's not an engineer's problem but a lawyer's one :(

Or maybe like they provide a SDK for the SPen they can include optional package to access extended drivers.

Courage SuperCurio !
[Galaxy Note GT-N7000 General] KInG GaME:
Ok guy found something ugly again!

when there is light my note takes perfect pictures but in darkness, it clips in video capturing and also in photos and it is present even after processing

i am getting a replacement today
[Galaxy Note GT-N7000 General] onetonnoodle:
what do you mean by 'after processing'?

Is the clipping still visible if the captured video is viewed on a PC/laptop?
[Galaxy Note GT-N7000 General] jdmwellington:
Thank you! Just wondering if it will also fix or lessen the green tint ? The only relief I have at the moment is to turn the brightness right up but this hurts my eyes!
[Galaxy Note GT-N7000 General] EarlZ:
What green tint are you talking about ?
[Galaxy Note GT-N7000 General] arsalan_qamar:
this thread is my last hope to love this note screen for videos ... videos with night scenes are .... :(
[Galaxy Note GT-N7000 General] kurayamix:
some question to supercurio.

I wonder, Is the program consume cpu usage too? I can't monitor it's cpu usage so I don't really know.

Well if the program use too much battery.

I'm better left the video blocky to save battery life lol.

thanks for great fix supercurio.
[Galaxy Note GT-N7000 General] :
@supercurio i have been reading through the thread and have held back and been patient but have to ask any update on this project?

Sent from my A500 ICS dream machine
[Galaxy Note GT-N7000 General] btyork:
Dude, he was in the thread with an update just 2 days ago...

Swyped from a white note.
[Galaxy Note GT-N7000 General] :
Sorry man I just check op for updates and didn't see anything I'll skim back m8 my bad....

Sent from my A500 ICS dream machine
[Galaxy Note GT-N7000 General] jkc120:
I'm hoping the Galaxy Nexus can be next :) Hopefully much of supercurio's excellent work will apply to the Nexus. If so, I'll have a paypal donation waiting :D
[Galaxy Note GT-N7000 General] supercurio:
Sorry I kind of lost motivation after my old crappy work for Nexus S had been kanged and re-labeled without credit on Galaxy Nexus.

So, for this Google device I'll do something amazing and different or nothing at all.
[Galaxy Note GT-N7000 General] EdgaBimbam:
btw when you are going to release for note? :) month or more? :) just wondering :)
[Galaxy Note GT-N7000 General] supercurio:
I started writing the new app, I suggest not asking for ETA as I have no idea myself when it will be finished.

As soon as possible as usual, but eh it takes time.

BTW I tweeted about it but: the real fix will only be available on ICS, as Samsung changed a few code lines in their driver that allows me to hack it live without kernel flashing.
[Galaxy Note GT-N7000 General] EdgaBimbam:
damn nice to hear :D you are like chuck norris ;D
[Galaxy Note GT-N7000 General] purple zebra:
Mine has a green tint as well. It is most noticeable on grey areas, such as the key board.

I've been using Screen Adjuster from the market to balance it out by adding more blue and red. After a few days of using it, go back and switch it off and you'll really see just how green the screen is, it is shocking.

The only catch with using screen adjuster to balance the colours is you lose some of that really nice deep dark black that the screen has.

With screen adjuster off, you can barely see where the bezel ends and the screen begins because the blacks are so dark... but you get the green tint.

With screen adjuster on, the blacks aren't as dark and you can see the difference between the bezel and the status bar for example, but the colours look more realistic.

So it's a compromise either way. But personally, I can't go back to the green tint after a few days without it, so the slightly reduced blacks are worth it.
[Galaxy Note GT-N7000 General] betoNL:
Yeah...GNote is the beast !! :eek: :D
[Galaxy Note GT-N7000 General] EarlZ:
Ive seen those green tints from few units its like in a shape of a backlight bleeding and im shocked some of my friends think its part of the keyboard theme or on the market background. Though i didnt insist for them to have it replaced but i told them its not normal.
[Galaxy Note GT-N7000 General] jdmwellington:
Thanks, I'm kind of just living with it also, that application helps but I find i still need to have the brightness up high for it to be effective.
[Galaxy Note GT-N7000 General] gattari:
In development section there is a new ics aosp rom by Imilka

I saw the last Pirates of the Caribbean and the problem of black seems to have disappeared with this rom.

Inviato dal mio GT-N7000 usando Tapatalk
[Galaxy Note GT-N7000 General] EarlZ:
Sounds interesting, can you post an actual photo of your screen displaying the gammatest.png ?
[Galaxy Note GT-N7000 General] KInG GaME:
Wow really could try some more vids and confirm!
[Galaxy Note GT-N7000 General] gattari:
Yes, the gamma test show clearly all the value.

Please, try the imilka rom to confirm ....

Use BS player to watch video, is the only video player that work well with this rom.

Inviato dal mio GT-N7000 usando Tapatalk
[Galaxy Note GT-N7000 General] EarlZ:
Take a photo with a camera.
[Galaxy Note GT-N7000 General] gattari:
I have only another phone with a cheap camera to shoot and the result is a very poor image.

Inviato dal mio GT-N7000 usando Tapatalk