yashsingh1/xdaforums huggingface dataset:
[Galaxy Note GT-N7000 General] the.exver:
I have noticed that if I put Note on charging when device is off, the battery picture that shows is rendered good, battery reflection has correct gradient, after few seconds it goes bad, and than it shows battery status with that bad rendering... Could it be that driver for the screen is in bootloader or something, is there any stock ROM with bootloader included to be flashed via Odin so I can try to reflash it... I'm just gessing, don't get mad if this is nonsence :rolleyes:
[Galaxy Note GT-N7000 General] jdmwellington:
I was just after confirmation that the screen tuning r and d could resolve this for the galaxy note
[Galaxy Note GT-N7000 General] EarlZ:
I think that feature will be there if his full program gets done, I was initially thinking about the green tinit when viewed in an angle.
[Galaxy Note GT-N7000 General] Inuit:
@supercurio: ist there any hope that your program will be released at all?

There are so many variations of Note screens with different gamma settings that it seem nearly impossible for me to find a solution for everyone?

I followed your twitter and there was no more twittering about a programm for the Note. Is this programm still under developemend?

Don´t get me wrong. I love your work and i don´t want an ETA but a little bit more informations would be nice

Thank you and greetings

Inuit
[Galaxy Note GT-N7000 General] supercurio:
@Inuit of course, why would I work on stuff to not release it?

I detailed tasks I have to complete before.

But yes, reaching the goal here is not easy.
[Galaxy Note GT-N7000 General] darkinners:
Thanks man, got it! instantly notice it does improve the banding problem! in the calculator app, the upper side banding is almost gone, Thanks dev
[Galaxy Note GT-N7000 General] EarlZ:
I dont want to sound demanding but we would love to hear updates on the current progress even if its too geeky, just something to keep us at the edge of our seats :D
[Galaxy Note GT-N7000 General] Inuit:
@supercurio:

wow, that was a fast answer. Thank you very much for your clarification.

Greetings

Inuit
[Galaxy Note GT-N7000 General] martcerv:
Its good to get updates but every minute wasted by the devs giving non major status updates takes away dev time, like always when its done its done and i dont mind waiting.

Im sure if supercurio has anything of significance to post he will but otherwise just let him do his thing :)
[Galaxy Note GT-N7000 General] supercurio:
Yes I share my development experience on twitter.

ATM working on a BusyBox installer (Free & Open Source) because I'm not satisfied by the quality of current solutions.
[Galaxy Note GT-N7000 General] noteworthy:
Supercurio,do you know what exactly is the problem with the GNote and the GNexus display?

It seems like most displays are affected to some extent or another.A proper solution if one can be found will be appreciated by many users.I for one will pay for it if the price is reasonable.

It really is a shame as the GNote display is wonderful in every other aspect.
[Galaxy Note GT-N7000 General] supercurio:
Problems not problem.

Yes I know all about them and suggest to read my previous posts here, you'll find descriptions and explanations.
[Galaxy Note GT-N7000 General] GGSunny12:
Do i need any specific custom kernel rom or i can use this on any custom rom/kernel?
[Galaxy Note GT-N7000 General] LordManhattan:
You can use it on any ROM/kernel.
[Galaxy Note GT-N7000 General] yees-no:
cheeeeeers man

when it will be ready ?:D
[Galaxy Note GT-N7000 General] SiggiJarl:
I have tried this app (Voodoo Screen Tuning R&D dev snapshot 49) on my Note and for me, setting the phone to the 'Native' profile in the app has _exactly_ the same effect as setting the screen mode to 'Movie' in the phones built in display settings.

it reduces the gamma problem slightly, but the problem is still there

edit: I would love to see all the features you provided for the Galaxy S seen here hxxp://project-voodoo.org/color

Thanks for all your hard work
[Galaxy Note GT-N7000 General] Hirudin:
So, I have gotten tired of my Note's crappy-ass black rendering. I ordered another Note and it came this morning. The absolute first thing I did (besides things required) was go to http://www.lagom.nl/lcd-test/black.php and take a look at some black squares. To my delight, they were all visible!

Then it occurred to me: maybe it could be the browser or something. I went to my original Note (which had just been turned on) and looked at the same image using the default browser. Guess what? The image worked there as well!

So, I long-tapped on the image and saved it. I went and looked at it in the Gallery and it was back to looking like crap. I switched back to the browser and, suddenly, the image looked like crap in there too.

I don't remember the exact steps I took (perhaps I restarted the phone again) but one way or another I got the image loaded on the browser again and took a screenshot using the S-Pen. I've attached the screenshot. As you can see (download the RAR and zoom in), it appears to be using some kind of dithering to make the square appear darker than the screen is capable of displaying (I've yet to confirm this with a magnifying glass or anything). Although this isn't an ideal fix, I'd be happy with it if it were actually implemented system-wide. Also, I think I should note that, although all the squares were visible, they weren't nearly as dark as they should be.

Personally, this suggests that Samsung knows about the black crush issue and created a workaround. The firmware on my newer phone is from 10/11 (I think).

[edit]I see it converted the PNG into a JPG so I uploaded the file in a RAR. I also am uploading a blown-up (400%) and modified (I made it much brighter and increased the contrast) crop of square #1, for those of you who don't feel like downloading the RAR. I want to stress, the crop of square #1 is modified quite a bit but the full captured PNG in the RAR hasn't been touched.[/edit]
[Galaxy Note GT-N7000 General] EarlZ:
Let samsung know send them an email, I've sent them an email and the steps required to replicate the issue. I have no idea if they are going to fix it. But suffice to say that supercurio is in touch with samsung they already know this.
[Galaxy Note GT-N7000 General] EarlZ:
Posted by another user from a local forum, gamma curve is actually great with color information only dropping off at 1 to 0 and its not a sharp drop as well, so a screen lottery can have this issue fixed.

Using the voodoo tuning makes the results worse on his end.

This might be of interest to anyone.
[Galaxy Note GT-N7000 General] Ziplomatic:
C'mon! It should'nt be like "einky pinky ponky.." with getting just about the right screen from Samsung :p

I would be the happiest if I could see it till '1' without the help of any app!

With the help of Supercurio's voodoo tuning app I can see it down till '2' or else without it sigh..'4' if I remember :o
[Galaxy Note GT-N7000 General] EarlZ:
Its a screen lottery so yeah...
[Galaxy Note GT-N7000 General] flipee:
my gamma test on the stock browser looks horrible compared to the stock image viewer.
[Galaxy Note GT-N7000 General] supercurio:
Movie and Voodoo Native modes differ vastly in terms of color reproduction.
[Galaxy Note GT-N7000 General] supercurio:
Galaxy Note Browser is 16bit with dithering, Gallery is 24bit.
[Galaxy Note GT-N7000 General] EarlZ:
Wait the gallery is in 24bit? People always said it was in 16bit hence we see massive color banding on the gallery app compared to QuickPic in 24bit mode.

So 16bit dithering produces better images compared to 24bit?
[Galaxy Note GT-N7000 General] supercurio:
Gallery is 16 or 24bit depending on manufacturer choices. But on each high-end Android Samsung device I saw its 24bit.
[Galaxy Note GT-N7000 General] EarlZ:
Ok given that the Galaxy Note is a 'highend device' the gallery should be in 24bit, so why are we getting what appears to be a very bad result on the gallery as compared to the web browser?
[Galaxy Note GT-N7000 General] supercurio:
The answer is very simple:

Be sure you view images at 100%

I applied a curve with Gimp on the original file to make it easier to view:

Here is what Browser dithering does:

And here is how looks the curve I used in this example:

Conclusion: Browser rendering cannot be trusted for measurements or analysis.
[Galaxy Note GT-N7000 General] EarlZ:
Thanks for the explanation, I've never been able to figure out how to let the browser show the image in full screen mode. Next though is I would like to know on how far are you at with the development on the black clipping and color banding on video playback?
[Galaxy Note GT-N7000 General] SiggiJarl:
you are right, the colors may be different, I was only referring to the gamma-issue (I don't really care so much about accurate color reproduction, but I do care a great lot about blacks coming off as blotchy greys)
[Galaxy Note GT-N7000 General] pachi72:
I think its software....I went to youtube on Opera Browser and it doesn't have that problem playing movies....
[Galaxy Note GT-N7000 General] noteworthy:
That's because youtube videos played through browsers are lower quality in that the blacks are brighter so you don't see the artifacts.

Youtube videos played through the youtube app has darker blacks so you will notice the blotchiness more.If you don't believe me,play the Moderat rusty nails video through a browser and then the youtube app.You will see the black background is pitch black on the app but grey on the browser.

---------- Post added at 02:26 PM ---------- Previous post was at 02:23 PM ----------

And you need to do this in a dark room otherwise you can't see the difference.
[Galaxy Note GT-N7000 General] Maroon Mushroom:
supercurio I'm going to spend my 8 thanks a day on all posts you've ever made.

You are probably my favorite dev and you've made multiple devices that I've owned so much better.

Just wanted to say thanks for your hard work.
[Galaxy Note GT-N7000 General] love_4ever1810:
How long more do I have to wait? Losing my patience.
[Galaxy Note GT-N7000 General] dzontra11:
..me too..no news. .no nothing.
[Galaxy Note GT-N7000 General] EarlZ:
Samsung sold you guys a half done / broken device, why are you demanding a fix a from supercurio. Take it up to samsung or get your money back.
[Galaxy Note GT-N7000 General] whmcal:
For what it's worth, I agree.
[Galaxy Note GT-N7000 General] awesome-member:
LOOSING your patience....... , what are you going on about? . you'll have to wait for as long as it takes like the rest of us. Unless you can do something about it.
[Galaxy Note GT-N7000 General] SAlmighty:
Exactly!

And thats the comment of the day. Superb! :D

and Why the hell do we have to root our phones, screw our devices up, when samsung should be taking care of this sh!t, not supercurio.

I keep coming back to this thread hoping for a fix, but I'm sure the OP has other commitments as well, which is well understood.

supercurio is a human being, he will release a fix when he is ready!

in the meantime, report your damn issues to Samsung directly!
[Galaxy Note GT-N7000 General] noteworthy:
Well I am not hopeful ICS will fix the black clipping so it's up to supercurio.Any delays I am sure is not because of lack of trying on his behalf.A complete screen tuning app for AMOLED displays may be a hard project and I would rather he take his time to come up with a good one rather than a half baked one.

Until then it's not like the GNote is a complete piece of junk.It's still a great phone 99% of the time.
[Galaxy Note GT-N7000 General] love_4ever1810:
Because it doesnt work that way in my country.
[Galaxy Note GT-N7000 General] QuadLight:
iam allready post this 4weeks ago. I think Supercurio not working on fix. Now he have new toys: p6800 tab7.7 & galaxy nexus.
[Galaxy Note GT-N7000 General] sirrdeezy:
dam this is crazy
[Galaxy Note GT-N7000 General] honf:
Oh and what are you going to do when you finally snap? Delete your forum account? :)
[Galaxy Note GT-N7000 General] TML1504:
one of the last posts from supercurio in the T989 forum, I think this is interesting for us as well. Also bethink that supercurio "lives" from his projects...
[Galaxy Note GT-N7000 General] EarlZ:
His initial post here already hints that its not that easy to make a fix for everyone. Though Im wondering why the others are expecting a fix from him when Samsung CAN actually fix this issue by and LCD replacement, I already saw a friend's screen that has no clipping what so ever his gamma curve response on the new screen is similar to the other SAMOLED devices. He is now a happy camper. This is not the actual picture on this screen but it is similar.

Whats interesting in supercurio's fix is the added improvement, so guys please give him more time and let samsung fix your phone, its your own fault for not pressing the issue to them and just accepting it as normal.
[Galaxy Note GT-N7000 General] betoNL:
Well, I am no developer and all my conclusions are based on a "hunch" so bare with me...

I dont think the GNote will reach the same level of popularity that devices such as the sgs1 and sgs2 did... I think that even the GNexus is already more popular..

Meaning that many top/recognized developers won't hang aroung on the GNote forum as much as they would do in other forums..IMO

Off course many improvements achieved in general, can also be ported to the GNote, but based on my "hunch" this is is a unique device with a larger HD screen AND S-Pen (pentile?) support and would need some more " dedicated" attention :rolleyes:

Gladly for me, I am one of those "lucky" GNote owners with a good screen so for me, the GNote with or without the magic of some talented developers is a KEEPER!

And many friends of mine got impressed and bought the Note..Gladly for them, the Dutch and German Notes they bought are as good as mine...so far

.
[Galaxy Note GT-N7000 General] pachi72:
The Note sold over a million units.. That's probably more than the Galaxy Nexus..
[Galaxy Note GT-N7000 General] dawabz94:
Was abt to post something similar

The GNote sells very well and there is a bunch of devs supporting this baby

:-)
[Galaxy Note GT-N7000 General] betoNL:
Don't get me wrong....I also want this baby monster getting as popular as it can.

It's my primary device and I wont be spending money on another expensive gadget for a loooooonng time........:)
[Galaxy Note GT-N7000 General] mcreego:
Hi I just bought this phone and the screen shows very bad clipping and bad black colour rendering.

I don't think that i want to return this phone to Samsung to have my screen replaced because it is a Russion roulette.

Before Gnote I had 5 Sgs2 and 3Sgs and all the screen were different, some bluish some yellowish, some with bad gamme and other with a good one.

On the first Galaxy voodoo color solved my screen problems, I hope that Supercurio will release a new app that will solve also my Gnote screen issues.

Keep my fingers crossed:D
[Galaxy Note GT-N7000 General] pachi72:
You talking about color banding?
[Galaxy Note GT-N7000 General] sibere:
it goes down to 3 in video mode and to 1 when using screen adjust app.
[Galaxy Note GT-N7000 General] William Haven:
Awesome news :)
[Galaxy Note GT-N7000 General] supercurio:
Ok I skipped the first step because I was too impatient to get my hands dirty, and with my training I kind of have a colorimeter integrated in my brain ^^. At least for obvious stuff like here.

Measurement are still in my TODO.

I got quickly results by disabling mDNIe support altogether, which not really disable mDNIe but preserves the mDNIe settings set by the bootloader at the very first hardware initialization.

As some saw in battery mode the display looks okay then suddenly shadow problem appear. What you see in the first place are the bootloader settings.

Bootloader mDNIe settings don't clip black (you see the number 1 clearly in the test image named "gamma test" − should be named black clipping test instead)

You can see the number 1 a bit too clearly BTW. It should be a lot darker.

Also, bootloader settings apply a stupid high color saturation boost which make the end result wrong and exaggerated.

Another side effect of disabling mDNIe support is that image artifacts appear: lines, at the right end of UI element which indicates this setup is just broken.

Also I would prevent any kind of future rendering customization why its far too flawed to be distributed as-is.

I talk about that here but strongly hope nobody will try to replicate that and distribute it. Disabling the whole thing is not the solution, creating several other ones instead.

After that I started working on how to write but also read mDNIe settings recorded in the chip for each address.

By analyzing and hacking the mDNIe kernel driver, I can now identify each write operation, which are directly in a memory zone mapped to the chip itself. There's no bus or anything, just calls to

__raw_writel(val, (s3c_mdnie_base + addr))

I'm not sure yet if it will be an asset or a problem. But it means re-creating an alternative mDNIe driver should be possible if required.

Note that there are security considerations in play. Sending wrong values/addresses here can crash the hardware severely and I made the experience of it.

At this very moment the read values I get need some processing/bit-shifting or masking. Not sure yet..... ahh ha and I just found out by casting to (u16). − writing while flashing hacked kernels, hence the strange form of this message.

Anyway once I'll find out which neutral mDNIe settings are required and completed register/values reverse-engineering for this new controller I'll bundle it as presets in my screen tuning app.

And all this is step 1. mDNIe settings is one thing. The whole Super AMOLED HD color response needs to be fixed as well.

Why? Because even with mDNIe disabled, the gamma curve is wrong: especially shadows which are not how they are supposed to be.

I can recognize here a trend initiated by Google Nexus S driver trying to emulate sRGB black point compensation which just doesn't work and provides dull results on Super AMOLED screens.

As usual, stay tuned and be patient.
[Galaxy Note GT-N7000 General] gattari:
Supercurio do you think the problem is software related?

How many time to have your apps in our note?

Thanks

Inviato dal mio GT-N7000 usando Tapatalk
[Galaxy Note GT-N7000 General] supercurio:
I'm working here on color rendering only, not lines/blobs/etc (those are hardware limitations of Samsung current Super AMOLED technology).

How the roots of color rendering are managed on an AMOLED screen is entirely different than what it is on a LCD one.

Super AMOLED complete response can be customized (not corrected) in the driver, by sending commands to the hardware itself.

By default its empty and it has to be set.

On our devices, there are several layers, in this order.

- Frame Buffer:

Image itself. Game, video, UI elements, pictures, a blend of all this...

- mDNIe image processing:

Affecting the image. You can see it as real-time Photoshop effects.

- AMOLED controller:

Calculate pentile matrix sub-pixels then transforming image into voltages in order to lighten up Reg, Green and Blue organic leds.

- AMOLEDs.

Many of them ;)

Where I work here is on mDNIe image processing configuration. Next step is to work on the AMOLED controller configuration.

Its hard to say if it's hardware or software. It really is a mix between both. What I do is a bit like adjusting knobs but current techs made those knobs digital (register addresses & values) instead. But it has the same physical effect in the end.

And it's all on dedicated hardware, not the CPU of course.

ETA requests are not welcome.
[Galaxy Note GT-N7000 General] EarlZ:
For a company that prides it self in display tech and even the phone's main feature is all about display It kinda makes me wonder why the current state of the color rendering is like this.

For the initial boot up when charging I see a very minimal clipping then a sudden change about 1-2 seconds after including the change from a greenish battery container icon to a grey one.
[Galaxy Note GT-N7000 General] supercurio:
Yes, not happy. I got it. Now please move on :P this is not a ranting thread, thanks!
[Galaxy Note GT-N7000 General] EarlZ:
Sorry if I sounded like I was ranting but I just wanted to know some insight as to why Samsung decide to do the color rendering this way. Feel free to ignore this post if it still sounds like ranting :)
[Galaxy Note GT-N7000 General] sibere:
Samsung is boosting colors and contrast to attract people from the distance in shops. They just see deep blacks and ultra-dynamic colors and think about what a superb display.

Samsung have the technology and the knowledge to sell phones with well calibrated colors and right gamma curves. They just don't do it because they think that potential buyers wanna have flashy colors and deep blacks, no real life rendering. This is for TVs.

@Supercurio: What about the mDNIe files in /etc ?
[Galaxy Note GT-N7000 General] supercurio:
Sorry to disagree, but they did the opposite on Galaxy Note.

By working on this, I would say the opposite. I can notice there are several teams, with different knowledge/skills levels and in case of the Note what they tried to do is not "boosting" colors to get something flashy, as they tried to stick to the sRGB response curve by altering both mDNIe and AMOLED curves.

Thing is something went wrong in the process especially on the mDNIe aspect, and without being offensive I would say by a lack of culture and maybe skills as well.

However the hardware guys did a good job, the AMOLED calibration has sound bases (even if there's still big potential for improvement)
[Galaxy Note GT-N7000 General] supercurio:
Ok I managed to read bootloader mDNIe values from memory.

Preparing presets based on it (or improved)
[Galaxy Note GT-N7000 General] naimmkassim:
Does this thread were suppose to be in developers section? Any reason why been put in general section?
[Galaxy Note GT-N7000 General] supercurio:
Your question makes sense.

I put it in general question because at first it was not development.

And limitations prevents new users to post in development, which is annoying to get sometimes valuable feedback.
[Galaxy Note GT-N7000 General] naimmkassim:
Oh I see..yes, like you had said if able to put in developers section you would have a more valuable feedback :)

Anyway, sorry since im not a developers & could not give a valuable feedback ;P
[Galaxy Note GT-N7000 General] sibere:
You may disagree, but even in standard mode, the DeltaE is still high, even though it's not as high as it is on the SGSII. My Note is always in video mode to get the lowest possible DeltaE (mesured at 5 in this mode). See lesnumeriques for details (french only, sorry for the non french speakers).

Note color calibration is much better than SGSII or even iPhone4S but it's still far from what they could have achieved right from the start. And I'm not even talking about the gamma curve with those hyper boosted low levels, ending up with this clipping effect.

And there is still this greenish hue which is bugging me. Whites look anything but white...

Another topic is the banding in colors. IMHO it's also a software issue as the Note's screen is supposedly capable of 24bits rendering.

Am I also wrong here?

But anyway, I'm confident in your work to bring the best to our toys :)

Thanks for your great job!
[Galaxy Note GT-N7000 General] supercurio:
Là où je suis pas tout à fait d'accord, enfin je vais continuer en anglais − where I disagree is when you say the purportedly boosted image parameters to make the screen look flashy.

I know some people and magazines are repeating this over and over since ages but it doesn't make it true.

− This analysis was valid for the first Galaxy S but not on the Galaxy Note ;)

About your deltaE measurement, which software are you using? HCFR?

Did you check out my app https://market.android.com/details?id=org.projectvoodoo.screentestpatterns ?