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So if the Vibrant is only 800X480, why does a 720p movie look better than a 480 movie, it seems like the max is 480..... Also, if the Iphone 4 has 960x640, even though it looks amazing, way better than any android, it isnt actually playing a 720p video in full either is it? yes i realize how stupid that question seems to many of you. I couldnt figure out how to search google for the question. So enlighten me if you can. After you give me crap for not searching of course...thanks
DMaverick50 said:
So if the Vibrant is only 800X480, why does a 720p movie look better than a 480 movie, it seems like the max is 480..... Also, if the Iphone 4 has 960x640, even though it looks amazing, way better than any android, it isnt actually playing a 720p video in full either is it? yes i realize how stupid that question seems to many of you. I couldnt figure out how to search google for the question. So enlighten me if you can. After you give me crap for not searching of course...thanks
Click to expand...
Click to collapse
What is the resolution of the movie you are comparing it to? What is the format of the movie? How was it compressed? All of this and more affects the resolution of the video. If you have a 720p movie, it my be down-converted to 480 on playback, but because it was compressed at a higher quality (and maybe in a less lossy format), it's going to look better than a movie compressed in standard-definition (and more than likely at lower data rates).
because 720 is bigger than 480, the image size is bigger and usually has a higher bitrate too than a regular 480 video, so if 720 is played on anything smaller than a 720display, it gets resized (downsized) to fit the screen (without any quality loss), in this case a 480 screen. So all those pixels on the 720 video get pushed closer together thus showing more detail on the 480 screen.
a 480 video usually looks just fine on a 480 display, but since a 720 video is bigger and was meant for higher resolution screens, it has a higher bitrate which makes it store more detail than a 480 video, that's why it looks better
thanks for the replies, that makes perfect sense. if its 720 pixels i didnt understand how they could all be on a screen capable of only 480 but i guess compressing the video maintains the quality.
And to answer the questions, i just dl a movie, and drag and drop to my vibrant through doubletwist which takes care of the conversion. Although ive noticed none of the videos i download look nearly as good as default Avatar. I dl 1080/720 movies and they always have the very pronounced, large pixels when there is action and bright colors. But Avatar looks great so i guess maybe i could use something other than doubletwist and get a better quality conversion? Because the Vibrant is clearly capable of displaying fast action and huge varieties of colors like in Avatar
That said im ready for HTC/Moto/Samsung to start popping out some high res displays to rival the I4. The Vibrant has a nice screen but put it next to the damn I4 and it looks downright dull. I guess that tiny 3.5" screen next to the Vibrant's perfectly sized 4" display benefits the I4 visually as well...
DMaverick50 said:
thanks for the replies, that makes perfect sense. if its 720 pixels i didnt understand how they could all be on a screen capable of only 480 but i guess compressing the video maintains the quality.
And to answer the questions, i just dl a movie, and drag and drop to my vibrant through doubletwist which takes care of the conversion. Although ive noticed none of the videos i download look nearly as good as default Avatar. I dl 1080/720 movies and they always have the very pronounced, large pixels when there is action and bright colors. But Avatar looks great so i guess maybe i could use something other than doubletwist and get a better quality conversion? Because the Vibrant is clearly capable of displaying fast action and huge varieties of colors like in Avatar
That said im ready for HTC/Moto/Samsung to start popping out some high res displays to rival the I4. The Vibrant has a nice screen but put it next to the damn I4 and it looks downright dull. I guess that tiny 3.5" screen next to the Vibrant's perfectly sized 4" display benefits the I4 visually as well...
Click to expand...
Click to collapse
don't use doubletwist to put videos on your phone if they are already compatible with the vibrant, like a 720 video, vibrant can handle that..and all I explained was about the vibrant playing back the 720 video without conversion (just dragging and dropping the 720 video to the phone)
you have been playing the wrong movies or using the wrong convesion settings cause my movies look amazing, up to par and sometimes even better than the iphone 4. Have a look at one of my threads and download the video i uploaded (just drag and drop to phone don't use doubletwist or any other conversion method) and you will see what the vibrant screen is capable of.
thread: http://forum.xda-developers.com/showthread.php?t=780155
Thanks. Avatar looks great so I realize movies can look amazing, like you said I'm just doing something wrong. Ill check your link, thanks again
When recording in 1080p using the camera it is zoomed in. When using 720p you can see a lot more in the picture, where as 1080p seems to zoom in on the central object.
Now I was just wondering is it possible to mod this to make 1080p video record without being zoomed in (like how 720p does it) or is it impossible and it has to work that way ?
sorrowuk said:
When recording in 1080p using the camera it is zoomed in. When using 720p you can see a lot more in the picture, where as 1080p seems to zoom in on the central object.
Now I was just wondering is it possible to mod this to make 1080p video record without being zoomed in (like how 720p does it) or is it impossible and it has to work that way ?
Click to expand...
Click to collapse
Check out the video recording review in gsmarena.com
http://www.gsmarena.com/samsung_i9100_galaxy_s_ii-review-597p9.php
Here's a thread about it if you want more detail.
http://forum.xda-developers.com/showthread.php?t=959475
when the sensor chip (the camera) cannot crank for example 30FPS at 1080P resolution, "zooming" is a trick.
The sensor has less surface to scan with the zooming and can then crank out the said fps at said resolution.
The exynos chip however does "real" 1080p encoding and the image is really 1080p, but appears zoomed, and therefore contains slightly less details than if the sensor did not zoom (since parts of the field of view are not viewable)
bilboa1 said:
when the sensor chip (the camera) cannot crank for example 30FPS at 1080P resolution, "zooming" is a trick.
The sensor has less surface to scan with the zooming and can then crank out the said fps at said resolution.
The exynos chip however does "real" 1080p encoding and the image is really 1080p, but appears zoomed, and therefore contains slightly less details than if the sensor did not zoom (since parts of the field of view are not viewable)
Click to expand...
Click to collapse
So would it ever be possible to have 1080p video without 'zooming' by modding the firmware/ in a custom rom?
Or is it hardware limitation ?
sorrowuk said:
So would it ever be possible to have 1080p video without 'zooming' by modding the firmware/ in a custom rom?
Or is it hardware limitation ?
Click to expand...
Click to collapse
Physical Hardware limitation
Native res of sensor = 3264x2448
HD Video = 1920x1080
3264 / 1920 = 1.7
so the only way to record 1920 is to bin the .7 thus cutting out much of the screen.
now 720p HD only has a horizontal res of 1280 that goes into said sensor 2.55, so you only need to cut out the .55 (less than full hd) and then read alternate pixels and bin the rest.
Hope that makes sense
deanwray said:
Physical Hardware limitation
Native res of sensor = 3264x2448
HD Video = 1920x1080
3264 / 1920 = 1.7
so the only way to record 1920 is to bin the .7 thus cutting out much of the screen.
now 720p HD only has a horizontal res of 1280 that goes into said sensor 2.55, so you only need to cut out the .55 (less than full hd) and then read alternate pixels and bin the rest.
Hope that makes sense
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Click to collapse
I think that even binning the 0.7 factor should give a better result than the actual "zoomed in" effect. In the other hand whe should have the zoom function at 1080P resoultion too.
DrSlump76 said:
I think that even binning the 0.7 factor should give a better result than the actual "zoomed in" effect. In the other hand whe should have the zoom function at 1080P resoultion too.
Click to expand...
Click to collapse
Look at the calculations, you cant zoom in 1080 cause the sensor res aint enough!
deanwray said:
Look at the calculations, you cant zoom in 1080 cause the sensor res aint enough!
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Click to collapse
Humm... i'm still dubtfull about this limitation. Correct me if i'm wrong, but i think that the htc sensation is able to apply digital zoom @ 1080P, and it should have an 8Mpixel camera too, isn't it?
I can't post a link but if you searc for "HTC Sensation takes FULL HD 1080p videos " in youtube you will find a video taken with htc sensation with digital zoom!
I don't think that the galaxy s2 hardware is unable to do the same thiks that htc sensation does...
Oh, digital zoom is easy, but a bit pointless. So no point zooming if your source resolution drops, why not record native at the lower res and increase on pc? You will get better result that a phone attempting bilinear calculations .. So probably excluded cause of it being pointless.
Sent from my GT-I9100 using XDA Premium App
deanwray said:
Oh, digital zoom is easy, but a bit pointless. So no point zooming if your source resolution drops, why not record native at the lower res and increase on pc? You will get better result that a phone attempting bilinear calculations .. So probably excluded cause of it being pointless.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Hi
digital zoom during video recording is not applied by a simple bilinear calculation. Its quite the opposite:
No zoom -> use the whole sensor area and then "downsample" it to obtain the desired dimensions
Zoom->Sample the exact dimension from the center of the sensor.
Infact, if you watch two videos of the same scene taken with the sgs2 720P and then 1080P, you will notice that the 1080P gives a zoomed effect, becouse samsung only uses the rectangle on the center of the sensor to sample the frames, while with 720P uses the whole sensor area.
Power limitations? Unskilled Samsung's engineers? Who knows..
DrSlump76 said:
Hi
digital zoom during video recording is not applied by a simple bilinear calculation. Its quite the opposite:
No zoom -> use the whole sensor area and then "downsample" it to obtain the desired dimensions
Zoom->Sample the exact dimension from the center of the sensor.
Infact, if you watch two videos of the same scene taken with the sgs2 720P and then 1080P, you will notice that the 1080P give a zoomed effect, becouse samsung uses only the rectangle on the center of the sensor to sample the frames, while with 720P uses the whole sensor area.
Power limitations? Unskilled Samsung's engineers? Who knows..
Click to expand...
Click to collapse
I don't think that it's neither power limitations or unskilled samsung engineers. At 1080p, it uses most of the sensor, so zooming in will decrease the quality of the image to the point of being pointless at filming 1080p.
The reason why 720p uses the entire sensor area is because it does something called pixel binning. It uses the adjacent pixels to determine which color/info is more accurate (so a single pixel in the middle uses the ones around it to determine which color is closer to the actual source).
See here for more info:
http://www.svi.nl/PixelBinning
With pixel binning, you get less noise but at a cost of lower resolution. Therefore, they implemented zoom for 720p and the reason why 720p uses the entire sensor.
So the reason for why the 720p uses the entire sensor and 1080p only uses a section IS due to hardware limitations. 1080p needs at least a 12.4MP resolution for pixel binning.
As there is pixel binning, 720p will produce higher quality zooms than if 1080p could've zoomed using crop and bilinear enlargement (which will create pixelated images). That is why I assume they didn't include 1080p zoom - for quality purposes.
BTW - pixel binning is a technique also used by the iPhone 4.
DrSlump76 said:
Hi
digital zoom during video recording is not applied by a simple bilinear calculation. Its quite the opposite:
No zoom -> use the whole sensor area and then "downsample" it to obtain the desired dimensions
Zoom->Sample the exact dimension from the center of the sensor.
Infact, if you watch two videos of the same scene taken with the sgs2 720P and then 1080P, you will notice that the 1080P gives a zoomed effect, becouse samsung only uses the rectangle on the center of the sensor to sample the frames, while with 720P uses the whole sensor area.
Power limitations? Unskilled Samsung's engineers? Who knows..
Click to expand...
Click to collapse
Thats wrong! It's only correct if the sensor has the physical resolution that surpasses the target res by 2 exactly! Look at my previous post, I explain it a bit better. Your taking about sensor crop and pixel binning, not digital zoom.
Oh and bilinear is not simple, when you think of the amount of subpixel influence you have to create.
Neways, point is digital zoom creates pixels from thin air, well, programatically. So the detail is not present, hence why digital zoom is a consumer buzz than a valued feature.
Thanks for your replies guys. I would like to bring two more arguments for my theory:
1) The 720P recordings that we can find in the net shows a low quality zoom
2) In the other hand, there are some videos taken with the htc sensation that shows an almost perfect zoom @ 1080P
The question is:
if the htc product uses virtually the same sensor of the sgs2, how can they implement the zoom??
Here a video sample with digital zoom @1080P:
http://www.youtube.com/watch?v=VZDcpggOHRc&feature=list_related&playnext=1&list=SP9E838D931C71486D
Thanks!
DrSlump76 said:
Thanks for your replies guys. I would like to bring two more arguments for my theory:
1) The 720P recordings that we can find in the net shows a low quality zoom
2) In the other hand, there are some videos taken with the htc sensation that shows an almost perfect zoom @ 1080P
The question is:
if the htc product uses virtually the same sensor of the sgs2, how can they implement the zoom??
Thanks!
Click to expand...
Click to collapse
The answer is: Digital Zoom lol
Tis easy to see in the video that detail is lost, pixel get bigger then filtered etc. So Digital Zoom is a software feature, not hardware!
Also people seem to forget a few very important things regarding capture quality, the bitrate of the encoding profile in use. From what I see the sgs2 has a variable 10-14mbit profile active for full HD. Some of my pro cameras use 35-50mbit. So I'm going to look into how to mod this if i can since the hardware should be able to handle a higher rate, busy at the mo though.
at the end of the day though, tis a phone, if you want really good quality get a pro sumer hd cam, or a 5dmk2, or if you won the lottery get a Red Epic and shoot 5k res at 1000's fps. However none of those have mail/chat or phone capabilities
for 1080p are taken 1920x1080 pixels from the center of 8Mp sensor... (in this manner there is a "zoom effect" of about 2x and less view)
for other resolutions are applied pixel binning tecnhique (all pixel from sensor are used, and is scaling from 8mp to output video resolution)
take original pixels produces better quality (because are original pixels and not scaled), but less signal/noise ratio (but, because galaxys2 sensor is good, noise is low also if you take original pixel and don't use pixel binning that increases signal/noise ratio)..
also, use original pixels and don't use pixel binning, requires less power (in this manner you can have 1080p video at about 30fps and high bitrate)
deanwray said:
The answer is: Digital Zoom lol
Tis easy to see in the video that detail is lost, pixel get bigger then filtered etc. So Digital Zoom is a software feature, not hardware!
Also people seem to forget a few very important things regarding capture quality, the bitrate of the encoding profile in use. From what I see the sgs2 has a variable 10-14mbit profile active for full HD. Some of my pro cameras use 35-50mbit. So I'm going to look into how to mod this if i can since the hardware should be able to handle a higher rate, busy at the mo though.
Click to expand...
Click to collapse
Ok deanwray, you're perfectly right, but i would prefer to choose by myself if i wish to use the zoom or not, awared that if i use the digital zoom, the quality will be affected. In the other hand, in this way, the 1080P video would have better field of view (instead of the zoomed effect we have now) and less noise.
About the bitrate: maybe it's possible to raise it to 20Mbit, but i think that going above this limit is quite difficult. According to me, it's better to implement the zoom in 1080P and a better audio recording.
I was thinking: if they're unable to implement such features... how can we hope to obtain higher bitrates.. ?
DrSlump76 said:
Ok deanwray, you're perfectly right, but i would prefer to choose by myself if i wish to use the zoom or not, awared that if i use the digital zoom, the quality will be affected. In the other hand, in this way, the 1080P video would have better field of view (instead of the zoomed effect we have now) and less noise.
About the bitrate: maybe it's possible to raise it to 20Mbit, but i think that going above this limit is quite difficult. According to me, it's better to implement the zoom in 1080P and a better audio recording.
I was thinking: if they're unable to implement such features... how can we hope to obtain higher bitrates.. ?
Click to expand...
Click to collapse
If it's not firmware (camera firmware) limited, there are calls in the android sdk to set bitrate, I would probably look at writing a camera when I have time. Never looked at attempting to mod the default one. Have found something odd though, did a few tests, and there should be perceptual zoom due to sensor cropping at 720p, but compared against an 8mp photo, there aint! So thats a bit wierd to me
deanwray said:
If it's not firmware (camera firmware) limited, there are calls in the android sdk to set bitrate, I would probably look at writing a camera when I have time. Never looked at attempting to mod the default one. Have found something odd though, did a few tests, and there should be perceptual zoom due to sensor cropping at 720p, but compared against an 8mp photo, there aint! So thats a bit wierd to me
Click to expand...
Click to collapse
According to you, is it possible to modify/create a camera app that implements a digital zoom or better algorithms for image sampling?
What kind of access is possible to gain to the application processor's peripherals with android os?
There are some realtime image scaling algorithms that could be implemented via gpu or, better, via dsp if the exynos integrates a dsp onboard (like the TI's omap do).
I just sold my transformer prime infinity...and coming from that, im disappointed with the screen. How could a lower resolution screen on the prime look sharper than the one on the nexus?
Well I was just looking around here and I don't have a Nexus 10. I got a Galaxy Note 10.1 and from my experience the picture matters a lot.
I mean there are a lot of wallpaper sites with ultra HD and optimized wallpapers for retina display, but the same resolution is not always the same sharpness. some are crappy cropped or zoomed.
Use quickpic to set your background picture. The stock gallery app sometimes crops the pictures false.
And pictures with a resolution below the maximum resolution will always look a bit crappy. that means that when you are using a fullHD picture, which was nice for transformer prime, it can look less sharp on a display with higher resolution like nexus 10
I too come from Prime and there is no contest, this screen is sharper than Prime by miles.
How stuff looks will depend on what you are seeing.
If you have set regular wallpaper, it will look all blurry thanks to resolution. Even so called HD wallpapers will look blurry on this. You need to go search for wallpapers for MacBook Pro retina and use those on this tablet using quickpic. None of the apps from Android market have good wallpapers that are having native resolution of this tablet.
Text is sharp and crisp on this.
Most arcade games are not optimised for this screen and look terrible or blurry. That is not screen's fault.
Desktop web pages look nice full and crisp. So only real issue of lack of sharpness comes into picture when the content is not ready for screen. That includes apps, images and games.
I also come from Prime.
I wouldn't say the Prime screen looks sharper than the Nexus 10. Reading text on the N10, for example, the resolution is really amazing, very nice on the Nexus 10.
The colors and brightness and blacks is a different story. The Prime had those 3 much nicer than the Nexus 10. I loved playing Marble Blast on the Prime, the graphics looked amazingly vivid. On the Nexus 10 they appear as meh.
Its the prime infinity. Drastic difference. What a shame. Gonna put the nex up 4sale.
suzook said:
I just sold my transformer prime...and coming from that, im disappointed with the screen. How could a lower resolution screen on the prime look sharper than the one on the nexus?
Click to expand...
Click to collapse
It's mainly because a lot of apps and mobile sites and such aren't made for the resolution. It's made for a smaller resolution, so to make up for that, the apps, mobile sites, and whatever else are all upscaled to fit the 2560x1600 resolution. While upscaling allows you to view things bigger, it will also make everything else a slightly blurry. There are upscaling algorithms to make it look better, but basically it's impossible to make upscaled images look as good as a native 2560x1600 image.
A 720p 10" screen (Note 10.1) will show a 720p video the cleanest because the video outputs a ratio of exactly 1:1 pixels.
A 1080p 10" screen (TF prime) will show a 720p video a bit blurrier because the video outputs a ratio of 2.25:1 pixels.
A 1440p 10" screen (N10) will show a 720p video the blurriest because the video outputs a ratio of 4:1 pixels. (I know the N10 has a 1600p screen, it's just to make calculations slightly easier)
Now when using a 1080p video, a 720p screen will show no improvement because the screen can't output those extra pixels.
When using a 1080p screen, the screen will look sharper than that 720p screen because you have more information. Consider watching TV of a 10x10 resolution vs 1920x1080 resolution. The 1920x1080p resolution will look far better
Once again, the 1440p will look slightly blurry.
Now when you use a 1440p video, you can probably guess which screen will output that video the cleanest.
So basically, this high resolution thing is good mainly for texts as of right now since nothing is really optimized for a screen beyond 1080p.
Anyone who thinks its possible for a much lower resolution screen to be sharper is a fool. This screen is absolutely dazzling. Though content displayed is obviously going to have an affect.
And just to shove some numbers in your face:
N10 - 300.24 PPI (2560x1600 @ 10.055") 4,096,000 pixels (78% MORE)
Prime Infinity - 226.42 PPI (1920x1200 @ 10") 2,304,000 pixels
That's a huge difference.
404 ERROR said:
It's mainly because a lot of apps and mobile sites and such aren't made for the resolution. It's made for a smaller resolution, so to make up for that, the apps, mobile sites, and whatever else are all upscaled to fit the 2560x1600 resolution. While upscaling allows you to view things bigger, it will also make everything else a slightly blurry. There are upscaling algorithms to make it look better, but basically it's impossible to make upscaled images look as good as a native 2560x1600 image.
A 720p 10" screen (Note 10.1) will show a 720p video the cleanest because the video outputs a ratio of exactly 1:1 pixels.
A 1080p 10" screen (TF prime) will show a 720p video a bit blurrier because the video outputs a ratio of 2.25:1 pixels.
A 1440p 10" screen (N10) will show a 720p video the blurriest because the video outputs a ratio of 4:1 pixels. (I know the N10 has a 1600p screen, it's just to make calculations slightly easier)
Now when using a 1080p video, a 720p screen will show no improvement because the screen can't output those extra pixels.
When using a 1080p screen, the screen will look sharper than that 720p screen because you have more information. Consider watching TV of a 10x10 resolution vs 1920x1080 resolution. The 1920x1080p resolution will look far better
Once again, the 1440p will look slightly blurry.
Now when you use a 1440p video, you can probably guess which screen will output that video the cleanest.
So basically, this high resolution thing is good mainly for texts as of right now since nothing is really optimized for a screen beyond 1080p.
Click to expand...
Click to collapse
I actually have to disagree with you a little bit here. 720p video should look just as good on the Nexus 10 as it does on the Note 10.1. 1280x800 times 2 is 2560x1600. Because of that each pixel of a 720p video will take up exactly 4 pixels on the Nexus 10; however those 4 pixels on the N10 are the same area that would be a single pixel on the Note 10.1. This is a clean ratio. On the TF700 you got to 1920x1200 which is 1.5 times 1280x800. This is not a whole ratio and means that pixels of a 720p video will take up between 1 and 4 pixels on the TF700 display (determined by a fancy algorithm for scaling images).
The Nexus 10 playing 1080p video should have about the same blurriness as the TF700 playing 720p video.
Nitemare3219 said:
Anyone who thinks its possible for a much lower resolution screen to be sharper is a fool. This screen is absolutely dazzling. Though content displayed is obviously going to have an affect.
And just to shove some numbers in your face:
N10 - 300.24 PPI (2560x1600 @ 10.055") 4,096,000 pixels (78% MORE)
Prime Infinity - 226.42 PPI (1920x1200 @ 10") 2,304,000 pixels
That's a huge difference.
Click to expand...
Click to collapse
Did you have a prime to compare it to? Sorry, but text IS crisper on the prime. I see it with my 20/20 eyes.
suzook said:
Did you have a prime to compare it to? Sorry, but text IS crisper on the prime. I see it with my 20/20 eyes.
Click to expand...
Click to collapse
Lol as a former owner of both (returned Prime C1 for 700 a C6 then returned that, and I started the thread in Prime forums for users who Asus lost our first mailed GPS dongles)- your fooling yourself or you got a N10 with a bad screen
Sent from my SCH-I535 using XDA
suzook said:
Did you have a prime to compare it to? Sorry, but text IS crisper on the prime. I see it with my 20/20 eyes.
Click to expand...
Click to collapse
You can most likely blame that on googles new font rendering in 4.2. They turned down the font hinting a lot. It would be nice if it was configureable like in Linux. It the same way on the galaxy nexus and nexus 7 in 4.2.
Sent from my Nexus 10 using xda premium
The problem with this screen is calibration and black levels.
Colors are extremely washed, red is a poor red, same with blue. This totally kills the screen. If you compare this with ipad screen, you will cry. Not because of viewing angles, not because of brightness, because of colours. Google was really smart when they decided not to calibrate their screens, same with nexus 4, while other OEMs take care of this thing deeply.
And black, despite numbers of the reviews, its quite poor, mostly because every single unit has light bleed (some with a hard mess, others this problem is smaller)
As a result, a top screen with such a poor implementation. This could be best screen in an tablet ever, and now it is a mediocre one, with many pixels, but nothing else. And it's a ****ing software issue, thats so sad.
Straf said:
And it's a ****ing software issue, thats so sad.
Click to expand...
Click to collapse
light bleed is not a software issue
Techie2012 said:
light bleed is not a software issue
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Click to collapse
Yep, meant the calibration thing, it's about software. Black thing is because a bad manufacturing process, probably because of low price tag., or crappy manufacturers.
blackhand1001 said:
You can most likely blame that on googles new font rendering in 4.2. They turned down the font hinting a lot. It would be nice if it was configureable like in Linux. It the same way on the galaxy nexus and nexus 7 in 4.2.
Sent from my Nexus 10 using xda premium
Click to expand...
Click to collapse
Wow...that blows. Maybe we need a 4.1 ROM??
I saw light bleed as soon as I turned my N10, but that's not the reason I just called to return it -- it was the uneven brightness. The top 1/2 inch of the screen is noticeably darker than the rest of it -- not visible when watching a movie or playing games, but very distracting when surfing and reading books, especially in portrait mode.
Since I haven't seen anyone else complain about this issue, I'm hopeful the replacement will be better.
Yep, I completely agree with one of the previous posters, this is definetly a black level issue. I put the iPad with a Retina Display right against a Nexus 10 both playing the same 1080i MKV. The iPad clearly won.
I still like the Nexus 10 a lot and I find it very comfortable to use because of how thin it is and how light it is, but to improve the product I think Google missed it some here. They could lowered the resolution considerably (1920 x 1080 is more than fine), improved on black level, and used the same processor. The lower resolution would have allowed that processor to scream since it wouldn't have been as taxed to interpolate so many pixels.
I don't know if it is a software issue or not, but if it is I really hope Google releases a fix. If there was a way to adjust Gamma or Contrast it might help considerably.
suzook said:
Did you have a prime to compare it to? Sorry, but text IS crisper on the prime. I see it with my 20/20 eyes.
Click to expand...
Click to collapse
There's no way on earth text (or other computer generated content like the UI and icons) will look better on a 147PPI display (Prime) vs. 224PPI (TF700) or 300PPI (N10). The reason is as 404 Error did a great job of explaining is that text is a 1:1 match pixel wise; the more pixels the sharper the image. Photos and videos display even the clearest content over multiple pixels so the advantage of a higher PPI becomes less pronounced. And the human eye (even yours) can't resolve sharpness over 229PPI beyond 15". So, your 20/20 eyes are decieving you. The N10 has less contrast and isn't as bright as older displays so that might be what you're reacting to.
Straf said:
This could be best screen in an tablet ever, and now it is a mediocre one,
Click to expand...
Click to collapse
well lets hope this guy will change that.
http://www.youtube.com/watch?v=lJ9H-TtObBY
tacitust said:
I saw light bleed as soon as I turned my N10, but that's not the reason I just called to return it -- it was the uneven brightness. The top 1/2 inch of the screen is noticeably darker than the rest of it -- not visible when watching a movie or playing games, but very distracting when surfing and reading books, especially in portrait mode.
Since I haven't seen anyone else complain about this issue, I'm hopeful the replacement will be better.
Click to expand...
Click to collapse
Mine has this problem and so do at least a few others. See http://forum.xda-developers.com/showthread.php?t=2007676
I'm still debating if it annoys me enough to justify an exchange.
Hi, is there anyway in which we can change the screen resolution to 720p while we game?
Like it can be manual, before going into a gamez turned to 720p and back to 1080p when done.
Phone struggles in 1080p rendering on heavier titles. I'm hoping for a non-root method
I ve tried wm size command but it no longer work since it is Android 12.
KukusKufy said:
I ve tried wm size command but it no longer work since it is Android 12.
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Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
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I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
KukusKufy said:
I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
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I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
ov_darkness said:
I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
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There IS it, I ve paid for it, and I WANT it.
And experience will be different for me when viewing large size image in 1:1 scale.
It is just like refresh rate, since there r people cannot get the difference between 120hz and 60hz(or lower). But you cannot just disable higher refresh rate FOREVER just because there r some people cannot distingurish.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
Click to expand...
Click to collapse
It's also to remove unnecessary downscale/upscale when watching a 4k movie. Since most app view the screen as a QHD one, VLC for example, will render a 4k video as a QHD one by downscaling it, then the phone will upscale it back to 4K.
Sure you will probably not see a lot of difference with native 4k as the upscaling technology from Sony is pretty good and you still have the 4K screen resolution giving extra sharpness.
Also, what some people seems to forget, is that the image displayed will always be 4K on this screen, a FHD image will be upscaled to 4K by the phone, and the higher pixel density make it far better than the same FHD content on a QHD screen especially for AMOLED screen that are somewhat blurry on the edge due to the subpixels arrangement.
This being said, you can put the screen in native resolution all the time, just going in the developper option and setting the screen minimal width to 1644pixels to match the 1644*3840 pixel resolution. Doing this, VLC that I tried perfectly render a movie in 4K, but your overall UI is ****ed up and you can barely use the phone. That's not what is wanted. Sony is just boring us for 4 generation with its 4k white list apps. I don't even know what is the recommanded app to watch their 4k HDR spiderman extract.
It's stated that the screen only runs at 4k in certain apps and scenarios, Theres no option to change that.
More accurately: The phone only render graphic at 4k in certain apps and scenarios*
The screen always runs at 4K since it's hardware and number of pixels can't physically be changed. The phone upscale every content to 4K all the time but render some whitelisted app directely in 4K. Still better than proper 2K as the pixels are smaller, but also mean your 4K videos on VLC will be downscaled to 2K by VLC then upscaled back to 4K by the phone, only because Sony didn't whitelist VLC that is perfectly able to run native 4K.
I almost have the same question, but instead of 4K I want to set a global 2K resolution.
4K is way too overkill, but 2K is the best middle ground between display clarity and battery life.
that is what you basically have, 99% of the time your phone won't render 4k. Doing that for all scenarios in which things are rendered in 4k would make absolutely zero sense because then they would need to be upscaled again to fit the 4k reselution