Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > iPhone, iPod and iPad > iPad

Reply
 
Thread Tools Search this Thread Display Modes
Old Jun 13, 2011, 08:59 AM   #1
Big D 51
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
Why are some of my pictures blurry?

Once I transferred all of my pictures from iTunes onto my iPad, a lot of them are blurry. I don't have this issue on my iphone. The same goes with video. Why is video crystal clear on iphone but not on ipad?

__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 09:29 AM   #2
HazyCloud
macrumors 68030
 
HazyCloud's Avatar
 
Join Date: Jun 2010
Quote:
Originally Posted by Big D 51 View Post
Once I transferred all of my pictures from iTunes onto my iPad, a lot of them are blurry. I don't have this issue on my iphone. The same goes with video. Why is video crystal clear on iphone but not on ipad?

Better cameras on the iPhone. Plain and simple. I'm sure we'll see quite the update to the cameras on the iPad 3.
__________________
If you have a question about my post, quote me so I am notified and can easily reply to you.
HazyCloud is offline   0 Reply With Quote
Old Jun 13, 2011, 09:42 AM   #3
gngan
macrumors 68000
 
gngan's Avatar
 
Join Date: Jan 2009
Location: MacWorld
I had similar issue when i update my iphone 3GS to iOS4. It was a problem with iOS4.

This never happened on my iPad2. What about viewing it on your computer? Is it blurry?
__________________
2011 13''MBP i5 Dual HDD (128GB SSD+1TB HDD)+8gb RAM; iPhone 5S, iPod Nano 3rd & 6th gen; iPod Wheel; iPad Air 64gb; Airport Extreme/Express; Synology 4tb +WD 2tb; Canon 5D MKIII
gngan is offline   0 Reply With Quote
Old Jun 13, 2011, 09:52 AM   #4
mstrze
macrumors 68000
 
Join Date: Nov 2009
Send a message via AIM to mstrze
Fingerprints on the lens? Seems like the iPad would have a greater opportunity to get fingerprints on the camera lens due to more manipulation of the screen whereas the iPhone generally gets held in a way that keeps your fingers away from the camera.

It may be an OS issue, but it's always worth checking lens clarity first.
mstrze is offline   0 Reply With Quote
Old Jun 13, 2011, 10:00 AM   #5
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
Sorry if I wasn't clear. These are pictures transferred from my computer to iPad. Not taken with iPad.
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 10:03 AM   #6
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
Quote:
Originally Posted by gngan View Post
What about viewing it on your computer? Is it blurry?
Video yes. Pictures vary. Some are clear and a little blurry on pad. Some are blurry on computer, and super blurry on pad. I'm assuming it's a picture resolution problem.
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 10:05 AM   #7
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
iPad:

Click image for larger version

Name:	ImageUploadedByTapatalk1307977573.292699.jpg
Views:	66
Size:	66.6 KB
ID:	289376
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 10:06 AM   #8
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
iPhone:

Click image for larger version

Name:	ImageUploadedByTapatalk1307977595.376626.jpg
Views:	52
Size:	66.5 KB
ID:	289377
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 10:09 AM   #9
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
After coming to my computer to see what they look like, the actual picture is small in size. I guess the ipad is stretching the photo causing it to be blurry :-/ .
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote
Old Jun 13, 2011, 10:39 AM   #10
vrDrew
macrumors 65816
 
Join Date: Jan 2010
The problem most likely lies in the quality of the original image. If the photo was out-of-focus, the larger screen of the iPad is going to make that much more apparent than the tiny 3.5" screen on an iPhone. Resolution (ie. "retina display") has very little to do with this.

That said, there is ONE factor where resolution comes into play: Image Scaling.

In order to display a digital image, the device usually needs to resize it. In other words, a photo that was taken at 1600 x 1200 resolution (ie. "Good" but not "Best" on most consumer grade point and shoots) needs to be scaled so that it displays as 1024 pixels wide to display full screen on an iPad in landscape mode. Since 1024 is not a perfect factor of 1600 - the software "interpolates" which pixels to keep, which to throw away, and which to change. This can introduce "jagginess" or "blurriness" into an image that wasn't there originally. And it is certainly possible that the algorithm Apple uses for scaling does a better job scaling whatever image size you have BETTER on the iPhones 860 pixel wide screen.

Of course, if the original image was SMALLER than 1024 pixels wide (the iPad's resolution) - then the problem becomes worse. Instead of "throwing away" extra pixels to get the image down to 1024 - the algorithm has to "make them up" (ie. "Upsample") to fill the whole screen width.

This is an extremely over-simplified explanation. Image-scaling and interpolation alogrithms is a complex process, and one that is very difficult to quickly and understandably explain.
vrDrew is online now   2 Reply With Quote
Old Jun 13, 2011, 12:43 PM   #11
Big D 51
Thread Starter
macrumors 6502a
 
Big D 51's Avatar
 
Join Date: Jan 2011
Location: Mobile, AL
Quote:
Originally Posted by vrDrew View Post
The problem most likely lies in the quality of the original image. If the photo was out-of-focus, the larger screen of the iPad is going to make that much more apparent than the tiny 3.5" screen on an iPhone. Resolution (ie. "retina display") has very little to do with this.

That said, there is ONE factor where resolution comes into play: Image Scaling.

In order to display a digital image, the device usually needs to resize it. In other words, a photo that was taken at 1600 x 1200 resolution (ie. "Good" but not "Best" on most consumer grade point and shoots) needs to be scaled so that it displays as 1024 pixels wide to display full screen on an iPad in landscape mode. Since 1024 is not a perfect factor of 1600 - the software "interpolates" which pixels to keep, which to throw away, and which to change. This can introduce "jagginess" or "blurriness" into an image that wasn't there originally. And it is certainly possible that the algorithm Apple uses for scaling does a better job scaling whatever image size you have BETTER on the iPhones 860 pixel wide screen.

Of course, if the original image was SMALLER than 1024 pixels wide (the iPad's resolution) - then the problem becomes worse. Instead of "throwing away" extra pixels to get the image down to 1024 - the algorithm has to "make them up" (ie. "Upsample") to fill the whole screen width.

This is an extremely over-simplified explanation. Image-scaling and interpolation alogrithms is a complex process, and one that is very difficult to quickly and understandably explain.
Even though it was an extremely over-simplified explanation, it was an awesome. Thanks for the information.
__________________
Verizon iPhone 4g: 16 GB | 13" MBA: 2.13 GHz, 4 GB Ram, 256 GB Flash Storage | iPad 2: 16 GB | iPod Classic
Big D 51 is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iPad

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
Reader/Preview pictures blurry jrsx PowerPC Macs 9 Feb 15, 2014 08:28 PM
Blurry pictures Beachguy iPhone Tips, Help and Troubleshooting 4 Feb 10, 2014 01:40 PM
All Pictures coming out blurry. Need help! Nabooly Digital Photography 11 Dec 3, 2013 03:39 PM
Blurry pictures on a Retina mac, Help? celticfc482 MacBook Pro 6 Sep 27, 2013 02:49 PM
Ever notice pictures taken and viewed in camera app are blurry solideliquid iPhone 0 Feb 24, 2013 01:35 AM

Forum Jump

All times are GMT -5. The time now is 07:09 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC