ITunes Appears to Change Colors of Images Sent to the New iPad - henningliamel
The new iPad has received lashing of praise–including from Maine–for its improved Retina exhibit. But if your pictures look contrasting happening the new tablet, with brighter, punchier reds and leafy vegetable, that may not be solely because of improvements to the screen. It appears that iTunes actually shifts the colours of images, in some cases radically, when it moves pictures from a computer to the third-generation iPad.
To be clear, it's not news program that iTunes alters photos that IT syncs to an iPad. Images sent to the iPad 2 via an iTunes sync submit an "optimization" process, in which iTunes original downscales then resizes the double so that it takes dormy less space on the iPad. Merely with the new iPad, iTunes seems to be doing something more but resizing photos, whether purposely or by chance event.
Get a load at this image of a gymnast in a red leotard. The original, 3888-by-2592-pel image was 3.48MB, and I captured it as a JPEG with a Canon EOS-1D Mark III. Exploitation iTunes version 10.6.0.40 on Windows Aspect, I synced the original image to the recent iPad. That yielded a photo that maintained the original 3888-by-2592-pixel resolution, just took up only 1.05MB of distance. So far, thusly good: The process left me with a version of my image that was appropriate for the 2048-aside-1536-pixel Retina display, only didn't suck as more room connected the tablet.
The big surprise came when I emailed that second-stage image file from the new iPad, opened it on my desktop PC, and compared it to the original, side-by-side along my monitoring device. The "new" (ordinal-stage) image showed a significant color shift, with the reds amped significantly to the point of looking for oversaturated in comparison with the original JPEG when viewed on the same monitor. Whereas a version of the Lapplander picture transferred to and from an iPad 2 in the duplicate path showed a flimsy change (mostly a small loss of detail and sharpness), the interlingual rendition output from the unprecedented iPad was dramatically different.
This observation tracks with one of my first impressions on testing the new iPad: Colors were pure, though in our tests we didn't judge them to cost oversaturated.
To see whether iTunes power be the culprit, I tried emailing the original trope to the parvenu iPad (instead of syncing IT through iTunes) and then resending that image to myself. The solution: The image looked less saturated than the version that iTunes "optimized" for the iPad.
Because the image in interrogative sentence had a lot of red in it to begin with, the changes are especially frank. Simply my colleague Dave Johnson did whatsoever experimenting as recovered, and he noticed a shift in the reds and greens on a issue of his images, though not always to the same grade that I observed. In a pixel-level comparison at 5000 percentage exaggeration of an original image versus an simulacrum synced through iTunes, helium even found that in at least one instance the same pixel fix had two other colors.
So what's going happening Here? Everyone I've discussed the issue with has been puzzled. (I contacted Apple to invite a comment, but the company didn't respond.) IT is easy to suspect that JPEG concretion is at fault, since JPEG compression is lossy, meaning that you lose something every time you resave a JPEG file. But the imagination experts I've verbal to agree that JPEGs ordinarily lose detail and sharpness; they don't get brighter colors.
Another possibility is that iTunes is changing the color profile of the images it transfers. The metadata for the image doesn't report any changes, and all the same the gain in color saturation is very clear across different monitors and operating systems, including Windows and Macintosh OS X.
If iTunes indeed alters the colours of your photographs earlier depositing them on a new iPad, is that a trouble? That depends connected how you use the tablet and how picky you are about your pictures. If it makes your images look major along the iPad and that's your main concern, pregnant. Only it probably substance that the iPad is not an ideal place to keep backups of your images, especially if you'rhenium relying connected iTunes to transfer those images–as most of United States of America do. And if you work hard to make a point that your images look reasonable the manner you deprivation them to, you may not appreciate iTunes "optimizing" them for you–particularly since there appears to be no way to turn the process off.
Source: https://www.pcworld.com/article/469252/itunes_appears_to_change_colors_of_images_sent_to_the_new_ipad.html
Posted by: henningliamel.blogspot.com
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