- 10 December 2013 at 8:21 pm #23557David R.Participant
since the issue pops up regularly, I would like to try to explain it:
Your camera (e.g. an iPhone) stores image data always the same, regardless, whether it’s taken upside down, rotated or regular. The sensor tells the device, that it’s rotated and this information is attached to the image as meta data. If the software reading this image does not regard this piece of information, the image will be displayed wrongly. Website software often generates thumbnails of images in order to reduce file size and thus loading time and may not rotate the image accordingly or restore the information to the thumbnail file.
But this is not the only metadata stored by the camera. Besides camera maker and model and shot conditions (aperture, focal length, shutter speed, etc.) in case of most modern smartphones GPS data may be stored in the image file. I don’t want to frighten anyone, and since this is a more ore less closed community it is probably no issue, but I wanted you to be aware that images can contain much more information than the actual image data.
What you can do is to use a software to remove those pieces of information. I’m more of a technical guy, so I use rather arcane means of fiddling with this, but maybe someone can recommend free software for PC and Mac that can help here.
I hope this is of interest to some of you.
from Germany10 December 2013 at 8:54 pm #23564KenParticipant
Thanks David, great info buddy10 December 2013 at 9:06 pm #23567Dave RiendeauParticipant
There are free image cloud based editing programs on the internet. I’ve used this one http://pixlr.com but I’m not sure about being able to edit metadata. I use aperture for my photography but it’s overkill for posting project pictures and takes more time.
Good info David, I found myself standing on my head trying to look at a picture the other day 🙂
-Canada11 December 2013 at 1:38 pm #23631David R.Participant
For Windows I would give these two tools a try:
Both are available in English and both appear to support Metadata-Modification (see plugins for irfanview) as well as loads of other features like resizing etc. I used those years ago and they apparently keep them up to date, so you should get a solid piece of software.
from Germany11 December 2013 at 2:11 pm #2363319 December 2013 at 2:33 pm #24158Bob BillsonParticipant
+1 for IrfanView . It understands quite a number of image formats. You can manipulate images, adjust colors, add captions and a lot more. Be sure to get the plugins as well. Best part is the “price”. It is free. (Think Free speech and free beer.) 🙂
One caveat. Some download sites attempt to install yet another annoying toolbar. Just say no. 🙂
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