NoOp wrote:
On 05/13/2012 01:33 PM, David E. Ross wrote:
On 5/13/12 12:30 PM, Ant wrote:
On 5/13/2012 11:18 AM PT, David E. Ross typed:

Photos taken with the iPhone upside-down or sideways are automatically
reoriented when displayed by the iPhone.  There is a flag in the image
file that indicates the orientation of the iPhone when the photo was
taken and a sensor in the iPhone that indicates the current orientation.

There has been much debate about whether to reorient photos in TBird and
SeaMonkey's mail-news according the the flag.  See bug #298619 at
<https://bugzilla.mozilla.org/show_bug.cgi?id=298619>.

Wow! I thought there was something wrong with my old computer/SeaMonkey!
Do I assume other e-mail clients, beside Mozilla's, do this too? I am
getting more and more iPhone's sent photographs/photos. these days. :(

I don't know about other E-mail clients.  I understand that not all
digital cameras set the EXIF flag, especially older cameras.

The real problem is that there are few (if any) tools to tweak the EXIF
flag.  Thus, a photo that has been manually rotated (e.g., via
Micro$oft's Photo Editor) will be again rotated -- incorrectly -- by an
application that does check the EXIF flag because the sender was not
able to reset that flag.

Frankly, I still consider photos from phones to be of poorer quality
than photos from an actual camera.  I use a Canon digital camera and do
not have any kind of smart phone.  I always view my photos and often
resize and crop them before sending them via E-mail.  In the process, I
manually rotate those that require reorientation.

I have yet to find a specification for the EXIF flag.  Thus, I cannot
manually reset the flag with my hex editor if I manually rotate a photo.


I think you may be looking for the Orientation Tag? Dec 274 Hex 112.
See the EXIF spec(s) 2.2 or 2.3.
This may be of some use (I've not tried it - yet):
<https://addons.mozilla.org/en-US/firefox/addon/exif-viewer/developers>
<https://addons.mozilla.org/en-US/firefox/addon/exif-viewer/>


Steve Jobs was a genius as a marketing man, not as a computer scientist :)

--
~Vink
GerardJan Vinkesteijn VRI
http://vinkesteijn.info
mailto://g.j.f.vinkeste...@hotmail.es
http://ciudadpatricia.com
on Linux


_______________________________________________
support-seamonkey mailing list
support-seamonkey@lists.mozilla.org
https://lists.mozilla.org/listinfo/support-seamonkey

Reply via email to