Hi Tamas,
That would be interesting. So the user could specify a folder with
images and GDAL would create an OGR layer that would expose the photo
location? The OGR feature would have certain EXIF data exposed as
attributes?
If you work on this, could you also expose other EXIF data, such as the
viewpoint coordinates, the image direction, the FOV or focal length, the
sensor size, etc. - this information could be used to create a field of
view angle of the picture.
You can try this at http://www.geofoto.ch/geophotomap/index.svg where
you can click on a picture standpoint and the browser will display an
angle where the picture is looking at.
I'd be interested in such a provider, as it would open a lot of
possibilities to display photo information in various applications.
Are you aware of EXIFTOOL - the perl-script that allows getting and
setting image metadata, such as EXIF, IPTC, XMP, etc.? See
http://www.sno.phy.queensu.ca/~phil/exiftool/ - it is sort of the Swiss
Army Knife of photo metadata and one of the fewer apps that can also set
metadata - not just read.
Andreas
On Mon, 23 Jul 2012 09:51:14 +0200, Tamas Szekeres wrote:
Hi All,
We're thinking about implementing a new OGR driver which would
represent a set of images as a vector data source. The images are
taken from any GPS compatible mobile device, and each picture would
be
represented as a point feature, the positions would be extracted from
the exif information. The file name and path would be provided as an
attribute for each feature. This data source could then be used by
higher level apps to provide symbols at the picture locations in the
map and display the picture when the feature is selected. The driver
would definitely use GDAL to extract information about the provided
images.
I'm not sure whether we already have some kind of alternative
solution
to this, let me know if you know about any. Further ideas about this
topic would also be helpful.
Best regards,
Tamas
--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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