GeoLocation Question

[Mick Sulley]

I have just taken a series of pictures in different locations with my
Canon.  For each location I also took one with my phone so that I would
have the coordinates.  I have imported all pictures into DigiKam, what
is the easiest/best way to copy the location data from the phone pics to
the Canon pics?

Thanks
Mick
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[J Albrecht]

For future exercises, get yourself a free program* which records your GPS coordinates as a unique “track”. Synchronise your camera’s on-board clock with that of your phone’s GPS. Then, apply the resultant gpx file to your photos in Digikam.

*I run OruxMaps on Android

> On 23 Jun 2016, at 17:03, Mick Sulley <[hidden email]> wrote:
>
> I have just taken a series of pictures in different locations with my Canon.  For each location I also took one with my phone so that I would have the coordinates.  I have imported all pictures into DigiKam, what is the easiest/best way to copy the location data from the phone pics to the Canon pics?
>
> Thanks
> Mick
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> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

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[Sveinn í Felli-2]

Þann fim 23.jún 2016 21:03, skrifaði Mick Sulley:
> I have just taken a series of pictures in different locations with my
> Canon.  For each location I also took one with my phone so that I would
> have the coordinates.  I have imported all pictures into DigiKam, what
> is the easiest/best way to copy the location data from the phone pics to
> the Canon pics?

I think Digikam only takes a GPX track and applies/approximates to a
series of photos. To make a GPX track from your phone photos, you can
use exiftool:

<http://www.sno.phy.queensu.ca/~phil/exiftool/geotag.html>

See the section "Inverse Geotagging". Once created the GPX-file, you can
use Digikam for associating the timestamps/coordinates to the photos.

Good luck,
Sveinn í Felli
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[Sveinn í Felli-2]

Þann fös 24.jún 2016 09:36, skrifaði Sveinn í Felli:

> Þann fim 23.jún 2016 21:03, skrifaði Mick Sulley:
>> I have just taken a series of pictures in different locations with my
>> Canon.  For each location I also took one with my phone so that I would
>> have the coordinates.  I have imported all pictures into DigiKam, what
>> is the easiest/best way to copy the location data from the phone pics to
>> the Canon pics?
>
> I think Digikam only takes a GPX track and applies/approximates to a
> series of photos. To make a GPX track from your phone photos, you can
> use exiftool:
>
> <http://www.sno.phy.queensu.ca/~phil/exiftool/geotag.html>
>
> See the section "Inverse Geotagging". Once created the GPX-file, you can
> use Digikam for associating the timestamps/coordinates to the photos.

On a second check, it seems that in the "KML Export" module
there's an option "Draw GPX track". Maybe this is a way to export GPX
directly from your phone pictures?

> Good luck,
> Sveinn í Felli
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[Andreas T. Ege]

Hi there,

If your mobile photos have the geolocation data in a format digikam can read, it's simple.
Mark the images you want to tag, go to geolocation under the image menu, right click on the tagged photo and copy coordinates. Then choose the untagged images, right click and paste.
Sorry, not sure about the english names and might be wrong with the exact menu - am on holiday and far away from my digikam install.

What I do is to use my mobile as a gps tracker and then use digikams time correlation function to find the gps coordinates for the images - usually works quite well and easy (though I frequently forget to set the cameras clock to the local time, but digikam allows to adjust for that). If you take the mobile with you anyway that's probably the more conveniant solution.

Andreas Ege
Dr. med. vet. MRCVS

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On 23 Jun 2016, at 23:05, Mick Sulley <[hidden email]> wrote:

I have just taken a series of pictures in different locations with my 
Canon.  For each location I also took one with my phone so that I would 
have the coordinates.  I have imported all pictures into DigiKam, what 
is the easiest/best way to copy the location data from the phone pics to 
the Canon pics?

Thanks
Mick

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[Michael Rasmussen]

On Fri, Jun 24, 2016 at 02:27:49PM +0200, Andreas Ege wrote:
> Hi there,
>
> If your mobile photos have the geolocation data in a format digikam can read, it's simple.
> Mark the images you want to tag, go to geolocation under the image menu, right click on the tagged photo and copy coordinates. Then choose the untagged images, right click and paste.
> Sorry, not sure about the english names and might be wrong with the exact menu - am on holiday and far away from my digikam install.

This works great.

To clarify a bit:
Select the photos you want to work with, including the reference image with the Geolocation information.
From the Image menu select Geolocation - the Geolocation box with pop up.
Right click on the image with the coordinates and select copy.
Select the image or images you wish to add coordinates to, right click and paste.

Just did it. Works Great.

> What I do is to use my mobile as a gps tracker and then use digikams time correlation function to find the gps coordinates for the images - usually works quite well and easy (though I frequently forget to set the cameras clock to the local time, but digikam allows to adjust for that). If you take the mobile with you anyway that's probably the more conveniant solution.
>
> Andreas Ege
> Dr. med. vet. MRCVS
>
> Sent from BlueMail
>
>
>
> On 23 Jun 2016, 23:05, at 23:05, Mick Sulley <[hidden email]> wrote:
> >I have just taken a series of pictures in different locations with my
> >Canon.  For each location I also took one with my phone so that I would
> >
> >have the coordinates.  I have imported all pictures into DigiKam, what
> >is the easiest/best way to copy the location data from the phone pics
> >to
> >the Canon pics?
> >
> >Thanks
> >Mick
> >_______________________________________________
> >Digikam-users mailing list
> >[hidden email]
> >https://mail.kde.org/mailman/listinfo/digikam-users

> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users


--
      Michael Rasmussen, Portland Oregon  
    Be Appropriate && Follow Your Curiosity
YOU ARE IN A TWISTY LITTLE MAZE OF PASSAGES, ALL DIFFERENT.

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[Martin Burnicki-2]

Mick Sulley wrote:
> I have just taken a series of pictures in different locations with my
> Canon.  For each location I also took one with my phone so that I would
> have the coordinates.  I have imported all pictures into DigiKam, what
> is the easiest/best way to copy the location data from the phone pics to
> the Canon pics?

In the past I've also tried using the phone to get the coordinates, and
I tried several apps to record a GPX track. However, I often had the
problem that an app terminated itself while I carried the phone in my
pocket, when I accidentally touched a button on the phone to do
something else with it, when the phone went sleep mode (otherwise it
used much of the battery power) or whatever. So I didn't find this
method very reliable.

I ended up with this device:
https://www.amazon.de/gp/product/B00I4Z1SQS/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

You can simply put it into your photo bag, and it records all the track
where you are moving. I find this extremely helpful when I'm on
holidays, just like now. ;-)

If you do this then you should make sure your camera's time is set
correctly to the second. For example, if you visit a city and make a bus
tour it *does* matter if you've taken a photo out of the bus a few
seconds earlier or later, since the bus can move quite some way in a few
seconds, even around corners.

On the other hand, if you know afterwards how many seconds your camera
time was off, e.g. if you know exactly on a map where the picture was
taken, you can account for the time offset when you apply the GPX track
to your photos. DK provides quite a few nice options for this, IMO.

Martin

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[Mick Sulley]

Firstly many thanks to those who replied last time, much appreciated.

I have discovered that my Android phone logs GPS data most of the time,
but sometimes it just seems to hang on to the last coordinates and
report them again.  I have seen a 200 mile error on the data.  I have
now built a GPS tracking device using a Raspberry Pi Zero and I intend
to use that.

Now a question on the import, I could import into the database or into
Metadata, or I guess into both.  If I import into one will it get
propagated to the other?  Is there any benefit to one over the other?

Thanks
Mick

On 23/06/16 22:03, Mick Sulley wrote:

> I have just taken a series of pictures in different locations with my
> Canon.  For each location I also took one with my phone so that I
> would have the coordinates.  I have imported all pictures into
> DigiKam, what is the easiest/best way to copy the location data from
> the phone pics to the Canon pics?
>
> Thanks
> Mick
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

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