How to extract GPS tags from a image

Hi all,

I think I have tried almost everything.

1. I have been able to do that from a .NET program and by using
PropertyItems. Unfortunately PropertyItems is not available in CF

2. Using OpenNetCF. The GPS tags are not defined in this library.

3. Using a C++ COM Class and calling that class from my CF program.
Based on this
http://www.pocketpcdn.com/articles/articles.php?&atb.set(c_id)=57&atb.set(a_id)=6211&atb.perform(details)=&
Unfortunately that function doesn't return the GPS tags either.

What else can I try? I'm really desperate with this.
Any help will be appreciated.

Thanks a lot.

mind_the_gap
Thu May 01 05:42:48 CDT 2008

Hi LEM,

I had the same problem as you: I needed to get the georeferencing data
of images - in particular case of GeoTiffs.
I wrote myself a C++ Wrapper DLL which holds references to the image
loaded via GDAL - which you can, with a bit of tweaking and searching
compile for WinCE. An advantage is that you can read a wide varity of
file types.

I hope this helps,

Cheers,
Tom


LEM wrote:
> Hi all,
>
> I think I have tried almost everything.
>
> 1. I have been able to do that from a .NET program and by using
> PropertyItems. Unfortunately PropertyItems is not available in CF
>
> 2. Using OpenNetCF. The GPS tags are not defined in this library.
>
> 3. Using a C++ COM Class and calling that class from my CF program.
> Based on this
> http://www.pocketpcdn.com/articles/articles.php?&atb.set(c_id)=57&atb.set(a_id)=6211&atb.perform(details)=&
> Unfortunately that function doesn't return the GPS tags either.
>
> What else can I try? I'm really desperate with this.
> Any help will be appreciated.
>
> Thanks a lot.

Fabien
Thu May 01 11:33:01 CDT 2008

Hi,

You can use an XML file to associate NMEA data to your image.

BR

Fabien Decret (Device Application Development MVP)
Windows Embedded Consultant

ADENEO (ADESET)
http://www.adeneo.adetelgroup.com/ | http://fabdecret.blogspot.com/


On 1 mai, 12:42, mind_the_gap <2voo...@gmx.de> wrote:
> Hi LEM,
>
> I had the same problem as you: I needed to get the georeferencing data
> of images - in particular case of GeoTiffs.
> I wrote myself a C++ Wrapper DLL which holds references to the image
> loaded via GDAL - which you can, with a bit of tweaking and searching
> compile for WinCE. An advantage is that you can read a wide varity of
> file types.
>
> I hope this helps,
>
> Cheers,
> Tom
>
>
>
> LEM wrote:
> > Hi all,
>
> > I think I have tried almost everything.
>
> > 1. I have been able to do that from a .NET program and by using
> > PropertyItems. Unfortunately PropertyItems is not available in CF
>
> > 2. Using OpenNetCF. The GPS tags are not defined in this library.
>
> > 3. Using a C++ COM Class and calling that class from my CF program.
> > Based on this
> >http://www.pocketpcdn.com/articles/articles.php?&atb.set(c_id)=3D57&atb..=
.
> > Unfortunately that function doesn't return the GPS tags either.
>
> > What else can I try? I'm really desperate with this.
> > Any help will be appreciated.
>
> > Thanks a lot.- Masquer le texte des messages pr=E9c=E9dents -
>
> - Afficher le texte des messages pr=E9c=E9dents -

LEM
Thu May 01 16:46:37 CDT 2008

Hi Fabien,

I'm not sure if I understand you. What I need is to extract the EXIF
data associate with an image.

Regards

Fabien wrote:
> Hi,
>
> You can use an XML file to associate NMEA data to your image.
>
> BR
>
> Fabien Decret (Device Application Development MVP)
> Windows Embedded Consultant
>
> ADENEO (ADESET)
> http://www.adeneo.adetelgroup.com/ | http://fabdecret.blogspot.com/
>
>
> On 1 mai, 12:42, mind_the_gap <2voo...@gmx.de> wrote:
>> Hi LEM,
>>
>> I had the same problem as you: I needed to get the georeferencing data
>> of images - in particular case of GeoTiffs.
>> I wrote myself a C++ Wrapper DLL which holds references to the image
>> loaded via GDAL - which you can, with a bit of tweaking and searching
>> compile for WinCE. An advantage is that you can read a wide varity of
>> file types.
>>
>> I hope this helps,
>>
>> Cheers,
>> Tom
>>
>>
>>
>> LEM wrote:
>>> Hi all,
>>> I think I have tried almost everything.
>>> 1. I have been able to do that from a .NET program and by using
>>> PropertyItems. Unfortunately PropertyItems is not available in CF
>>> 2. Using OpenNetCF. The GPS tags are not defined in this library.
>>> 3. Using a C++ COM Class and calling that class from my CF program.
>>> Based on this
>>> http://www.pocketpcdn.com/articles/articles.php?&atb.set(c_id)=57&atb...
>>> Unfortunately that function doesn't return the GPS tags either.
>>> What else can I try? I'm really desperate with this.
>>> Any help will be appreciated.
>>> Thanks a lot.- Masquer le texte des messages précédents -
>> - Afficher le texte des messages précédents -
>

Fabien
Fri May 02 06:21:53 CDT 2008

Hi,

Sorry I didn't undersand you wanted to extract EXIF data, you have to
use OpenNetCF. Check out this link:
http://blog.markarteaga.com/ExtractingEXIFTagsUsingCompactFramework.aspx

Fabien Decret (Device Application Development MVP)
Windows Embedded Consultant

ADENEO (ADESET)
http://www.adeneo.adetelgroup.com/|http://fabdecret.blogspot.com/

On 1 mai, 23:46, LEM <anonym...@nospam.com> wrote:
> Hi Fabien,
>
> I'm not sure if I understand you. What I need is to extract the EXIF
> data associate with an image.
>
> Regards
>
>
>
> Fabien wrote:
> > Hi,
>
> > You can use an XML file to associate NMEA data to your image.
>
> > BR
>
> > Fabien Decret (Device Application Development MVP)
> > Windows Embedded Consultant
>
> > ADENEO (ADESET)
> >http://www.adeneo.adetelgroup.com/|http://fabdecret.blogspot.com/
>
> > On 1 mai, 12:42, mind_the_gap <2voo...@gmx.de> wrote:
> >> Hi LEM,
>
> >> I had the same problem as you: I needed to get the georeferencing data
> >> of images - in particular case of GeoTiffs.
> >> I wrote myself a C++ Wrapper DLL which holds references to the image
> >> loaded via GDAL - which you can, with a bit of tweaking and searching
> >> compile for WinCE. An advantage is that you can read a wide varity of
> >> file types.
>
> >> I hope this helps,
>
> >> Cheers,
> >> Tom
>
> >> LEM wrote:
> >>> Hi all,
> >>> I think I have tried almost everything.
> >>> 1. I have been able to do that from a .NET program and by using
> >>> PropertyItems. Unfortunately PropertyItems is not available in CF
> >>> 2. Using OpenNetCF. The GPS tags are not defined in this library.
> >>> 3. Using a C++ COM Class and calling that class from my CF program.
> >>> Based on this
> >>>http://www.pocketpcdn.com/articles/articles.php?&atb.set(c_id)=3D57&atb=
...
> >>> Unfortunately that function doesn't return the GPS tags either.
> >>> What else can I try? I'm really desperate with this.
> >>> Any help will be appreciated.
> >>> Thanks a lot.- Masquer le texte des messages pr=E9c=E9dents -
> >> - Afficher le texte des messages pr=E9c=E9dents -- Masquer le texte des=
messages pr=E9c=E9dents -
>
> - Afficher le texte des messages pr=E9c=E9dents -

Star
Fri May 02 07:37:15 CDT 2008

Fabien, I appreciate your help but in my first post I mentioned that
I used OpenNetCF but that doesn't return the GPS tags.

mind_the_gap
Fri May 02 11:11:04 CDT 2008

Do you need the EXIF Tags or sticking to a ready file format like
GeoTiff (which again would work with GDAL, s.o.)?