Associate single point coordinates to image.

[deve]

Is possible to georefence a single point in image? E.g. Action Diagram: 1) central point (center <-> X,Y) is georeferenced (center <-> lat,lon); 2) an image loader read center coordinates (lat,lon) 3) the loader place image in map point (lat,lon). 4) result: tag a location with involved screenshot Tnx

[Rahkonen Jukka (Tike)]

deve <orante.tucceri <at> exprivia.it> writes:

>
>
> Is possible to georefence a single point in image?
>
> E.g. Action Diagram:
>  1) central point (center  X,Y) is georeferenced (center  lat,lon);
>  2) an image loader read center coordinates (lat,lon)
>  3) the loader place image in map point (lat,lon).
> 4) result: tag a location with involved screenshot

Hi,

How about using standard EXIF latitude and longitude tags and tools like in
http://readexifdata.com/?

-Jukka Rahkonen-



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[deve]

Yes. The final effect is the same: photo--> location-->image over the map.

[Eli Adam]

GDAL reads EXIF data and you can grab that output and then send it
into an OGR output.  I used to have a bash script that did that, but
then I found there were some tricky things to overcome and found that
GpsPrune is really good at this.

GpsPrune can also correlate a GPS track and time stamped photos
lacking EXIF location data.  It exports KML points for the photos.

ExifTool has lots of EXIF data manipulation capacity,
http://www.sno.phy.queensu.ca/~phil/exiftool/


Best regards, Eli

On Fri, Nov 14, 2014 at 3:38 AM, deve <[hidden email]> wrote:

> Yes. The final effect is the same: photo--> location-->image over the map.
>
>
>
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/Associate-single-point-coordinates-to-image-tp5172985p5173000.html
> Sent from the GDAL - Dev mailing list archive at Nabble.com.
> _______________________________________________
> gdal-dev mailing list
> [hidden email]
> http://lists.osgeo.org/mailman/listinfo/gdal-dev

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[Eli Adam]

I think that this is generally call "geotagging" which might help
while looking for options.

Eli

On Fri, Nov 14, 2014 at 9:03 AM, Eli Adam <[hidden email]> wrote:

> GDAL reads EXIF data and you can grab that output and then send it
> into an OGR output.  I used to have a bash script that did that, but
> then I found there were some tricky things to overcome and found that
> GpsPrune is really good at this.
>
> GpsPrune can also correlate a GPS track and time stamped photos
> lacking EXIF location data.  It exports KML points for the photos.
>
> ExifTool has lots of EXIF data manipulation capacity,
> http://www.sno.phy.queensu.ca/~phil/exiftool/
>
>
> Best regards, Eli
>
> On Fri, Nov 14, 2014 at 3:38 AM, deve <[hidden email]> wrote:
>> Yes. The final effect is the same: photo--> location-->image over the map.
>>
>>
>>
>> --
>> View this message in context: http://osgeo-org.1560.x6.nabble.com/Associate-single-point-coordinates-to-image-tp5172985p5173000.html
>> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>> _______________________________________________
>> gdal-dev mailing list
>> [hidden email]
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev

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