Image Geotagging and orientation

[Marco]

Hi,

I need to tag multiple images with their position and orientation (heading).

Attached you can find text file with image ID, Long, Lat, Altitude and YAW.
If orientation not possible to write, geotagging can be enough.

Any help is very appreciated.

Best regards.

[Phil Harvey]

You can write the Yaw to GPSImgDirection.  To do this:

1. Replace all tabs in your geotag.txt file with commas

2. Replace the first line in your geotag.txt file with this line:

Code Select Expand

SourceFile,GPSLatitude,GPSLongitude,GPSAltitude,GPSImgDirection

3. Move geotag.txt to the directory containing the JPG files.

4. "cd" to the directory containing the JPG files, then use this command to tag the files:

exiftool -csv=geotag.txt .

You should probably also write the reference directions with a command like this (assuming you are in the NW):

exiftool -gpsaltituderef=above -gpslatituderef=N -gpslongituderef=W -gpsimgdirectionref=T .

- Phil

[Marco]

Hi Phil,

I have modified the text file following your instructions.
Attached you can find the new txt file.
When I start the tagging procedure the cmd writes me back the following message (no file specified)

Not really clear the point about:

writing the reference directions with a command like this (assuming you are in the NW):

exiftool -gpsaltituderef=above -gpslatituderef=N -gpslongituderef=W -gpsimgdirectionref=T .

can you help?

[StarGeek]

The geotag.txt file looks good.

Did you change directory to the one with the files to tag?  Is the geotag.txt in that directory as well?

[Phil Harvey]

You forgot the "." at the end of the command for the current directory if you got a "no file specified" message.

The EXIF GPS tags require a reference direction to also be written.  In EXIF you must specify the N/S/E/W hemisphere because the coordinates are unsigned.

- Phil

[Marco]

Exactly, the code works great.
I was wondering if I can add a tag called "yaw" instead of GPSImgDirection.
is it possible?

[Phil Harvey]

For an example of how to define new tags like this, look at the GPSPitch and GPSRoll tags in the sample config file.

The config file shows how to do this for both EXIF and XMP, but I would recommend XMP because EXIF isn't designed to be extensible and doesn't store the tag name.

- Phil