img_coords-0.1.0 is not a library.
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img_coords-0.1.8
ImageCoordinates
This executable can scan a directory tree on your disk, find all images with EXIF data containing coordinates, and collect them into a single file. Output can be either JSON (default) or KML. JSON also contains the camera direction, if available in EXIF.
Example
img_coords scan --dir SOME_ROOT_DIRECTORY --format kml
Run img_coords or img_coords scan to get help.