Geocoding using Google Earth works much the same as geocoding using the built-in map. Once you activate this feature, HoudahGeo will launch Google Earth and show a floating window with geotagging controls.
Google Earth will show crosshairs at the center of the map view. Adjust the view so that the crosshairs match the location where you want to tag the selected images.
The Settings button offers two options which may help speed up the process:
The Geocode button copies the crosshairs’ coordinates to the currently selected images.
The Fly to Image Location button moves the crosshairs to the coordinates of the currently selected images.
The arrow buttons allow you to navigate images in the project without returning to the HoudahGeo project window.
When you quit Google Earth, you will be offered the option to save the crosshairs to the
My Placesfolder in Google Earth. You should decline that offer.