ScreenCastsOnline have published a short video tutorial that showcases Tembo – the friendly file search tool.
In this 10-minute video, Don McAllister gives you a tour of Tembo and highlights what makes Tembo unique. Sometimes good things come in small packages. This adage applies equally to this screencast and to Tembo.
Continue reading Tembo 2.5 Video Tutorial
Geocoding using GPS data is arguably the quickest method of adding location information to photos. The GPS data comes in the form of a tracklog file recorded by a GPS device or smartphone app. Every few seconds a record of the current time and location is added to the tracklog.
Besides location coordinates, the GPS device can record additional information like altitude, heading, or speed. When HoudahGeo matches photos to the tracklog it can copy both location coordinates and such additional information to photo metadata.
At the same time, some cameras have sensors that can provide such additional information even when not using a GPS receiver to add location coordinates to a photo.
A compass built into the camera body can, for example, provide viewing direction information. This would be more accurate than a view direction computed from the direction of travel between to locations recorded in the tracklog.
When the same information is available from two sources – the GPS tracklog and photo metadata – you are left with the choice of which to trust.
Continue reading Using HoudahGeo 6 With Cameras That Provide Altitude or Heading Measurements