In this work, two devices are used in the field, the camera and the GPS. Recent digital cameras with builtin GPS receivers are not commonly used, although some high-end cameras are already equipped. Unfortunately, the majority digital camera manufacturers are not keeping up with technology on this field. This is either because including a GPS device would make the camera more expensive or because geo-tagging is still not a mainstream life requirement. However, mobile smartphones are used extensively around the world. Most of the smartphones integrate GPS receivers and cameras, which can be used auto geo-tagging, although an appropriate application may be required if this ability does not already included.