Geotagging in Photography is the method of assignment of geographic coordinates in metadata of a digital photograph and is called Geotagged photograph.
What is Geotagging in Photography
Geotagging in Photography used in spatial planning and tourism, environmental planning, transport and civil protection. A frequent and common use is to illustrate a place in a city with pictures of interesting historical buildings. Another focus in the use of Geotagging in Photography is the environmental protection. Specific habitat maps can be provided with current time saving details.
The geographical coordinates of the position written as metadata directly when shooting with a GPS receiver enabled Digital Camera. With special hardware like a Digital Camera with GPS receiver embeds the data directly in the photograph, otherwise later the metadata ( EXIF ) is added to the images on computer.
Technology behind Geotagging
Advantage of direct Geotagging is optimized geo-imaging process. For storing the coordinates directly while shooting a GPS-enabled digital cameras is necessary. Several PDAs or mobile phones are equipped with a camera and GPS functionality, they can perform Geotagging natively or by using special software or patching of the existing software.
When Geotagging enabled camera is mounted on a special hot shoe can also add the direction of the image are captured in an integrated electronic compass as metadata.