<s>
A	O
geotagged	B-Algorithm
photograph	I-Algorithm
is	O
a	O
photograph	O
which	O
is	O
associated	O
with	O
a	O
geographic	O
position	O
by	O
geotagging	O
.	O
</s>
<s>
Usually	O
this	O
is	O
done	O
by	O
assigning	O
at	O
least	O
a	O
latitude	O
and	O
longitude	O
to	O
the	O
image	O
,	O
and	O
optionally	O
elevation	O
,	O
compass	B-Language
bearing	O
and	O
other	O
fields	O
may	O
also	O
be	O
included	O
.	O
</s>
<s>
Several	O
manufacturers	O
offer	O
cameras	O
with	O
a	O
built-in	O
GPS	O
receiver	O
,	O
but	O
most	O
cameras	O
with	O
this	O
capability	O
are	O
camera	O
phones	O
,	O
as	O
camera	O
manufacturers	O
after	O
initial	O
experience	O
in	O
the	O
market	O
came	O
to	O
treat	O
GPS	B-Algorithm
cameras	I-Algorithm
as	O
a	O
niche	O
market	O
.	O
</s>
<s>
The	O
2008	O
Nikon	B-Algorithm
P6000	O
,	O
for	O
example	O
,	O
an	O
early	O
geotagging	O
camera	O
,	O
was	O
replaced	O
in	O
2010	O
by	O
the	O
P7000	O
which	O
lacked	O
that	O
feature	O
.	O
</s>
<s>
Some	O
models	O
also	O
include	O
a	O
compass	B-Language
to	O
indicate	O
the	O
direction	O
the	O
camera	O
was	O
facing	O
when	O
the	O
picture	O
was	O
taken	O
.	O
</s>
<s>
The	O
D1X	O
and	O
D1H	O
that	O
Nikon	B-Algorithm
introduced	O
in	O
2002	O
included	O
a	O
GPS	O
interface	O
.	O
</s>
<s>
In	O
2006	O
the	O
first	O
special	O
GPS	O
receiver	O
for	O
Nikon	B-Algorithm
was	O
produced	O
by	O
Dawntech	O
.	O
</s>
<s>
Since	O
2009	O
Nikon	B-Algorithm
has	O
sold	O
its	O
own	O
Geotagger	O
GP-1	O
.	O
</s>
<s>
Some	O
digital	B-Device
cameras	I-Device
and	O
camera	O
phones	O
support	O
an	O
external	O
GPS	O
receiver	O
connected	O
by	O
cable	O
,	O
or	O
inserted	O
into	O
the	O
memory	O
card	O
slot	O
or	O
flash	O
shoe	O
.	O
</s>
<s>
The	O
Samsung	O
SH100	O
can	O
connect	O
using	O
Wi-Fi	O
to	O
get	O
position	O
data	O
from	O
a	O
GPS-enabled	O
smartphone	B-Application
.	O
</s>
<s>
Many	O
GPS-ready	O
cameras	O
are	O
currently	O
available	O
,	O
made	O
by	O
manufacturers	O
such	O
as	O
Nikon	B-Algorithm
,	O
Fujifilm	O
,	O
Sony	O
and	O
Panasonic	O
.	O
</s>
<s>
Most	O
cameras	O
sold	O
today	O
do	O
not	O
contain	O
a	O
built-in	O
GPS	O
receiver	O
;	O
however	O
,	O
an	O
external	O
location-aware	O
device	O
,	O
such	O
as	O
a	O
hand-held	O
GPS	O
logger	O
,	O
can	O
still	O
be	O
used	O
with	O
a	O
non-GPS	O
digital	B-Device
camera	I-Device
for	O
geotagging	O
.	O
</s>
<s>
Geocoding	B-Application
and	O
reverse	O
geocoding	B-Application
can	O
be	O
used	O
to	O
convert	O
between	O
locations	O
and	O
addresses	O
.	O
</s>
<s>
An	O
advanced	O
comparative	O
analysis	O
of	O
such	O
photos	O
with	O
the	O
total	O
collection	O
set	O
of	O
all	O
photos	O
available	O
from	O
the	O
surrounding	O
coordinates	O
,	O
needs	O
to	O
be	O
done	O
to	O
single	O
out	O
and	O
flag	O
such	O
photos	O
,	O
but	O
such	O
a	O
software	O
's	O
value	O
,	O
need	O
and	O
purpose	O
could	O
be	O
limited	O
in	O
today	O
's	O
environment	O
where	O
almost	O
every	O
smartphone	B-Application
and	O
camera	O
have	O
geotagging	O
built-in	O
and	O
users	O
do	O
not	O
need	O
to	O
manually	O
enter	O
this	O
information	O
.	O
</s>
<s>
Some	O
manufacturers	O
of	O
military	O
and	O
professional	O
mapping-grade	O
GPS	O
instruments	O
have	O
integrated	O
a	O
GPS	O
receiver	O
with	O
a	O
laser	O
rangefinder	O
and	O
digital	B-Device
camera	I-Device
.	O
</s>
<s>
Civilian	O
integrated	O
GPS	B-Algorithm
cameras	I-Algorithm
with	O
rangefinders	O
and	O
remote	O
standoff	O
capability	O
are	O
currently	O
available	O
made	O
by	O
manufacturers	O
such	O
as	O
Ricoh	O
and	O
Surveylab	O
.	O
</s>
<s>
When	O
geotagged	B-Algorithm
photos	I-Algorithm
are	O
uploaded	O
to	O
online	O
sharing	O
communities	O
such	O
as	O
Flickr	B-Algorithm
,	O
Panoramio	B-Algorithm
or	O
Moblog	O
,	O
the	O
photo	O
can	O
be	O
placed	O
onto	O
a	O
map	O
to	O
view	O
the	O
location	O
the	O
photo	O
was	O
taken	O
.	O
</s>
<s>
Many	O
smartphones	B-Application
automatically	O
geotag	O
their	O
photos	O
by	O
default	O
.	O
</s>
<s>
Additionally	O
smartphones	B-Application
can	O
use	O
their	O
GPS	O
to	O
geotag	O
photos	O
taken	O
with	O
an	O
external	O
camera	O
.	O
</s>
<s>
Geotagged	B-Algorithm
photos	I-Algorithm
may	O
be	O
visually	O
stamped	O
with	O
their	O
GPS	O
location	O
information	O
using	O
software	O
tools	O
.	O
</s>
<s>
A	O
stamped	O
photo	O
affords	O
universal	O
and	O
cross-platform	B-Operating_System
viewing	O
of	O
the	O
photo	O
's	O
location	O
,	O
and	O
offers	O
the	O
security	O
of	O
retaining	O
that	O
location	O
information	O
in	O
the	O
event	O
of	O
metadata	O
corruption	O
,	O
or	O
if	O
file	O
metadata	O
is	O
stripped	O
from	O
a	O
photo	O
,	O
e.g.	O
</s>
<s>
These	O
data	O
are	O
not	O
visible	O
in	O
the	O
picture	O
itself	O
but	O
are	O
read	O
and	O
written	O
by	O
special	O
programs	O
and	O
most	O
digital	B-Device
cameras	I-Device
and	O
modern	O
scanners	B-Application
.	O
</s>
<s>
This	O
geotag	O
information	O
can	O
be	O
read	O
by	O
many	O
programs	O
,	O
such	O
as	O
the	O
cross-platform	B-Operating_System
open	O
source	O
ExifTool	B-Language
.	O
</s>
