<s>
Picasa	B-Application
was	O
a	O
cross-platform	O
image	B-Application
organizer	I-Application
and	O
image	B-Application
viewer	I-Application
for	O
organizing	O
and	O
editing	O
digital	B-Application
photos	I-Application
,	O
integrated	O
with	O
a	O
now	O
defunct	O
photo-sharing	B-Algorithm
website	O
,	O
originally	O
created	O
by	O
a	O
company	O
named	O
Lifescape	O
(	O
which	O
at	O
that	O
time	O
was	O
incubated	O
by	O
Idealab	O
)	O
in	O
2002	O
.	O
</s>
<s>
"	O
Picasa	B-Application
"	O
is	O
a	O
blend	O
of	O
the	O
name	O
of	O
Spanish	O
painter	O
Pablo	O
Picasso	O
,	O
the	O
phrase	O
mi	O
casa	O
(	O
Spanish	O
for	O
"	O
my	O
house	O
"	O
)	O
and	O
"	O
pic	O
"	O
for	O
pictures	O
.	O
</s>
<s>
Native	O
applications	O
for	O
Windows	B-Application
XP	I-Application
,	O
Windows	B-Application
Vista	I-Application
,	O
Windows	B-Device
7	I-Device
,	O
and	O
macOS	B-Application
were	O
available	O
,	O
and	O
for	O
Linux	B-Application
,	O
the	O
Windows	O
version	O
was	O
bundled	O
with	O
Wine	B-Application
compatibility	I-Application
layer	I-Application
.	O
</s>
<s>
An	O
iPhoto	B-Operating_System
plugin	O
and	O
a	O
standalone	O
program	O
for	O
uploading	O
photos	O
were	O
available	O
for	O
Mac	B-Application
OS	I-Application
X	O
10.4	O
and	O
later	O
.	O
</s>
<s>
In	O
July	O
2004	O
,	O
Google	B-Application
acquired	O
Picasa	B-Application
from	O
Lifescape	O
and	O
began	O
offering	O
it	O
as	O
freeware	B-License
.	O
</s>
<s>
On	O
February	O
12	O
,	O
2016	O
,	O
Google	B-Application
announced	O
it	O
was	O
discontinuing	O
support	O
for	O
Picasa	B-Application
Desktop	O
and	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
,	O
effective	O
March	O
15	O
,	O
2016	O
,	O
and	O
focusing	O
on	O
the	O
cloud-based	O
Google	B-Algorithm
Photos	I-Algorithm
as	O
its	O
successor	O
.	O
</s>
<s>
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
,	O
a	O
companion	O
service	O
,	O
was	O
closed	O
on	O
May	O
1	O
,	O
2016	O
.	O
</s>
<s>
,	O
the	O
latest	O
version	O
of	O
Picasa	B-Application
is	O
3.9	O
,	O
which	O
supports	O
Windows	B-Application
XP	I-Application
,	O
Windows	B-Application
Vista	I-Application
,	O
and	O
Windows	B-Device
7	I-Device
,	O
and	O
has	O
Google+	B-Application
integration	O
for	O
users	O
of	O
that	O
service	O
.	O
</s>
<s>
Version	O
3.9	O
also	O
removed	O
integration	O
with	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
for	O
users	O
of	O
Google+	B-Application
.	O
</s>
<s>
Since	O
June	O
2006	O
,	O
Linux	B-Application
versions	O
have	O
become	O
available	O
as	O
free	O
downloads	O
for	O
most	O
distributions	O
of	O
the	O
Linux	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
It	O
is	O
not	O
a	O
native	O
Linux	B-Application
program	O
but	O
an	O
adapted	O
Windows	O
version	O
that	O
uses	O
the	O
Wine	B-Application
libraries	O
.	O
</s>
<s>
Google	B-Application
has	O
announced	O
that	O
there	O
will	O
be	O
no	O
Linux	B-Application
version	O
for	O
3.5	O
.	O
</s>
<s>
Currently	O
,	O
Google	B-Application
has	O
only	O
officially	O
offered	O
Picasa	B-Application
3.0	I-Application
Beta	O
for	O
Linux	B-Application
.	O
</s>
<s>
On	O
April	O
20	O
,	O
2012	O
,	O
Google	B-Application
announced	O
that	O
they	O
were	O
deprecating	O
Picasa	B-Application
for	O
Linux	B-Application
and	O
will	O
no	O
longer	O
maintain	O
it	O
for	O
Linux	B-Application
.	O
</s>
<s>
To	O
use	O
latest	O
version	O
of	O
Picasa	B-Application
on	O
Linux	B-Application
,	O
Linux	B-Application
users	O
can	O
use	O
Wine	B-Application
and	O
install	O
Picasa	B-Application
for	O
Windows	O
.	O
</s>
<s>
Linux	B-Application
users	O
can	O
use	O
other	O
programs	O
to	O
upload	O
to	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
,	O
including	O
Shotwell	B-Language
and	O
Digikam	B-Language
.	O
</s>
<s>
On	O
January	O
5	O
,	O
2009	O
,	O
Google	B-Application
released	O
a	O
beta	O
version	O
of	O
Picasa	B-Application
for	O
Mac	O
(	O
Intel-based	O
Macs	O
only	O
)	O
.	O
</s>
<s>
Also	O
,	O
a	O
plugin	O
is	O
available	O
for	O
iPhoto	B-Operating_System
to	O
upload	O
to	O
the	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
hosting	O
service	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
standalone	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
uploading	O
tools	O
for	O
OS	B-Application
X	I-Application
10.4	O
or	O
later	O
.	O
</s>
<s>
The	O
Picasa	B-Application
for	O
Mac	O
is	O
a	O
Google	B-Application
Labs	I-Application
release	O
.	O
</s>
<s>
For	O
organizing	O
photos	O
,	O
Picasa	B-Application
has	O
file	O
importing	O
and	O
tracking	O
features	O
,	O
as	O
well	O
as	O
tags	B-General_Concept
,	O
facial	O
recognition	O
,	O
and	O
collections	O
for	O
further	O
sorting	O
.	O
</s>
<s>
It	O
also	O
offers	O
several	O
basic	O
photo	O
editing	O
functions	O
,	O
including	O
color	O
enhancement	O
,	O
red	O
eye	O
reduction	O
,	O
and	O
cropping	B-Application
.	O
</s>
<s>
Picasa	B-Application
supports	O
Google	B-Application
's	I-Application
WebP	O
image	O
format	O
as	O
well	O
as	O
the	O
JPG	O
format	O
and	O
most	O
Raw	B-Application
image	I-Application
format	I-Application
(	O
RAW	B-Application
files	I-Application
)	O
.	O
</s>
<s>
A	O
user	O
can	O
view	O
and	O
edit	O
RAW	B-Application
files	I-Application
and	O
save	O
the	O
finished	O
edit	O
(	O
as	O
JPG	O
,	O
or	O
other	O
forms	O
)	O
without	O
any	O
changes	O
to	O
the	O
original	O
RAW	B-Application
file	I-Application
.	O
</s>
<s>
Picasa	B-Application
uses	O
picasa.ini	O
files	O
to	O
keep	O
track	O
of	O
keywords	O
for	O
each	O
image	O
.	O
</s>
<s>
In	O
addition	O
to	O
this	O
,	O
Picasa	B-Application
attaches	O
IPTC	O
Information	O
Interchange	O
Model	O
(	O
IPTC	O
)	O
keyword	O
data	O
to	O
JPEG	O
files	O
,	O
but	O
not	O
to	O
any	O
other	O
file	O
format	O
.	O
</s>
<s>
Keywords	O
attached	O
to	O
JPEG	O
files	O
in	O
Picasa	B-Application
can	O
be	O
read	O
by	O
other	O
image	O
library	O
software	O
like	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
Album	I-Operating_System
,	O
Adobe	B-Operating_System
Bridge	I-Operating_System
,	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
Lightroom	I-Operating_System
,	O
digiKam	B-Language
,	O
Aperture	B-Operating_System
,	O
and	O
iPhoto	B-Operating_System
.	O
</s>
<s>
According	O
to	O
the	O
Picasa	B-Application
Readme	O
,	O
Picasa	B-Application
can	O
parse	O
Extensible	O
Metadata	O
Platform	O
(	O
XMP	O
)	O
data	O
.	O
</s>
<s>
Picasa	B-Application
has	O
a	O
search	O
bar	O
that	O
is	O
always	O
visible	O
when	O
viewing	O
the	O
library	O
.	O
</s>
<s>
The	O
search	O
bar	O
will	O
search	O
filenames	O
,	O
captions	O
,	O
tags	B-General_Concept
,	O
folder	O
names	O
,	O
and	O
other	O
metadata	O
.	O
</s>
<s>
Picasa	B-Application
also	O
has	O
an	O
experimental	O
feature	O
that	O
allows	O
searching	O
for	O
images	O
that	O
contain	O
certain	O
colors	O
with	O
the	O
"	O
color	O
"	O
operator	O
.	O
</s>
<s>
Picasa	B-Application
has	O
no	O
separate	O
view	O
window	O
.	O
</s>
<s>
This	O
feature	O
is	O
also	O
available	O
through	O
the	O
context	O
menu	O
of	O
Windows	O
Explorer	O
,	O
and	O
provides	O
a	O
way	O
to	O
start	O
the	O
Picasa	B-Application
editor	O
as	O
well	O
.	O
</s>
<s>
In	O
Picasa	B-Application
2	I-Application
and	O
earlier	O
versions	O
,	O
changes	O
to	O
pictures	O
made	O
in	O
Picasa	B-Application
overwrite	O
the	O
original	O
file	O
,	O
but	O
a	O
backup	O
version	O
of	O
the	O
original	O
is	O
saved	O
in	O
a	O
hidden	O
folder	O
named	O
"	O
Originals	O
"	O
in	O
the	O
same	O
folder	O
as	O
the	O
original	O
picture	O
(	O
.picasaoriginals	O
on	O
Mac	B-Application
OS	I-Application
X	O
)	O
.	O
</s>
<s>
In	O
Picasa	B-Application
3	O
,	O
changes	O
to	O
pictures	O
made	O
in	O
Picasa	B-Application
are	O
saved	O
to	O
a	O
hidden	O
file	O
picasa.ini	O
in	O
the	O
same	O
folder	O
as	O
the	O
original	O
picture	O
.	O
</s>
<s>
Viewing	O
the	O
picture	O
in	O
Picasa	B-Application
or	O
using	O
the	O
Picasa	B-Application
Photo	O
Viewer	O
will	O
apply	O
modifications	O
on	O
the	O
fly	O
,	O
whereas	O
viewing	O
through	O
other	O
programs	O
(	O
such	O
as	O
Windows	B-Application
XP	I-Application
's	O
Photo	O
and	O
Fax	O
Viewer	O
)	O
will	O
display	O
the	O
original	O
image	O
.	O
</s>
<s>
On	O
August	O
15	O
,	O
2006	O
,	O
Google	B-Application
announced	O
it	O
had	O
acquired	O
Neven	O
Vision	O
,	O
whose	O
technology	O
can	O
be	O
used	O
to	O
search	O
for	O
features	O
within	O
photos	O
such	O
as	O
people	O
or	O
buildings	O
.	O
</s>
<s>
Google	B-Application
applied	O
this	O
technology	O
for	O
face	O
recognition	O
,	O
and	O
this	O
functionality	O
was	O
launched	O
on	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
on	O
September	O
2	O
,	O
2008	O
.	O
</s>
<s>
Neven	O
Vision	O
incorporates	O
several	O
patents	O
specifically	O
centered	O
around	O
face	O
recognition	O
from	O
digital	B-Application
photo	I-Application
and	O
video	O
images	O
.	O
</s>
<s>
Since	O
June	O
2007	O
,	O
Picasa	B-Application
can	O
write	O
geographic	O
coordinates	O
to	O
Exif	O
metadata	O
,	O
thus	O
geotagging	O
an	O
image	O
.	O
</s>
<s>
Since	O
version	O
3.5	O
of	O
Picasa	B-Application
,	O
geotagging	O
may	O
be	O
done	O
directly	O
inside	O
Picasa	B-Application
,	O
in	O
the	O
Places	O
panel	O
.	O
</s>
<s>
The	O
geotagging	O
functionality	O
is	O
described	O
in	O
the	O
Picasa	B-Application
User	O
's	O
Guide	O
.	O
</s>
<s>
Besides	O
Google+	B-Application
,	O
Picasa	B-Application
also	O
integrated	O
with	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
,	O
an	O
image	B-Algorithm
hosting	I-Algorithm
and	O
sharing	B-Algorithm
web	O
service	O
.	O
</s>
<s>
The	O
service	O
allowed	O
users	O
with	O
a	O
Google	B-Application
account	I-Application
to	O
store	O
and	O
share	O
their	O
photos	O
on	O
the	O
service	O
.	O
</s>
<s>
Users	O
with	O
a	O
Google+	B-Application
account	O
received	O
unlimited	O
storage	O
for	O
photos	O
of	O
a	O
resolution	O
less	O
than	O
2048x2048	O
pixels	O
;	O
all	O
others	O
received	O
unlimited	O
storage	O
for	O
photos	O
of	O
a	O
resolution	O
less	O
than	O
800x800	O
.	O
</s>
<s>
Hello	O
by	O
Google	B-Application
's	I-Application
Picasa	B-Application
was	O
a	O
free	O
computer	O
program	O
that	O
enabled	O
users	O
to	O
send	O
images	O
across	O
the	O
Internet	O
and	O
publish	O
them	O
to	O
their	O
blogs	O
.	O
</s>
<s>
It	O
was	O
similar	O
to	O
an	O
instant	B-Application
messaging	I-Application
program	O
because	O
it	O
allowed	O
users	O
to	O
send	O
text	O
,	O
but	O
Hello	O
focused	O
on	O
digital	B-Application
photographs	I-Application
.	O
</s>
<s>
The	O
service	O
was	O
canceled	O
at	O
the	O
end	O
of	O
2006	O
,	O
and	O
users	O
were	O
instructed	O
to	O
try	O
the	O
Picasa	B-Application
"	O
Blog	O
This	O
"	O
functionality	O
for	O
uploading	O
pictures	O
to	O
their	O
blogs	O
.	O
</s>
<s>
On	O
February	O
12	O
,	O
2016	O
,	O
Google	B-Application
announced	O
that	O
the	O
Picasa	B-Application
desktop	O
application	O
would	O
be	O
discontinued	O
on	O
March	O
15	O
,	O
2016	O
,	O
followed	O
by	O
the	O
closure	O
of	O
the	O
Picasa	B-Algorithm
Web	I-Algorithm
Albums	I-Algorithm
service	O
on	O
May	O
1	O
,	O
2016	O
.	O
</s>
<s>
Google	B-Application
stated	O
that	O
the	O
primary	O
reason	O
for	O
retiring	O
Picasa	B-Application
was	O
that	O
it	O
wanted	O
to	O
focus	O
its	O
efforts	O
"	O
entirely	O
on	O
a	O
single	O
photos	O
service	O
"	O
the	O
cross-platform	O
,	O
web-based	O
Google	B-Algorithm
Photos	I-Algorithm
.	O
</s>
<s>
While	O
support	O
for	O
the	O
desktop	O
version	O
of	O
Picasa	B-Application
is	O
ending	O
,	O
Google	B-Application
has	O
stated	O
that	O
users	O
who	O
have	O
downloaded	O
the	O
software	O
,	O
or	O
who	O
choose	O
to	O
download	O
it	O
prior	O
to	O
the	O
March	O
15th	O
deadline	O
will	O
still	O
be	O
able	O
to	O
use	O
its	O
functionality	O
,	O
albeit	O
with	O
no	O
support	O
from	O
Google	B-Application
.	I-Application
</s>
