<s>
Potrace	B-Application
is	O
a	O
cross-platform	B-Operating_System
,	O
open-source	B-Application
software	I-Application
which	O
converts	O
bitmapped	B-Algorithm
images	I-Algorithm
into	O
vector	O
graphics	O
.	O
</s>
<s>
Various	O
graphical	O
frontends	O
are	O
available	O
for	O
the	O
command-line	O
application	O
Potrace	B-Application
.	O
</s>
<s>
Notably	O
,	O
it	O
has	O
been	O
integrated	O
with	O
Inkscape	B-Application
,	O
giving	O
Inkscape	B-Application
its	O
Trace	O
Bitmap	O
action	O
.	O
</s>
<s>
FontForge	B-Application
can	O
use	O
Potrace	B-Application
to	O
import	O
a	O
bitmap	O
image	O
into	O
a	O
font	O
.	O
</s>
<s>
Potrace	B-Application
is	O
also	O
used	O
by	O
the	O
music	B-Application
engraving	I-Application
program	O
LilyPond	B-Application
.	O
</s>
<s>
An	O
open-source	B-Application
progressive	B-Application
web	I-Application
app	I-Application
that	O
uses	O
Potrace	B-Application
is	O
.	O
</s>
<s>
Potrace	B-Application
's	O
input	O
and	O
output	O
is	O
black	O
and	O
white	O
(	O
colored	O
images	O
are	O
greyscaled	O
before	O
processing	O
)	O
.	O
</s>
<s>
However	O
,	O
Inkscape	B-Application
is	O
capable	O
of	O
producing	O
color	O
images	O
by	O
decomposing	O
each	O
channel	O
into	O
several	O
black	O
and	O
white	O
images	O
and	O
tracing	O
them	O
separately	O
with	O
Potrace	B-Application
.	O
</s>
<s>
The	O
commercial	O
Total	O
Vectorize	O
program	O
also	O
uses	O
Potrace	B-Application
as	O
its	O
core	O
.	O
</s>
<s>
The	O
program	O
is	O
dual-licensed	O
as	O
"	O
Potrace	B-Application
"	O
under	O
the	O
GPL	B-License
and	O
as	O
"	O
Potrace	B-Application
Professional	O
"	O
in	O
a	O
proprietary	O
license	O
by	O
Selinger	O
's	O
company	O
,	O
Icosasoft	O
Software	O
,	O
Inc	O
.	O
</s>
