<s>
The	O
clone	B-Algorithm
tool	I-Algorithm
,	O
as	O
it	O
is	O
known	O
in	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
,	O
Inkscape	B-Application
,	O
GIMP	B-Application
,	O
and	O
Corel	B-Application
PhotoPaint	I-Application
,	O
is	O
used	O
in	O
digital	B-Application
image	I-Application
editing	I-Application
to	O
replace	O
information	O
for	O
one	O
part	O
of	O
a	O
picture	O
with	O
information	O
from	O
another	O
part	O
.	O
</s>
<s>
In	O
other	B-Application
image	I-Application
editing	I-Application
software	I-Application
,	O
its	O
equivalent	O
is	O
sometimes	O
called	O
a	O
rubber	O
stamp	O
tool	O
or	O
a	O
clone	B-Algorithm
brush	I-Algorithm
.	O
</s>
<s>
The	O
Clone	B-Algorithm
tool	I-Algorithm
can	O
fill	O
in	O
this	O
hole	O
convincingly	O
with	O
a	O
copy	O
of	O
the	O
existing	O
background	O
from	O
elsewhere	O
in	O
the	O
image	O
.	O
</s>
<s>
Of	O
these	O
,	O
patch-based	O
texture	O
synthesis	O
or	O
"	O
image	O
quilting	O
"	O
is	O
essentially	O
an	O
automated	O
application	O
of	O
the	O
clone	B-Algorithm
tool	I-Algorithm
,	O
choosing	O
the	O
optimal	O
source	O
area	O
so	O
as	O
to	O
patch	O
over	O
with	O
a	O
minimal	O
seam	O
.	O
</s>
