<s>
Enblend-Enfuse	O
are	O
open	B-License
source	I-License
console	B-Device
application	I-Device
created	O
by	O
Andrew	O
Mihal	O
and	O
mostly	O
maintained	O
by	O
Hugin	B-Application
developers	O
.	O
</s>
<s>
It	O
consists	O
of	O
Enblend	B-Language
,	O
an	O
image	B-Algorithm
blending	I-Algorithm
tool	O
useful	O
for	O
creating	O
panoramas	B-Application
,	O
and	O
Enfuse	B-Language
,	O
an	O
exposure	B-Algorithm
fusion	I-Algorithm
(	O
HDR	O
merging	O
)	O
and	O
focus	B-Algorithm
stacking	I-Algorithm
tool	O
that	O
combines	O
the	O
depth	O
of	O
field	O
and	O
dynamic	O
range	O
from	O
multiple	O
images	O
of	O
the	O
same	O
scene	O
(	O
bracketing	O
)	O
.	O
</s>
<s>
Enblend-enfuse	O
accepts	O
images	O
already	O
aligned	O
by	O
other	O
methods	O
.	O
</s>
<s>
Enblend	B-Language
uses	O
the	O
Burt-Adelson	O
spline	O
for	O
blending	O
.	O
</s>
<s>
Enfuse	B-Language
uses	O
the	O
Mertens-Kautz-Van	O
Reeth	O
(	O
MKVr	O
)	O
approach	O
to	O
exposure	B-Algorithm
fusion	I-Algorithm
,	O
which	O
does	O
not	O
require	O
reconstructing	O
an	O
HDR	O
intermediate	O
.	O
</s>
<s>
Enblend	B-Language
extends	O
the	O
estimate	O
with	O
a	O
fourth	O
term	O
of	O
information	O
entropy	O
,	O
and	O
allows	O
the	O
user	O
to	O
decide	O
the	O
weights	O
of	O
each	O
quality	O
estimator	O
as	O
well	O
as	O
specific	O
implementations	O
of	O
the	O
estimators	O
.	O
</s>
<s>
For	O
example	O
,	O
a	O
basic	O
focus	B-Algorithm
stack	I-Algorithm
is	O
combined	O
in	O
Enfuse	B-Language
by	O
having	O
the	O
quality	O
estimator	O
only	O
consider	O
contrast	O
,	O
and	O
by	O
having	O
the	O
MKVr	O
blending	O
only	O
use	O
the	O
single	O
best-scoring	O
pixel	O
.	O
</s>
<s>
Enfuse	B-Language
is	O
used	O
in	O
a	O
number	O
of	O
other	O
tools	O
:	O
</s>
<s>
Hugin	B-Application
,	O
an	O
open-source	B-License
panorama	B-Application
tool	O
,	O
uses	O
Enblend-Enfuse	O
for	O
blending	O
and	O
HDR	O
handling	O
.	O
</s>
<s>
Hugin	B-Application
provides	O
align_image_stack	O
,	O
which	O
aligns	O
images	O
so	O
that	O
Enfuse	B-Language
can	O
process	O
them	O
.	O
</s>
<s>
EnfuseGUI	O
,	O
an	O
open	B-License
source	I-License
multi-processor	O
GUI	O
for	O
enfuse	B-Language
mainly	O
focused	O
on	O
HDR	O
merging	O
.	O
</s>
<s>
MacroFusion	O
,	O
another	O
open	B-License
source	I-License
GUI	O
for	O
enfuse	B-Language
.	O
</s>
<s>
,	O
another	O
Windows	O
GUI	O
for	O
Enfuse	B-Language
,	O
with	O
a	O
focus	O
on	O
simplicity	O
.	O
</s>
