<s>
Aurora	B-Application
HDR	I-Application
is	O
photographic	O
software	B-Application
developed	O
by	O
Skylum	B-Application
Software	B-Application
(	O
formerly	O
Macphun	B-Application
)	O
for	O
Mac	B-Application
OS	I-Application
X	I-Application
and	O
Windows	B-Application
.	O
</s>
<s>
It	O
attempted	O
to	O
create	O
a	O
powerful	O
and	O
simple	O
yet	O
fast	O
HDR	O
photo	O
editing	O
software	B-Application
.	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
is	O
a	O
High	O
Dynamic	O
Range	O
(	O
HDR	O
)	O
editing	O
and	O
processing	O
tool	O
released	O
in	O
November	O
2015	O
.	O
</s>
<s>
It	O
was	O
made	O
through	O
a	O
collaboration	O
between	O
Skylum	B-Application
and	O
HDR	O
photographer	O
Trey	O
Ratcliff	O
.	O
</s>
<s>
HDR	O
image	B-Application
editing	I-Application
techniques	O
are	O
designed	O
to	O
overcome	O
difficult	O
lighting	O
situations	O
where	O
highlights	O
and	O
shadows	O
are	O
prevalent	O
in	O
the	O
same	O
image	O
,	O
but	O
have	O
also	O
been	O
used	O
to	O
create	O
highly	O
processed	O
images	O
as	O
well	O
.	O
</s>
<s>
By	O
automatically	O
aligning	O
and	O
merging	O
multiple	O
exposures	O
of	O
photos	O
,	O
Aurora	B-Application
HDR	I-Application
can	O
create	O
a	O
single	O
tone-mapped	B-Language
image	O
.	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
comes	O
in	O
five	O
different	O
versions	O
for	O
two	O
different	O
operating	O
systems	O
.	O
</s>
<s>
Versions	O
,	O
previous	O
and	O
current	O
,	O
include	O
:	O
Aurora	B-Application
HDR	I-Application
(	O
optionally	O
sold	O
on	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
)	O
;	O
Aurora	B-Application
HDR	I-Application
Pro	O
;	O
Aurora	B-Application
HDR	I-Application
Pro	O
+	O
training	O
,	O
Aurora	O
2017	O
;	O
and	O
Aurora	O
2018	O
.	O
</s>
<s>
The	O
software	B-Application
runs	O
as	O
a	O
standalone	O
or	O
as	O
a	O
plug-in	O
to	O
host	O
applications	O
like	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
,	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
Lightroom	I-Operating_System
,	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
Elements	O
,	O
and	O
Apple	B-Operating_System
Aperture	I-Operating_System
.	O
</s>
<s>
In	O
early	O
2016	O
,	O
Aurora	B-Application
HDR	I-Application
was	O
updated	O
with	O
support	O
to	O
run	O
as	O
an	O
editing	O
extension	O
for	O
Apple	B-Application
Photos	I-Application
for	O
Mac	O
.	O
</s>
<s>
In	O
2016	O
Skylum	B-Application
released	O
the	O
next	O
version	O
of	O
Aurora	B-Application
HDR	I-Application
-	O
Aurora	B-Application
HDR	I-Application
2017	O
along	O
with	O
a	O
Windows	B-Application
version	O
.	O
</s>
<s>
In	O
2018	O
Skylum	B-Application
released	O
Aurora	O
2018	O
for	O
Mac	O
and	O
Windows	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
works	O
on	O
single	O
images	O
or	O
multiple	O
exposures	O
,	O
and	O
initial	O
merging	O
options	O
change	O
depending	O
on	O
the	O
number	O
of	O
images	O
loaded	O
.	O
</s>
<s>
If	O
a	O
single	O
image	O
is	O
provided	O
to	O
the	O
software	B-Application
,	O
only	O
the	O
"	O
Chromatic	O
Aberration	O
Reduction	O
"	O
option	O
is	O
available	O
.	O
</s>
<s>
The	O
user	O
interface	O
of	O
Aurora	B-Application
HDR	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
Presets	O
are	O
pre-installed	O
one-click	O
controls	O
that	O
apply	O
a	O
specific	O
"	O
style	O
"	O
to	O
the	O
tone-mapped	B-Language
image	O
.	O
</s>
<s>
This	O
style	O
is	O
created	O
entirely	O
by	O
the	O
use	O
and	O
modification	O
of	O
the	O
Advance	O
tools	O
containing	O
in	O
the	O
software	B-Application
.	O
</s>
<s>
The	O
Preset	O
panel	O
in	O
Aurora	B-Application
HDR	I-Application
Pro	O
contains	O
7	O
separate	O
categories	O
applicable	O
to	O
all	O
types	O
of	O
photos	O
:	O
Trey	O
Ratcliff	O
's	O
Signature	O
presets	O
,	O
Basic	O
,	O
Realistic	O
HDR	O
,	O
Dramatic	O
,	O
Landscape	O
,	O
Indoor	O
,	O
Architecture	O
,	O
each	O
of	O
which	O
contain	O
thumbnail	O
graphics	O
representing	O
several	O
or	O
dozens	O
of	O
styles	O
.	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
comes	O
with	O
an	O
extensive	O
list	O
of	O
tools	O
and	O
functionality	O
designed	O
to	O
help	O
photographers	O
edit	O
their	O
images	O
using	O
HDR	O
techniques	O
.	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
Pro	O
features	O
the	O
ability	O
to	O
create	O
up	O
to	O
9	O
layers	O
(	O
4	O
in	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
version	O
)	O
,	O
and	O
provides	O
brushing	O
and	O
masking	O
functionality	O
common	O
in	O
many	O
image-editing	O
software	B-Application
programs	I-Application
.	O
</s>
<s>
Layers	O
can	O
be	O
automatically	O
loaded	O
with	O
either	O
(	O
a	O
)	O
the	O
previous	O
layer	O
,	O
(	O
b	O
)	O
a	O
custom	O
texture	O
,	O
(	O
c	O
)	O
the	O
original	O
tone-mapped	B-Language
image	O
,	O
or	O
(	O
d	O
)	O
any	O
one	O
of	O
the	O
exposures	O
in	O
the	O
bracketed	O
set	O
.	O
</s>
<s>
An	O
advanced	O
feature	O
of	O
the	O
Pro	O
version	O
of	O
Aurora	B-Application
HDR	I-Application
is	O
to	O
designate	O
a	O
layer	O
as	O
one	O
that	O
contains	O
"	O
Luminosity	O
Masking.	O
"	O
</s>
<s>
Aurora	B-Application
HDR	I-Application
opens	O
a	O
variety	O
of	O
popular	O
image	O
file	O
formats	O
,	O
including	O
RAW	B-Application
camera	O
files	O
that	O
are	O
the	O
native	O
to	O
specific	O
camera	O
manufacturers	O
(	O
e.g.	O
</s>
<s>
The	O
software	B-Application
exports	O
in	O
the	O
following	O
file	O
formats	O
:	O
JPG	O
,	O
PNG	O
,	O
GIF	O
,	O
JPG-2000	O
,	O
TIFF	O
,	O
Photoshop	B-Operating_System
,	O
and	O
PDF	O
,	O
and	O
can	O
also	O
transfer	O
images	O
directly	O
into	O
Skylum	B-Application
's	O
Creative	O
Suite	O
for	O
further	O
editing	O
.	O
</s>
<s>
The	O
software	B-Application
permits	O
sharing	O
to	O
image	O
galleries	O
like	O
500px	O
,	O
Smugmug	O
and	O
Flickr	O
,	O
plus	O
social	O
networks	O
like	O
Facebook	O
and	O
Twitter	O
.	O
</s>
<s>
Additionally	O
Aurora	B-Application
HDR	I-Application
can	O
send	O
images	O
via	O
email	O
or	O
Apple	O
Messages	O
.	O
</s>
