<s>
RawTherapee	B-Algorithm
is	O
application	B-Application
software	I-Application
for	O
processing	O
photographs	O
in	O
raw	B-Application
image	I-Application
formats	I-Application
,	O
as	O
created	O
by	O
many	O
digital	O
cameras	O
.	O
</s>
<s>
It	O
comprises	O
a	O
subset	O
of	O
image	B-Application
editing	I-Application
operations	O
specifically	O
aimed	O
at	O
non-destructive	O
post-production	O
of	O
raw	O
photos	O
and	O
is	O
primarily	O
focused	O
on	O
improving	O
a	O
photographer	O
's	O
workflow	O
by	O
facilitating	O
the	O
handling	O
of	O
large	O
numbers	O
of	O
images	O
.	O
</s>
<s>
It	O
is	O
notable	O
for	O
the	O
advanced	O
control	O
it	O
gives	O
the	O
user	O
over	O
the	O
demosaicing	B-Algorithm
and	O
developing	O
process	O
.	O
</s>
<s>
It	O
is	O
cross-platform	B-Operating_System
,	O
with	O
versions	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
macOS	B-Application
and	O
Linux	B-Application
.	O
</s>
<s>
RawTherapee	B-Algorithm
was	O
originally	O
written	O
by	O
Gábor	O
Horváth	O
of	O
Budapest	O
,	O
Hungary	O
,	O
and	O
was	O
re-licensed	O
as	O
free	B-License
and	I-License
open-source	I-License
software	I-License
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
Version	O
3	O
in	O
January	O
2010	O
.	O
</s>
<s>
It	O
is	O
written	O
in	O
C++	B-Language
,	O
using	O
a	O
GTK+	B-Application
front-end	B-Architecture
and	O
a	O
patched	O
version	O
of	O
dcraw	B-Algorithm
for	O
reading	O
raw	B-Application
files	I-Application
.	O
</s>
<s>
RawTherapee	B-Algorithm
involves	O
the	O
concept	O
of	O
non-destructive	O
editing	O
,	O
similar	O
to	O
that	O
of	O
some	O
other	O
raw	O
conversion	O
software	O
.	O
</s>
<s>
RawTherapee	B-Algorithm
supports	O
most	O
raw	B-Application
formats	I-Application
,	O
including	O
Pentax	O
Pixel	O
Shift	O
,	O
Canon	O
Dual-Pixel	O
,	O
and	O
those	O
from	O
Foveon	O
and	O
X-Trans	O
sensors	O
.	O
</s>
<s>
It	O
also	O
supports	O
common	O
non-raw	O
image	O
formats	O
like	O
JPEG	O
,	O
PNG	O
and	O
TIFF	O
as	O
well	O
as	O
high	O
dynamic	O
range	O
,	O
16/24/32	O
-bit	O
raw	O
DNG	B-Application
images	O
.	O
</s>
<s>
RawTherapee	B-Algorithm
uses	O
a	O
patched	O
version	O
of	O
dcraw	B-Algorithm
code	O
to	O
read	O
and	O
parse	O
raw	B-Application
formats	I-Application
,	O
with	O
additional	O
tweaks	O
and	O
constraints	O
to	O
parameters	O
such	O
as	O
white	O
levels	O
and	O
the	O
raw	O
crop	O
area	O
based	O
on	O
in-house	O
measurements	O
.	O
</s>
<s>
Thus	O
,	O
RawTherapee	B-Algorithm
supports	O
all	O
the	O
formats	O
supported	O
by	O
dcraw	B-Algorithm
.	O
</s>
<s>
RawTherapee	B-Algorithm
provides	O
the	O
user	O
with	O
a	O
file	O
browser	O
,	O
a	O
queue	O
,	O
a	O
panel	O
for	O
batch	O
image	O
adjustments	O
,	O
a	O
1:1	O
preview	O
of	O
the	O
embedded	O
JPEG	O
image	O
in	O
the	O
case	O
of	O
raw	B-Application
files	I-Application
,	O
and	O
an	O
image	B-Application
editing	I-Application
tab	O
.	O
</s>
<s>
Bayer	O
demosaicing	B-Algorithm
algorithms	O
:	O
AMaZE	O
,	O
IGV	O
,	O
LMMSE	O
,	O
EAHD	O
,	O
HPHD	O
,	O
VNG4	O
,	O
DCB	O
,	O
AHD	O
,	O
fast	O
or	O
mono	O
,	O
as	O
well	O
as	O
none	O
.	O
</s>
<s>
Raw	B-Application
files	I-Application
from	O
X-Trans	O
sensors	O
have	O
the	O
3-pass	O
,	O
1-pass	O
and	O
fast	O
demosaicing	B-Algorithm
methods	O
at	O
their	O
disposal	O
.	O
</s>
