<s>
Sterling	B-Algorithm
is	O
a	O
fractal-generating	O
computer	B-Application
program	I-Application
written	O
in	O
the	O
C	B-Language
programming	I-Language
language	I-Language
in	O
1999	O
for	O
Microsoft	B-Application
Windows	I-Application
by	O
Stephen	O
C	B-Language
.	O
Ferguson	O
.	O
</s>
<s>
Sterling	B-Algorithm
was	O
initially	O
released	O
as	O
freeware	B-License
but	O
is	O
not	O
free	O
now	O
.	O
</s>
<s>
Sterling2	O
is	O
a	O
freeware	B-License
version	O
of	O
Sterling	B-Algorithm
with	O
different	O
algorithms	O
.	O
</s>
<s>
Apart	O
from	O
the	O
name	O
(	O
which	O
shows	O
as	O
sterlingwar2	O
in	O
the	O
title	O
bar	O
and	O
on	O
the	O
About	O
screen	O
)	O
,	O
the	O
program	O
looks	O
just	O
like	O
the	O
original	O
Sterling	B-Algorithm
.	O
</s>
<s>
The	O
only	O
internals	O
that	O
are	O
different	O
are	O
the	O
50	O
formulae	O
for	O
fractal	B-Application
generation	O
.	O
</s>
<s>
Parameter	O
files	O
made	O
by	O
Sterling	B-Algorithm
can	O
be	O
used	O
in	O
Sterling2	O
and	O
vice	O
versa	O
,	O
though	O
they	O
will	O
draw	O
different	O
images	O
.	O
</s>
<s>
Sterling	B-Algorithm
is	O
based	O
on	O
the	O
notion	O
that	O
one	O
way	O
to	O
generate	O
interesting	O
fractal	B-Application
images	O
is	O
by	O
using	O
elaborate	O
color	O
filters	O
and	O
shading	O
.	O
</s>
<s>
In	O
many	O
images	O
,	O
the	O
main	O
interest	O
lies	O
in	O
the	O
filters	O
rather	O
than	O
the	O
actual	O
fractal	B-Application
boundaries	O
themselves	O
,	O
as	O
in	O
traditional	O
fractal-generating	O
programs	O
.	O
</s>
<s>
The	O
fractal	B-Application
merely	O
serves	O
as	O
a	O
seeding	O
function	O
to	O
the	O
coloring	O
algorithms	O
and	O
filters	O
.	O
</s>
<s>
A	O
feature	O
of	O
Sterling	B-Algorithm
is	O
the	O
richness	O
of	O
the	O
renders	O
.	O
</s>
<s>
Sterling	B-Algorithm
has	O
a	O
simple	O
GUI	B-Application
interface	O
with	O
a	O
limited	O
number	O
of	O
functions	O
.	O
</s>
<s>
The	O
program	O
saves	O
files	O
as	O
JPEG	O
,	O
BMP	B-Device
or	O
one	O
of	O
six	O
other	O
formats	O
.	O
</s>
<s>
It	O
draws	O
in	O
Julia	O
mode	O
,	O
allows	O
inside-out	O
rendering	O
and	O
does	O
anti-aliasing	B-Algorithm
.	O
</s>
<s>
The	O
Sterling2	O
ZIP	B-General_Concept
file	I-General_Concept
(	O
436	O
KB	O
)	O
contains	O
brief	O
instructions	O
.	O
</s>
<s>
In	O
2018	O
,	O
the	O
original	O
code	O
for	O
sterling	B-Algorithm
was	O
released	O
under	O
the	O
GPLv3	O
.	O
</s>
