Pike
Technical
Manual
V5.2.3
128
Description of the data path
Description
of
the
data
path
The
address
lines
of
the
RAM
are
connected
to
the
incoming
digital
data,
these
in
turn
point
to
the
values
of
functions
which
are
calculated
offline,
e.g.
with
a
spreadsheet
program.
This
function
needs
to
be
loaded
into
the
camera's
RAM
before
use.
One
example
of
using
an
LUT
is
the
gamma
LUT:
There
are
two
gamma
LUTs
(gamma=0.7
and
gamma=0.45)
Output
=
(Input)
0.7
and
Output
=
(Input)
0.45
These
two
gamma
LUTs
are
used
with
all
Pike
models.
Gamma
is
known
as
compensation
for
the
nonlinear
brightness
response
of
many
displays
e.g.
CRT
monitors.
The
look-up
table
converts
the
incoming
14 bit
from
the
digitizer
to
outgoing
up
to
14-bit
.
Figure 49: LUTs with gamma=0.45, gamma=0.7
8000
10000
12000
14000
16000
O
u
tput
Output = f (Input)
Pike, gamma=0.45
Pike, gamma=0.7
0
2000
4000
6000
0
2000
4000
6000
8000
10000
12000
14000
16000
Input
