Pike
Technical
Manual
V5.2.3
300
Configuration of the camera
Configuration
of
the
camera
Loading a look-up table into the camera
Loading
a
look-up
table
into
the
camera
is
done
through
the
GPDATA_BUFFER.
Because
the
size
of
the
GPDATA_BUFFER
is
smaller
than
a
complete
look-up
table
the
data
must
be
written
in
multiple
steps.
To
load
a
lookup
table
into
the
camera:
1.
Query
the
limits
and
ranges
by
reading
LUT_INFO
and
GPDATA_INFO.
2.
Set
EnableMemWR
to
true
(1).
3.
Set
AccessLutNo
to
the
desired
number.
4.
Set
AddrOffset
to
0.
5.
Write
n
lookup
table
data
bytes
to
GPDATA_BUFFER
(n
might
be
lower
than
the
size
of
the
GPDATA_BUFFER;
AddrOffset
is
automatically
adjusted
inside
the
camera).
6.
Repeat
step
5
until
all
data
is
written
into
the
camera.
7.
Set
EnableMemWR
to
false
(0).
Shading correction
Owing
to
technical
circumstances,
the
interaction
of
recorded
objects
with
one
another,
optical
effects
and
lighting
non-homogeneities
may
occur
in
the
images.
Because
these
effects
are
normally
not
desired,
they
should
be
eliminated
as
far
as
possible
in
subsequent
image
editing.
The
camera
has
automatic
shading
correction
to
do
this.
Provided
that
a
shading
image
is
present
in
the
camera,
the
on/off
bit
can
be
used
to
enable
shading
correction.
The
on/off
and
ShowImage
bits
must
be
set
for
saved
shading
images
to
be
displayed.
Note
Pike
cameras
have
the
gamma
feature
implemented
via
a
built-in
look-up
table.
Therefore
you
can
not
use
gamma
and
your
own
look-up
table
at
the
same
time.
Nevertheless
you
may
combine
a
gamma
look-up
table
into
your
own
look-up
table.
Note
When
using
the
LUT
feature
and
the
gamma
feature
pay
attention
to
the
following:
•
gamma
ON
look-up
table
is
switched
ON
also
•
gamma
OFF
look-up
table
is
switched
OFF
also
•
look-up
table
OFF
gamma
is
switched
OFF
also
•
look-up
table
ON
gamma
is
switched
OFF
