Pike
Technical
Manual
V5.2.3
157
Description of the data path
Description
of
the
data
path
Packed 12-Bit Mode
All
Pike
cameras
have
the
so-called
Packed
12-Bit
Mode.
This
means:
two
12-
bit
pixel
values
are
packed
into
3
bytes
instead
of
4
bytes.
The
color
codings
are
implemented
via
Vendor
Unique
Color_Coding
according
to
IIDC
V1.31:
COLOR_CODING_INQ
@
024h
to
033h,
IDs=128-255)
See
High SNR mode (High Signal Noise Ratio)
In
this
mode
the
camera
grabs
and
averages
a
set
number
of
images
and
outputs
one
image
with
the
same
bit
depth
and
the
same
brightness.
This
means
that
the
camera
will
output
an
8-bit
averaged
image
when
an
8-bit
image
format
is
selected
(although
the
internal
calculations
are
done
with
14-
bit).
Because
of
the
fact
that
normally
uncorrelated
(photon-,
amplifier-)
noise
dominates
over
correlated
noise
(fixed
pattern
noise),
adding
two
images
will
double
(6
dB)
the
gray
levels
but
only
increase
the
noise
levels
by
2
(3
dB).
B/w cameras
Color cameras
Packed
12-Bit
MONO
camera
mode
SmartView:
MONO12
Packed
12-Bit
RAW
camera
mode
SmartView:
RAW12
Mono
and
raw
mode
have
the
same
implementation.
Table 60:
Packed
12-Bit
Mode
Note
For
data
block
packet
format
see
For
data
structure
see
100.
Mode
Color_Coding
ID
Packed
12-Bit
MONO
ECCID_MONO12
ID=132
Packed
12-Bit
RAW
ECCID_RAW12
ID=136
Table 61:
Packed
12-Bit
Mode
: color coding
Note
Configuration
To
configure
this
feature
in
an
advanced
register,
see
314.