5 Functionality
5.1.4
Decimation (colour cameras)
Decimation reduces the number of pixels in y-direction by skipping rows and in x-direction by
skipping columns. Decimation in colour cameras is slightly different from the monochrome
cameras, because the order of the Bayer pattern must be maintained.
Beginning from the first row, always two rows are read out and then an even number of rows
are skipped, when decimation in y is configured. Beginning from the first column, always two
columns are read out and then an even number of columns are skipped, when decimation in x
is configured. The red rows and columns in Fig. 5.5 are read out and the total number of rows
is the sum of the red rows and the total number of columns is the sum of the red columns.
The number of skipped rows for y decimation d are:
H
skip
= (
d
−
1)
∗
2
The resulting number or rows for Window.H=h:
h
tot
= 2
∗
floor (
h/d
) + min(
h
mod (2
∗
d
)
,
2)
The number of skipped columns for x decimation d are:
W
skip
= (
d
−
1)
∗
2
The resulting number or rows for Window.W=w:
w
tot
= 2
∗
floor (
w/d
) + min(
w
mod (2
∗
d
)
,
2)
The total number of rows can be read by the property
Window.HInterface
.
The total number of columns can be read by the property
Window.WInterface
Decimation
H
skip
W
skip
2
2
2
3
4
3
4
6
6
5
8
8
Table 5.2: Values of
H
skip
and
W
skip
as a function of decimation
Window.H
h
tot
, d=2
h
tot
, d=3
h
tot
, d=4
640
320
214
160
1024
512
342
256
Table 5.3: Examples of total rows in colour decimation
Window.W
w
tot
, d=2
w
tot
, d=4
w
tot
, d=8
640
320
160
80
1280
640
320
160
Table 5.4: Examples of total clumns in colour decimation
5.1.5
2x2 Binning
The 2x2 binning in monochrome and NIR cameras combine 2 adjacent pixels horizontally and
vertically into one pixel by performing an addition. It reduces the number of pixels by 2 in x-
26
Summary of Contents for CameraLink MV1-D1280
Page 1: ...User Manual Photonfocus MV1 D1280 CameraLink Series CMOS Area Scan Camera MAN058 05 2013 V1 1...
Page 2: ......
Page 4: ...2...
Page 7: ...B Revision History 81 CONTENTS 5...
Page 8: ...CONTENTS 6...
Page 16: ...3 How to get started CameraLink Figure 3 4 PFRemote start window 14...
Page 24: ...4 Product Specification 22...
Page 72: ...8 Graphical User Interface GUI 70...
Page 74: ...9 Mechanical Considerations 72...
Page 76: ...10 Warranty 74...
Page 78: ...11 References 76...
Page 82: ...A Pinouts 80...
