Users Manual – svs4021, svs2020,svs2050, svs2051, svs1020, svs1050, svs285, svs340, svs625
p. 26
Last Update 20.07.2009
Bayer method (Disabled, Nearest neighbor, Simple, Bilinear, HQ Linear, Edge
Sense, Gray)
Factors for white balance (Red, Green, Blue)
“Balance” button for performing automatic white balance
“Equalize” button for setting all colors to 100%
Freeze (display switched off while acquisition continuous, for test purposes)
In addition the number of transferred frames is displayed as well as the number
of eventually lost frames. A frame loss may happen for example in case of an
insufficient network bandwidth or if the network connection gets interrupted for
a short time or in case of other network failures.
Further the number of resent network packets is displayed. The second number
is the last resent packet number and the first number indicates the total
number of resent packets.
5.3 Gain
The gain panel allows for adjusting gain and autogain (planned) with the
following controls:
The default gain setting is “0” dB. You may change the gain up to 6 dB (or
higher) in steps of 1/10
th
. Note that the dark offset will increase and dynamic
range will not be improved. Please note that noise also is amplified. For good
image quality do not increase gain more than 6 dB;
higher Gain is possible
but not specified!
For “F” version of svs1020,1050,2020 2050,2150 and 4021 only:
Please note that the CCD is used with 2 outputs.
Therefore there are a
“right” and a “left” image half. If you use the slider both channels are amplified.
However depending on the amplifications there might be different values
necessary in order to make both channels equal.
Fine tuning in “Gain Value”
is necessary.
It is still possible to have 1-2 counts difference between both
image halfs.
This is NOT a camera problem and must be adjusted by an
experienced user. Same is true for the offset.
Gain (0…..18 dB) (The edit field allows for an extended gain upto about +36 dB, dependent on
the camera’s capabilities)
Autogain function can be enabled to avoid manual tuning. Note that
continuous tap balancing needs a few frames to adjust !!
5.4 Offset
Dark level offset adjustment is possible. When 8 Bit are transmitted it can be
changed from 0 to 255. Please note that factory adjustment is optimized for
S/N ratio and sensitivity. You may lose dynamic range. Alter only if you operate
at high temperatures like +40 °C. It can be altered for each channel separately
(for 2 tap Kodak CCDs).
5.5 Auto tap balance
Advanced imaging sensors offer a two-tap operation for getting to higher frame
rates. A left and a right tap as on the following image have to be perfectly