Cheetah KAC Camera User Manual | Camera Link (CLF) Interface
October 1, 2019
Page
77
of
135
Rev 7.2
4.7.1.8 Video Amplifier
Video Amplifier allows the user to adjust the Analog and Digital Gains and black level.
Manual entry and sliders are available for adjusting the individual parameters.
Figure 41: Video Amp parameter window.
Analog Gain:
The user can set the desired analog gain using radio buttons. For
digitization levels of 8 or 10-bits, analog gain levels of 1x, 2x, 4x and 8x.can be
selected. For 12-bit digitization level, analog gain levels of 1x, 2x and 4x are
supported. Analog gain should always be applied before digital gain.
Digital Gain:
The user can set the digital gain from 1 to 15.88x with 128 individual
steps. (Step size varies with gain setting with finer steps at lower gain settings)
Black Level:
The digital offset (0 to 8192, 1 step increment) via the slider or by
entering the desired value. Digital offset is applied after gain.
4.7.1.9 Wide Dynamic Range (WDR)
Wide Dynamic Range mode is available in global shutter mode only and allows the user to
compress bright regions of the image into the available output range. The camera allows
the user to select from three user defined exposures depending upon the brightness of
each individual pixel.
Figure 42: Wide Dynamic Range Controls.
WDR:
Wide Dynamic Range (WDR) [also Extended Dynamic Range] can be enabled or disabled
using the Enable check box.
The overall exposure time (Texp) is set using the Exposure control slider (See Exposure
Controls section). Pixels in the dark regions of the image area will collect charge through-
out the entire exposure time.
