Phytec FireWire-CAM-001, Manual

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FireWire-CAM-001 / 002
48 
PHYTEC Meßtechnik GmbH 2005 L-661e_1
Gain/Contrast (DCAM): The amplification gain (also called contrast)
influences the electrical output signal of the CCD. This is an electrical
amplification of the image signal. More details are provided in the
shutter description above.
Offset/Brightness (DCAM): The offset (also called brightness)
influences the direct voltage offset of the CCD output signal directly.
Visually this is perceived to be an adjustment of the picture
brightness. As opposed to the contrast setting, the brightness setting
does not change the relationship of dark to light.
This parameter can be set manually or automatically.
Sharpness (DCAM): The sharpness setting changes the sharpness of
the video picture.
This mechanism can be used to compensate for lowpass effects (that
may result from spacial color interpolation) (see section 3.5). You can
shut off this function if it is not required.
Gamma (DCAM): If gamma correction is switched on the camera
will output the gray levels adapted to the non-linear characterstics of
picture tube based monitors.
With activated gamma correction the image looks richer in contrast –
expecially with monochrome cameras.
Saturation (DCAM, only with FireWire-CAM-002): This parameter
allows the manual setting of color saturation from black and white to
extremely saturated colors. This allows the picture display to be
adapted to color sensitivity or the picture environment.
You can shut off this function if it is not required.
White Balance (DCAM, only with FireWire-CAM-002): U/R
(red/green) and V/B (green/blue) influence the red and blue portions
of the picture. You can therefore set the camera to the applied light to
achieve a color-neutral impression. In most cases the automatic white
balance is the preferable setting. For color evaluation tasks, the
automatic white balance must be shut off.