INTELLINET NETWORK ICC-130 User Manual - Manual (Page 49)

- 49 -
Some Intellinet network cameras are equipped with a motorized iris. In optics,
an iris is a thin opaque structure with an opening (aperture) at its center. The
role of the diaphragm is to stop the passage of light, except for the light
passing through the aperture. “Open” ensures that the iris stays always open,
regardless of the amount of light present. In situations where the light levels
vary over time greatly (i.e. day time – night time – day time, etc.), using
“Auto” is the preferred choice.
WDR stands for Wide Dynamic Range and allows the Intellinet network camera
to capture video in areas with high contrasting objects; e.g., extremely bright
and extremely dark. In a normal camera, if an object in a darker area of the
image frame is next to a bright area — for example, a person in a shadow is
next to an area with bright sunlight — then the person in the shadow would be
very dark to the point of becoming indistinguishable from the background. The
human eye, by contrast, can handle these differences much better. With WDR,
the dynamic range of the camera is greatly enhanced. As a result, you can now
clearly see the person in the shadow while the rest of the frame is still correctly
exposed, just as if it was seen through the human eye. Activate WDR by setting
it to “Auto” and then adjust the level that controls the amount of WDR
enhancement.
Your Intellinet camera features a noise reduction algorithm, which helps reduce
the graining in the video, which occurs under low light conditions. Set this
parameter to “Night Mode” to only activate noise reduction when the camera is
operating in night mode. You can also select “Schedule”, “On” (activates noise
reduction permanently) or “Off” (deactivated noise reduction permanently).