
But
just as the CCTV security camera is about to capture his face, there is a
flashing glare from the windshield of a passing car and all that the camera
records is a blurred shadow.
This
is a common problem with normal CCTV cameras that are installed in places that
have varying light conditions.
The
problem is that in normal CCTV Cameras the sensor is not equipped to react to
these conditions and hence, on more occassions than not, the result is a low
quality or blurred image.
WDR
or Wide Dynamic Range CCTV cameras on the other hand can capture perfect images
in all kinds of lighting conditions. In simple terms a WDR CCTV Camera is
capable of displaying both the lightest and the darkest elements in a single
image without missing out on detail.
How
it works?
If
you have a normal indoor CCTV camera that is pointed towards the door or the
window during daytime, then there would be an extremely bright backlight due to
the incoming daylight which results in a washed out image.
Some
CCTV security cameras were equipped with a technology called BLC or Back Light
Compensation which aimed to solve the problem.
But
WDR CCTV Cameras have two CCD (charge coupled devices) which takes multiple
captures of a single image to produce a high quality image sans blurring.
Where
can you use it?
A
WDR CCTV Camera can be used in any place where the lighting conditions are not
constant. They can be used outdoors in parking lots, streets, they can be used
indoors if you wish to point your CCTV towards the door, it can be used in
ATMs, it can be used inside the closet also.
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WDR are the only cctv cameras to work equivalent to HDR mode of phone cameras.
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