WDR Cameras : What is Wide Dynamic Range?
Filed under: CCTV Articles, CCTV Camera, Quick Overview, Security Camera
In order to fully understand wide dynamic range (WDR) cameras, let’s first define dynamic range. Dynamic range is the difference between the camera sensors maximum and minimum allowed light intensities or, more simply stated, the dark and light portions of the captured image. So a camera with Wide Dynamic Range has a sensor with a higher contrast ratio and allows it the ability to accurately capture clearer images in a wide array of lighting environments.
For instance, WDR stabilizes the contrast of light and shadow and enables the camera to deliver a crisp and usable image in more difficult lighting conditions such as extremely bright, dark, or backlit areas.
It is important to have a good amount of light and the correct exposure if you are to capture clear images with a video surveillance camera. This is important because without it, the images will likely be unusable. Unusable images essentially render your surveillance cameras as useless. This is where WDR camera come in to play.
Unfortunately, not all environments are able to be perfectly lit. Many locations require that cameras be placed in areas with challenging lighting conditions. This could range from a hallway with strong back lighting to a storefront with multiple windows. A camera with wide dynamic range will address these less-than-optimal lighting conditions and help you to find the crisp images that you need to keep your place safe.