“Dynamic range” means the difference between the largest and the smallest usable signal level. This term is commonly used in audio, electronics, photography and various other fields. In video, like with the human eye, it refers to the limited light range that can be seen in one scene. A lit room will appear dark after spending time in the summer sun; similarly, the outside can be blinding white after spending time in a dark room. Wide Dynamic Range (WDR) provides a broader spectrum of coverage for visibility in both a dark room and outdoor daylight at the same time. By applying this concept to a camera, Wide Dynamic Range means that it can sense and capture both dim and bright light scene details in a single image. This white paper discusses how cameras achieve wide dynamic range image capture, where to use cameras with WDR technology, and how WDR cameras are configured in FortiRecorder. It also provides sample snapshots of WDR pictures from FortiCamera models.
Wide Dynamic Range (WDR) in IP Surveillance Cameras
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