The capacity of the camera to capture information in both bright and dark areas of the video is known as wide dynamic range, or WDR. By combining many exposures of the same scene, it produces a final image with balanced brightness and contrast. Because it enables the camera to simultaneously capture dark and bright regions, this is particularly useful while driving through areas with a lot of shadows, such tunnels or underpasses.WDR uses image sensors and a digital signal processor (DSP) to provide uniform lighting to all areas of an image. Each video frame is scanned twice by two sensors in a WDR-capable camera. The first shows the photograph under typical lighting conditions and was taken with a slow shutter speed (to catch more light). In order to get a photo with brilliant light in the backdrop while capturing less light overall, the second can is done quickly. The two scans are combined by the camera to produce a single, balanced, well-lit image.

A location with bright windows and dimly lit interiors. The light from the windows is much brighter than the light from the interior of the walls, and if the dynamic range is not large enough, this is when either the light from the windows is too bright and overexposed (it looks white or the walls are too dark and underexposed (it looks black), which can cause the image to lose detail. The greater the dynamic range, the more you can retain as much information as possible in these highlight and shadow areas.

Which is better? HDR or WDR?

70mai dash cameras with WDR and HDR are both capable features designed to improve video quality, particularly in low light conditions. Although each manufacturer has a different definition, WDR typically refers to a camera's capacity to produce excellent images across a range of lighting circumstances.

An HDR camera (such as 70mai Dash Cam A510) can better highlight darker parts of a picture without overexposing brighter regions, even if WDR can aid with image quality in dynamic lighting situations.