BLC selectively amplifies parts of the image to compensate for large contrast differences when part of the image is very brightly lit, e.g. person in a sunlit doorway.

This is a feature of security cameras that automatically adjusts the image to compensate for bright light to give more detail on the darker areas of the image. For example, use is to focus on the deta [..]

Electronically compensates for high background lighting to give detail which would normally be silhouetted.

In situations in which there is a bright light behind the subject of an image, the bright light would normally saturate the image, causing the subject to be seen in silhouette. The BLC circuitry adjus [..]

A feature on newer CCD cameras which electronically compensates for high background lighting to give detail.

This feature allows the camera to adjust the exposure of the entire image to properly show the person in the forefront.

A feature on newer CCD cameras which electronically compensates for high background lighting to give detail which would normally be silhouetted.

An automatic function in cameras that gives higher photometric weight to objects in the center of the field of view than to those in the periphery. It increases local contrast to help avoid silhouetti [..]