| 主权项 |
1. An exposure controller for controlling an exposure of a plurality of pixels of an image sensor, the image sensor providing a first image having a first exposure and a second image having a second exposure, the first image and the second image being in a time sequence of images captured by the image sensor, the exposure controller being arranged to:
set the first exposure in dependence on pixel intensities of one of the time sequence of images; determine pixel populations in a shadows zone, a midtones zone and a highlights zone of one of the time sequence of images; calculate a factor in dependence at least in part on the pixel populations of the shadows zone and the highlights zone relative to the pixel population of the midtones zone; and set the second exposure in dependence on the factor and the first exposure. |
