Patent ID: 8648781
Filing Date: 2014-02-11
Classification: G09G

Abstract:
1. A system, comprising one or more integrated circuits, wherein the one or more integrated circuits are configured to: receive video image data; calculate brightness metrics of the video image data; determine an intensity setting of a light source that illuminates a display that is configured to display a visual representation of video image data, wherein the determination is based at least in part on a first or second brightness metric, or both, of the brightness metrics of the video image data; scale brightness values of the video image data based at least in part on the first or second brightness metric, or both, of the video image data; change the intensity setting and scale the brightness values when there is a discontinuity between the first brightness metric and the second brightness metric of the brightness metrics of the video data, wherein the first and second brightness metrics correspond to two adjacent video images in the video image data, respectively; and apply a portion of changes in the intensity setting and a corresponding portion of the scaling of the brightness values on an image-by-image basis in the video image data using a temporal filter when an initial difference between the first and second brightness metrics is less than a predetermined value unless the discontinuity between the first and second brightness metrics is greater than the predetermined value, in which case the temporal filter is turned off when the discontinuity is greater than the predetermined value.