Patent ID: 8766902

Claim:
A system, comprising one or more integrated circuits, wherein the one or more integrated circuits are configured to: receive video image data; calculate a brightness metric of the video image data; determine an intensity setting of a light source based at least in part on the brightness metric, wherein the light source illuminates a display that is configured to display a visual representation of the video image data; scale brightness values of the video image data based at least in part on the brightness metric; identify one or more regions in the video image data in which the scaling of the brightness values results in a visual artifact associated with reduced contrast, wherein each region of the one or more regions contains more than one percent of pixels in a frame of the video image and comprises less than an entirety of the video image data; and reduce the scaling of the brightness values in the one or more regions without adjusting the video image data outside the regions to, at least partially, restore the contrast, thereby reducing the visual artifact.