Patent ID: 11915388
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. An afterimage detection device comprising:
a downscaling circuit that downscales an input image at a preset ratio;
an image accumulation circuit that receives at least one downscale image from the downscaling circuit and accumulates the at least one downscale image;
an afterimage detection circuit that detects an afterimage from an accumulated downscale image obtained by the image accumulation circuit and generates afterimage information; and
a weight applying circuit that receives the afterimage information, calculates a luminance weight of a general region which does not include the afterimage in the input image based on a time parameter, and provides the luminance weight to the downscaling circuit, wherein the downscaling circuit to downscale the general region according to a ratio according to the calculated luminance weight.