Display device and operation method thereof
AssigneeLG Electronics Inc.
InventorsHyomin KIM, Chanho LEE
Life of this patent
Estimating the term…
Abstract
The present disclosure is to maximize image quality improvement for a region of interest in an image. A display device according to an embodiment of the present disclosure may: extract a region of interest and a detail map from the entire region of an input image; extract one or more sub-maps from the extracted region of interest; generate a merged map by merging the detail map and the one or more sub-maps; generate a blended curve on the basis of a local mapping curve generated on the basis of local region information of each of multiple local regions configuring the entire region and a map gain of the generated merged map; and perform tone mapping of the input image on the basis of the generated blended curve.
Claims15
A display device comprising:
- a display part;
- and
- a control part which extracts a region of interest and a detail map from the entire region of an input image, extracts one or more sub-maps from the extracted region of interest, merges the detail map and the one or more sub-maps to generate a merged map, generates a blended curve based on a local mapping curve generated based on map gain of the generated merged map and local region information of each of a plurality of local regions constituting the entire region, performs tone mapping of the input image based on the generated blended curve, and displays an output image on which the tone mapping is performed on the display part.
A method for operating a display device, comprising:
- a step of extracting a region of interest and a detail map from an entire region of an input image;
- a step of extracting one or more sub-maps from the extracted region of interest;
- a step of generating a merged map by merging the detail map and the one or more sub-maps;
- a step of generating a blended curve based on a local mapping curve generated based on map gain of the generated merged map and local region information of each of a plurality of local regions constituting the entire region;
- and
- a step of performing tone mapping of the input image based on the generated blended curve.
Dependencies are inferred from the claim text.