| CPC G09G 3/2092 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2340/04 (2013.01)] | 20 Claims |

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1. An electronic device comprising:
a display;
at least one processor including processing circuitry, and
memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to:
obtain an HDR image,
determine a size of a first region in the display, the first region being a region where the HDR image is to be only displayed,
determine a size of a second region in the display, the size of the second region corresponding to a maximum size at which the HDR image is capable of being displayed in the display while maintaining an aspect ratio of the HDR image, wherein the aspect ratio of the HDR image is a ratio of a vertical value of a resolution of the HDR image to a horizontal value of the resolution of the HDR image,
set a brightness range of the display, based on the size of the first region and the size of the second region;
display, using the set brightness range of the display, the HDR image in the first area through the display.
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