Patent ID: 11922607
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A thumbnail image generating method of an electronic device, the method comprising:
identifying an event for displaying a thumbnail image of image content on a display of the electronic device before outputting the image content, the thumbnail image corresponding to at least one frame of image content;
based on identifying the event, displaying the thumbnail image,
wherein the display of the thumbnail image comprises:
determining whether the image content is a high dynamic range (HDR) image;
based on determining that the image content is the HDR image, obtaining maximum brightness information of the image content based on metadata of the image content, determining a normalizing factor based on the maximum brightness information, performing tone mapping with respect to the at least one frame of the image content based on the normalizing factor, and controlling the display of the electronic device to output the thumbnail image using the at least one frame after the tone mapping is performed with respect to the at least one frame; and
based on determining that the image content is not the HDR image, control the display to output the thumbnail image using the at least one frame of the image content without performing the tone mapping based on the normalizing factor, and

wherein the performing of the tone mapping includes:
determining whether the maximum brightness information satisfies a first condition;
determining the normalizing factor according to a first operation based on the maximum brightness information being determined to satisfy the first condition or according to a second operation different from the first operation based on the maximum brightness information being determined to not satisfy the first condition, and

wherein the first operation comprises determining the normalizing factor based on the maximum brightness information.