US 12,114,079 B2
Electronic device for adjusting exposure value of image including face
Hyunsik Yu, Suwon-si (KR); Yunsik Kim, Suwon-si (KR); Junghoon Kim, Suwon-si (KR); Yeongjune Won, Suwon-si (KR); Heungsu Jeon, Suwon-si (KR); Sungoh Kim, Suwon-si (KR); Jiyoon Park, Suwon-si (KR); Wonseok Song, Suwon-si (KR); and Jaemyung Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 31, 2022, as Appl. No. 17/649,388.
Application 17/649,388 is a continuation of application No. PCT/KR2020/008119, filed on Jun. 24, 2020.
Claims priority of application No. 10-2019-0095546 (KR), filed on Aug. 6, 2019.
Prior Publication US 2022/0159168 A1, May 19, 2022
Int. Cl. H04N 23/741 (2023.01); G06T 5/50 (2006.01); G06T 5/90 (2024.01); G06V 40/16 (2022.01); H04N 23/51 (2023.01); H04N 23/53 (2023.01); H04N 23/611 (2023.01); H04N 23/71 (2023.01); H04N 23/73 (2023.01); H04N 23/743 (2023.01)
CPC H04N 23/741 (2023.01) [G06T 5/50 (2013.01); G06T 5/90 (2024.01); G06V 40/16 (2022.01); H04N 23/51 (2023.01); H04N 23/53 (2023.01); H04N 23/611 (2023.01); H04N 23/71 (2023.01); H04N 23/73 (2023.01); H04N 23/743 (2023.01); G06T 2207/20208 (2013.01); G06T 2207/20221 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a housing including a first surface facing in a first direction and a second surface facing in a second direction opposite to the first surface;
a display exposed in the first direction through the first surface of the housing;
a camera at least partially exposed in the first direction through the first surface of the housing or at least partially exposed in the second direction through the second surface of the housing to photograph an image; and
a processor operatively coupled to the display and the camera, wherein the processor is configured to:
recognize a face among a plurality of preview images,
set a first exposure value of a first image that is one of the plurality of preview images to a basic exposure value among the plurality of preview images such that a first brightness falls within a specified brightness range, wherein the first brightness is of a first area including the face,
extract the first brightness and a second brightness, wherein the second brightness is of a second area excluding the first area,
when a difference between the first brightness and the second brightness is greater than or equal to a specified difference value, adjust at least one of a second exposure value of a second image or a third exposure value of a third image, wherein the second image and the third image are bracketing images, wherein the second exposure value corresponding to the second image is smaller than the first exposure value of the first image, and wherein the third exposure value corresponding to the third image is greater than the first exposure value of the first image,
generate a high dynamic range (HDR) image by synthesizing at least one of a bracketing image including the first exposure value, the second image or the third image, and
display the generated high dynamic range image on the display.