公开(公告)号：US20230127327A1

公开(公告)日：2023-04-27

申请号：US17566448

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman ABDELHAMED ,  Luxi Zhao ,  Michael Scott Brown

IPC: G06T7/90 ,  G06V10/56 ,  G06T7/11 ,  G06T11/00 ,  G06T5/00 ,  G06T5/20

Abstract: A method is provided. The method includes receiving an input image, extracting at least one feature from the input image, determining at least one local tone curve for a portion of the input image based on the extracted at least one feature, the portion of the input image being less than an overall area of the input image, and generating a toned image based on the at least one local tone curve.

公开(公告)号：US20240029308A1

公开(公告)日：2024-01-25

申请号：US18110032

申请日：2023-02-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman ABDELHAMED ,  Michael Scott BROWN ,  Abhijith PUNNAPPURATH ,  Luxi ZHAO

IPC: G06T7/90

CPC classification number: G06T7/90 ,  G06T2207/10024 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A method for processing image data may include: obtaining a raw input image that is captured under an input illumination; obtaining a target illumination from a user input; obtaining an intermediate image having colors captured under a reference illumination, from the raw input image, based on a first color transform that maps the input illumination to the reference illumination in an illumination dataset of raw sensor images that are captured under a plurality of different illuminations; and obtaining an output image having colors captured under the target illumination, from the intermediate image, based on a second color transform that maps the reference illumination in the illumination dataset to the target illumination.

公开(公告)号：US20230156342A1

公开(公告)日：2023-05-18

申请号：US17566425

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdullah ABUOLAIM ,  Abhijith PUNNAPPURATH ,  Abdelrahman ABDELHAMED ,  Michael Scott BROWN ,  Aleksai LEVINSHTEIN

IPC: H04N5/235 ,  H04N5/357

CPC classification number: H04N5/2353 ,  H04N5/2354 ,  H04N5/357

Abstract: A method of generating a low-light image is provided. The method includes receiving a raw image, removing an amount of first illumination from the raw image, applying a low exposure condition to the raw image having the amount of first illumination removed, and applying an amount of low-light illumination to the raw image having the applied low exposure condition.

公开(公告)号：US20230188690A1

公开(公告)日：2023-06-15

申请号：US18105660

申请日：2023-02-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman ABDELHAMED ,  Abhijith Punnappurath ,  Michael Scott Brown

IPC: H04N9/73 ,  G06T3/40 ,  G06T7/90 ,  G06V10/141 ,  G06V10/24 ,  G06V10/56 ,  G06V10/82

CPC classification number: H04N9/73 ,  G06T3/40 ,  G06T7/90 ,  G06V10/141 ,  G06V10/24 ,  G06V10/56 ,  G06V10/82 ,  G06T2207/10024 ,  G06T2207/20132

Abstract: A method for processing image data may include: obtaining a first image and a second image that capture a same scene in different views, from a first camera and a second camera, respectively; spatially aligning the first image with the second image; obtaining a color transformation matrix that maps the first image to the second image based on color values of the first image and the second image; obtaining an estimated illuminant color from an output of a neural network by inputting the color transformation matrix to the neural network, wherein the neural network is trained based on a pair of reference images of a same reference scene with a color rendition chart that are captured by different cameras having different spectral sensitivities; and performing a white balance correction on the first image based on the estimated illuminant color to output a corrected first image.