US 12,015,883 B2
Method and apparatus with color conversion
Yang Ho Cho, Seongnam-si (KR); Geonwoo Kim, Suwon-si (KR); Sung Kwang Cho, Seoul (KR); and Dong Kyung Nam, Yongin-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 27, 2022, as Appl. No. 17/826,906.
Claims priority of application No. 10-2021-0159217 (KR), filed on Nov. 18, 2021.
Prior Publication US 2023/0156168 A1, May 18, 2023
Int. Cl. H04N 23/84 (2023.01); H04N 9/67 (2023.01); H04N 9/79 (2006.01); H04N 23/88 (2023.01)
CPC H04N 9/67 (2013.01) [H04N 9/7908 (2013.01); H04N 23/84 (2023.01); H04N 23/88 (2023.01)] 25 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an image sensor comprising a color filter having a plurality of color channels;
a memory storing a plurality of color conversion matrices and instructions; and
a processor configured to:
obtain noise information of a color image captured by the image sensor;
select a target matrix from among the plurality of the color conversion matrices based on whether the obtained noise information meets a threshold; and
generate a color converted image by applying the selected target matrix to the color image,
wherein the noise information comprises any one or any combination of any two or more of a noise scale representing variation between raw color values of pixels in the color image, an exposure time corresponding to the color image, a focal number (f-number) of a camera including the image sensor, an International Organization for Standardization (ISO) value of the camera, and a white balance gain value applied to the color data used to generate the color image.