US 11,889,202 B2
Image processing apparatus, image processing method, and storage medium
Ryoji Arakawa, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 12, 2021, as Appl. No. 17/318,842.
Claims priority of application No. 2020-086871 (JP), filed on May 18, 2020.
Prior Publication US 2021/0360214 A1, Nov. 18, 2021
Int. Cl. H04N 23/88 (2023.01); H04N 9/64 (2023.01); G06N 20/00 (2019.01)
CPC H04N 23/88 (2023.01) [G06N 20/00 (2019.01); H04N 9/643 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
one or more processors configured to function as following units:
a detection unit configured to detect a specific area from a captured image;
a first determination unit configured to determine, based on a color included in the detected specific area, a light source color including a characteristic color by using a learning unit trained in advance by machine learning;
a first calculation unit configured to calculate a first white balance correction value corresponding to the light source color determined by the first determination unit;
a second determination unit configured to determine the light source color based on a color of an area including an area other than the specific area;
a second calculation unit configured to calculate a second white balance correction value corresponding to the light source color determined by the second determination unit; and
a third calculation unit configured to calculate a third white balance correction value based on the first white balance correction value and the second white balance correction value.