US 12,114,109 B2
Image color adjustment method and apparatus and unmanned aerial vehicle
Defei Jiang, Guangdong (CN)
Assigned to AUTEL ROBOTICS CO., LTD., Guangdong (CN)
Filed by AUTEL ROBOTICS CO., LTD., Guangdong (CN)
Filed on Nov. 15, 2021, as Appl. No. 17/526,138.
Application 17/526,138 is a continuation of application No. PCT/CN2020/090268, filed on May 14, 2020.
Claims priority of application No. 201910403038.6 (CN), filed on May 15, 2019.
Prior Publication US 2022/0078389 A1, Mar. 10, 2022
Int. Cl. H04N 9/77 (2006.01); B64C 39/02 (2023.01); B64D 47/08 (2006.01); B64U 10/13 (2023.01); B64U 101/30 (2023.01); H04N 9/68 (2023.01)
CPC H04N 9/77 (2013.01) [B64C 39/024 (2013.01); B64D 47/08 (2013.01); H04N 9/68 (2013.01); B64U 10/13 (2023.01); B64U 2101/30 (2023.01)] 21 Claims
OG exemplary drawing
 
1. An image color adjustment method, applicable to an image collection device of an unmanned aerial vehicle (UAV), the method comprising:
determining a current photographing parameter of the image collection device during collection of a to-be-processed image, wherein the current photographing parameter comprises a current exposure and a current color temperature;
selecting, according to the current exposure and the current color temperature, an optimal color channel gain matching the current exposure and the current color temperature; and
adjusting a color of the to-be-processed image according to the optimal color channel gain;
wherein the selecting, according to the current exposure and the current color temperature, an optimal color channel gain matching the current exposure and the current color temperature further comprises:
determining, as a target color temperature index interval, a candidate color temperature index interval comprising the current color temperature, wherein the candidate color temperature index interval corresponds to at least two candidate exposures, and each of the at least two candidate exposures corresponds to one candidate color channel gain;
determining, as a target exposure, a candidate exposure matching the current exposure from the at least two candidate exposures corresponding to the target color temperature index interval; and
selecting, as the optimal color channel gain, a candidate color channel gain corresponding to the target exposure.