Shadow correction method and device and computer readable storage medium

• Main Authors: DU QINGYU, ZHANG YUNFEI, YUAN KAIKAI, ZHANG QINHAI, XI SHENGKUI, XUE CHAO
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention provides a shadow correction method and device and a computer readable storage medium, belongs to the technical field of image processing, and solves the problem that the correction effect of an existing shadow correction method on zoom equipment is poor. The shadow correction method is applied to a zoom camera, and comprises the following steps: acquiring a plurality of images under different zoom times, and carrying out numerical calibration according to the shadow degrees of the plurality of images to obtain shadow values of the plurality of images; selecting the image with the maximum shadow value as a target image, and performing shadow correction on the target image to obtain a correction gain table of the target image; on the basis of the correction gain table of the target image, according to the relation between the shadow value of the target image and the shadow values of the multiple images under the different zoom times, the correction gain table of each image under the different zoo