1. An image capture apparatus performs an optical anti-shake function that reduces an image shake by driving an anti-shake element in a different direction from an optical axis of an imaging optical system in accordance with a detected shake, the image capture apparatus comprising: a determination unit configured to determine, when a plurality of geometric deformation correction processes are electronically applied to a captured image captured by an image sensor, respective reference coordinates for the plurality of geometric deformation correction processes to be a coordinate of an intersection of the optical axis moved by the optical anti-shake function and the image sensor; and a deformation processing unit configured to electronically apply the plurality of geometric deformation correction processes to the captured image using the respective reference coordinates determined by the determination unit and an amount of geometric deformation based on the detected shake.