An image processing apparatus includes a first acquisition unit configured to acquire an imaging angle of view at which an input image is captured, a second acquisition unit configured to acquire display system information indicating, in a display system including a display portion, a display angle, which is a visual angle at which the display portion is viewed from a viewpoint position, and a generation unit configured to, using a correspondence relationship between a projection plane and the display portion in a virtual space based on the imaging angle of view and the display system information, generate a display image to be displayed on the display portion.