An image processing device includes: an acquisition unit that acquires an image by imaging surroundings of a vehicle; a generation unit that projects the image onto a three-dimensional projection plane including the vehicle at a first time point and a first projection area rising above the vehicle, and generates a composite image seen on the plane from a virtual viewpoint; a calculation unit that calculates a moving route of the vehicle from the first time point to a second time point on the plane; a change unit that changes a projection destination of at least a part of the moving route in the first projection area to a second projection area; and a display control unit that displays the composite image on the plane that includes the vehicle at the first time point, and the first and second projection areas seen from the virtual viewpoint on a display unit.