A vehicle image display apparatus, comprising: a control unit configured to: acquire a plurality of captured images of an area (SP1-SP4) around a vehicle, the plurality of captured images being captured by a plurality of cameras (1a-1d) that are mounted on the vehicle at a plurality of positions; generate a single image that shows a representation of the vehicle and a virtual viewpoint image of the area around the vehicle using the plurality of captured images so acquired such that a linear boundary region is formed between adjacent ones of the plurality of captured images extending from the representation of the vehicle to outer edges of the single image; display a composite image on a monitor after an input operation is given to an ignition switch of the vehicle, the composite image including: the single image superposed with a first image showing markings representing each linear boundary region in the single image; and a second image including a plurality of markings, each of the plurality of markings spaced apart from an adjacent one of the plurality of markings, identifying a respective end region of the vehicle and having margins of a predetermined distance from an external surface of the vehicle in the representation of the vehicle, the second image superposed on the single image and the first image; highlight the first and second images (L1, L2) superimposed on the single image for a time period after a start of display of the composite image; and change a level of highlighting of at least one of the first image or the second image after the time period has elapsed so that the second image has a greater level of highlighting than the first image after the time period elapses. a control unit configured to: acquire a plurality of captured images of an area (SP1-SP4) around a vehicle, the plurality of captured images being captured by a plurality of cameras (1a-1d) that are mounted on the vehicle at a plurality of positions; generate a single image that shows a representation of the vehicle and a virtual viewpoint image of the area around the vehicle using the plurality of captured images so acquired such that a linear boundary region is formed between adjacent ones of the plurality of captured images extending from the representation of the vehicle to outer edges of the single image; display a composite image on a monitor after an input operation is given to an ignition switch of the vehicle, the composite image including: the single image superposed with a first image showing markings representing each linear boundary region in the single image; and a second image including a plurality of markings, each of the plurality of markings spaced apart from an adjacent one of the plurality of markings, identifying a respective end region of the vehicle and having margins of a predetermined distance from an external surface of the vehicle in the representation of the vehicle, the second image superposed on the single image and the first image; highlight the first and second images (L1, L2) superimposed on the single image for a time period after a start of display of the composite image; and change a level of highlighting of at least one of the first image or the second image after the time period has elapsed so that the second image has a greater level of highlighting than the first image after the time period elapses. acquire a plurality of captured images of an area (SP1-SP4) around a vehicle, the plurality of captured images being captured by a plurality of cameras (1a-1d) that are mounted on the vehicle at a plurality of positions; generate a single image that shows a representation of the vehicle and a virtual viewpoint image of the area around the vehicle using the plurality of captured images so acquired such that a linear boundary region is formed between adjacent ones of the plurality of captured images extending from the representation of the vehicle to outer edges of the single image; display a composite image on a monitor after an input operation is given to an ignition switch of the vehicle, the composite image including: the single image superposed with a first image showing markings representing each linear boundary region in the single image; and a second image including a plurality of markings, each of the plurality of markings spaced apart from an adjacent one of the plurality of markings, identifying a respective end region of the vehicle and having margins of a predetermined distance from an external surface of the vehicle in the representation of the vehicle, the second image superposed on the single image and the first image; the single image superposed with a first image showing markings representing each linear boundary region in the single image; and a second image including a plurality of markings, each of the plurality of markings spaced apart from an adjacent one of the plurality of markings, identifying a respective end region of the vehicle and having margins of a predetermined distance from an external surface of the vehicle in the representation of the vehicle, the second image superposed on the single image and the first image; highlight the first and second images (L1, L2) superimposed on the single image for a time period after a start of display of the composite image; and change a level of highlighting of at least one of the first image or the second image after the time period has elapsed so that the second image has a greater level of highlighting than the first image after the time period elapses.