1. An image display device comprising: an imaging unit configured to acquire a first image; at least one processor configured to specify an object apparatus imaged by the imaging unit; wherein the at least one processor is configured to acquire an operating state of the object apparatus; wherein the at least one processor is configured to generate a second image corresponding to the specified object apparatus and the acquired operating state; wherein the at least one processor is configured to determine a reference position of the first image acquired by the imaging unit; wherein the at least one processor is configured to combine the second image with the first image using the reference position, to thereby generate a combined image; and a display configured to display the combined image.