1. A non-transitory computer readable medium storing an image processing program that is executed in a computer that displays an image on a display device, the image processing program causing the computer to execute: generating a display image of a state in which a three-dimensional virtual space, including a first model and a second model to which a predetermined texture is pasted, is imaged by a virtual camera; and displaying the generated image on the display device, wherein in the generating the display image, the display image is generated such that, at a front surface of the first model, a silhouette model is rendered; the silhouette model is present at a position corresponding to the second model present behind the first model with respect to a view direction of the virtual camera in the virtual space; and a silhouette image of the second model is pasted to the silhouette model.