COMPUTER-READABLE STORAGE MEDIUM HAVING STORED THEREIN INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD

An information processing section of a game apparatus executes a program including: a step of obtaining an image captured by an outer camera; a step of calculating, when detection of a marker is completed, a position and an orientation of a virtual camera based on a result of the marker detection; a step of obtaining hand-drawn data; a step of capturing, with the virtual camera, a fundamental polygon to which a texture is applied to generate a hand-drawn image, and displaying, on an upper LCD, an image in which the hand-drawn image is superimposed on the camera image; and a step of displaying a hand-drawn input image on a lower LCD.