1. An information processing apparatus comprising: a touch panel; a camera; and a processor coupled to the touch panel and the camera and configured to: display a first guide image on the touch panel, display a second guide image at a location different from a location of the first guide image on the touch panel when a firmer touching on the first guide image is detected, acquire a plurality of images of a first palm photographed during a period from when the finger touching on the first guide image has been detected to when the finger touching on the second guide image has been detected, and extract a first authentication image for use in authentication of a user from the plurality of images of the first palm.