1. An augmented reality provision system including an imaging unit that images a real space, and a display unit that superimposes an object image indicating a virtual object on a captured image obtained through the imaging in the imaging unit and displays the object image, the system comprising: a feature part extraction unit that extracts a plurality of feature parts from the captured image including a target, the target including the plurality of feature parts having the same color; a light distribution characteristics estimation unit that estimates light distribution characteristics of light with which the target is irradiated, from a relationship between color values in the plurality of feature parts extracted by the feature part extraction unit; and an image correction unit that obtains the object image to which a visual effect in which the virtual object is irradiated with the light has been given depending on the light distribution characteristics estimated by the light distribution characteristics estimation unit, by correcting a color of an original object image indicating the virtual object.