1. An information processing device comprising: a correction unit configured to correct parameters of an ensemble learner using correction information for correcting the parameters of the ensemble learner having a plurality of weak learners that receive characteristic amounts extracted from an input image and output weak hypotheses indicating whether or not a predetermined target is reflected in the input image, the correction information being calculated based on a light source illuminating the target; and a discrimination unit configured to integrate the weak hypotheses output from the weak learners with respect to the characteristic amounts using the ensemble learner of which the parameters are corrected and discriminate whether or not the target is reflected in the input image based on an integrated value of the weak hypotheses.