1. An apparatus for attenuating a stereoscopic sense, comprising: a graphic processor configured to generate a stereoscopic image to which a disparity is applied; a stereoscopic sense attenuator configured to perform a stereoscopic sense attenuation according to a position of at least one object in the stereoscopic image; and a controller configured to control the stereoscopic sense attenuator to extract one of the at least one object for which the stereoscopic sense attenuation is performed, calculate a stereoscopic sense attenuation degree corresponding to the position of the at least one object, and output a final stereoscopic image in which the calculated stereoscopic sense attenuation degree is applied to the extracted object when the stereoscopic image is generated by the graphic processor.