Disparity in a stereoscopic image is converted, according to features of a configuration element of an image that influences depth perception of a stereoscopic image. A disparity detecting unit 110 detects disparity from a left image L and right image R of an input image, and generates a disparity map dM. A disparity correction unit 150 corrects the disparity in the disparity map dM and generates a corrected disparity map dM′. A correction feature setting unit 130 sets the correction features in the event of performing disparity correction in the disparity correction unit 150. The image synthesizing unit 160 synthesizes the left image L and right image R of the stereoscopic image based on the corrected disparity map dM′ and outputs the stereoscopic image made up of a left image L′ and right image R′ as an output image. Thus, a stereoscopic image having disparity according to the set correction features is output. The correction features therein are set according to the degree that the configuration element features such as size of disparity, position on screen, manner of special change and so forth influence the depth perception.