Disclosed herein is an image-processing apparatus. The apparatus includes: a taken-image acquisition section configured to acquire a taken image; and a to-be-processed area setting section configured to carry out an analysis on a taken image acquired by the taken-image acquisition section and configured to use the pixel area of a photographed-subject image of a specific type in the taken image as a to-be-processed area of an image conversion process in accordance with the size of the photographed-subject image if a result of the analysis indicates that the photographed-subject image exists in the taken image. The apparatus further includes an image conversion section configured to carry out the image conversion process on the photographed-subject image with the pixel area thereof used as the to-be-processed area in order to generate a post-conversion image obtained as a result of the image conversion process.