1. A magnified display apparatus comprising: a display device to display an image; a detection device to detect the respective positions of a plurality of intended subjects within an original image, the original image being one of an image to be displayed and an image on display on the display device; a display area determining device to determine a magnified display area for magnified display of each of the intended subjects based on the respective positions of intended subjects within the original image as detected by the detection device; a magnification rate determining device to determine a magnification rate of each magnified display area determined by said display area determining device based on a size of the determined magnified display areas and a size of a screen displayed by the display device; and a magnified image control device for determining magnification information for each intended subject and outputting the magnification information as a set for all of the intended subjects, the magnification information for each intended subject comprising the magnified display area for the intended subject determined by the display area determining device and the magnification rate of the corresponding magnified display area determined by the magnification rate determining device; wherein the display device displays an image in the magnified display area determined by the display area determining device in accordance with the magnification rate determined by the magnification rate determining device, wherein the display device displays on the screen an image of one of the intended subjects with the magnified display area and magnification rate determined by the output of the magnified image control device, said apparatus further comprising a classification device to classify the plurality of intended subjects determined by the detection device, into a plurality of masses, wherein the display area determining device determines the magnified display area based on positions of all the intended subjects classified into the same mass by the classification device.