An information processing apparatus comprising: an image processing unit; an image supply unit configured to: supply a plurality of input images showing corresponding objects to the image processing unit; and obtain a plurality of object images as an image processing result from the image processing unit; and a display control unit configured to synchronously display the plurality of object images that have been obtained on a display, a position correction unit, the information processing apparatus being characterized in that the image processing unit is configured: to obtain the object images by extracting regions including the corresponding objects from the plurality of input images, such that orientations, positions, and sizes of the corresponding objects of the plurality of object images are unified; and the position correction unit, in order to correct and unify positions and sizes of the corresponding objects of the plurality of object images, is configured: to obtain binary images from the object images which distinguishes a cellular tissue region and a background; to count a number of pixels of the cellular issue region at each vertical coordinate position or at each horizontal coordinate position; to generate histograms, wherein the histograms have a vertical axis, that represent the vertical coordinate position or the horizontal coordinate position of each of the binary images, and a horizontal axis, that represent the number of pixels; to superpose two of the generated histograms on each other such that, while one histogram is fixed, a vertical position or horizontal position of another histogram is adjusted to enlarge or reduce the vertical size until the two histograms are sufficiently superposed on each other; and to apply, to the object image corresponding to the another histogram, adjustment values of a final vertical position or horizontal position and enlarged or reduced correction values of a vertical size or horizontal size. an image processing unit; an image supply unit configured to: supply a plurality of input images showing corresponding objects to the image processing unit; and obtain a plurality of object images as an image processing result from the image processing unit; and supply a plurality of input images showing corresponding objects to the image processing unit; and obtain a plurality of object images as an image processing result from the image processing unit; and a display control unit configured to synchronously display the plurality of object images that have been obtained on a display, a position correction unit, the information processing apparatus being characterized in that the image processing unit is configured: to obtain the object images by extracting regions including the corresponding objects from the plurality of input images, such that orientations, positions, and sizes of the corresponding objects of the plurality of object images are unified; and to obtain the object images by extracting regions including the corresponding objects from the plurality of input images, such that orientations, positions, and sizes of the corresponding objects of the plurality of object images are unified; and the position correction unit, in order to correct and unify positions and sizes of the corresponding objects of the plurality of object images, is configured: to obtain binary images from the object images which distinguishes a cellular tissue region and a background; to count a number of pixels of the cellular issue region at each vertical coordinate position or at each horizontal coordinate position; to generate histograms, wherein the histograms have a vertical axis, that represent the vertical coordinate position or the horizontal coordinate position of each of the binary images, and a horizontal axis, that represent the number of pixels; to superpose two of the generated histograms on each other such that, while one histogram is fixed, a vertical position or horizontal position of another histogram is adjusted to enlarge or reduce the vertical size until the two histograms are sufficiently superposed on each other; and to apply, to the object image corresponding to the another histogram, adjustment values of a final vertical position or horizontal position and enlarged or reduced correction values of a vertical size or horizontal size. to obtain binary images from the object images which distinguishes a cellular tissue region and a background; to count a number of pixels of the cellular issue region at each vertical coordinate position or at each horizontal coordinate position; to generate histograms, wherein the histograms have a vertical axis, that represent the vertical coordinate position or the horizontal coordinate position of each of the binary images, and a horizontal axis, that represent the number of pixels; to superpose two of the generated histograms on each other such that, while one histogram is fixed, a vertical position or horizontal position of another histogram is adjusted to enlarge or reduce the vertical size until the two histograms are sufficiently superposed on each other; and to apply, to the object image corresponding to the another histogram, adjustment values of a final vertical position or horizontal position and enlarged or reduced correction values of a vertical size or horizontal size.