1. An imaging apparatus, comprising: an image-obtaining hardware device, for obtaining through the lens image data sets and image data sets by imaging subjects; a face detecting unit, for detecting faces from within the through the lens image data sets; a recording unit, for recording first image data sets obtained by the image-obtaining hardware device that include the faces; a reference image generating unit, for generating reference image data sets which are employed to generate pseudo three dimensional images from the recorded first image data sets, by calculating the sizes and the sideways facing angles of the faces included in the first image data sets, maintaining the sizes of the faces, and by converting the first image data sets such that the sideways facing angles are changed; an image processor configured to calculate correlative values between the through the lens image data that include new faces and the reference image data to compare the two, when the new faces are detected by the face detecting unit; a control unit for enabling obtainment of second image data sets that include the new faces by the image-obtaining hardware device, when the correlative values calculated by the comparing unit are greater than a predetermined value; and a pseudo three dimensional image generating unit, for generating pseudo three dimensional images from the second image data sets, which are obtained by the image-obtaining hardware device, and the first image data sets, which are recorded in the recording unit.