the present invention provides a hologram apparatus for recording interference fringes formed from reference light and signal light optically spatially modulated by a spatial light modulator on a hologram recording material or picking up an image of reproduction signal light produced by irradiating illumination reproduction light on the hologram recording material by means of an image pickup device to obtain a reproduction image signal . the hologram apparatus includes a matching data acquisition section , an arithmetic operation section , and a positioning control section . the matching data acquisition section directly picks up an image of the signal light optically spatially modulated with a pixel matching pattern displayed on the spatial light modulator by means of the image pickup device to obtain a reproduction image signal . the arithmetic operation section performs predetermined arithmetic operation using a luminance value of the reproduction image signal . the positioning control section moves a relative position between the image pickup device and the spatial light modulator in response to a result of the arithmetic operation of the arithmetic operation section .