A hologram reproduction method for reproducing a hologram from an optical
recording medium in which the hologram is recorded by Fourier
transforming a signal light, in which digital data is represented by an
image of intensity distribution, and a reference light, and
simultaneously irradiating the lights in a state in which a direct
current component is removed from at least the Fourier transformed signal
light onto the optical recording medium is provided. The method
including: irradiating a read out reference light onto the optical
recording medium, and generating a diffracted light from the recorded
hologram; generating all or a part of a direct current component
contained in a Fourier transformed image of the signal light; combining
the diffracted light and the generated all or a part of the direct
current component, and generating a combined beam; and reproducing the
signal light by inverse-Fourier transforming the combined beam.