The image projection apparatus of the present invention includes a light source that outputs coherent light; a phase modulator that performs phase modulation on the light output from the light source to create a Fourier transform image; an amplitude modulator that performs amplitude modulation on the Fourier transform image in accordance with an image signal; a projection optical system that projects the light that has been amplitude modulated, and a controller that divides the image represented by the image signal into a plurality of divided images, determines the target luminance value of each of the areas of the Fourier transform image that is divided corresponding to the division of the image, based on the image signal, and outputs phase data indicating the amount of phase modulation so as to make the luminance value of each area of the Fourier transform image acquire the target luminance value of the associated area.