An image projection apparatus comprising: a light source configured to emit light with a luminance according to supplied electric power; a color wheel configured to sequentially transmit the light from the light source through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first lamp waveform indicating temporal change in electric power supplied to the light source in a first mode and a second lamp waveform indicating temporal change in electric power supplied to the light source in a second mode, the second lamp waveform when a luminance value of the input signal is equal to or less than a first threshold, and to select the first lamp waveform when the luminance value of the input signal exceeds the first threshold, a brightness of the image in the second mode being lower than that in the first mode; characterized in that: the second lamp waveform is set so that a value of electric power supplied to the light source in a period of irradiation of each color filter with a transmittance of 5% or less for a wavelength of 555 nm with the light from the light source becomes a larger value than that in the first lamp waveform; and the second lamp waveform is set so that a value of electric power supplied to the light source in a period of irradiation of each color filter with a transmittance of 90% or more for a wavelength of 555 nm with the light from the light source becomes a smaller value than that in the first lamp waveform. a light source configured to emit light with a luminance according to supplied electric power; a color wheel configured to sequentially transmit the light from the light source through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first lamp waveform indicating temporal change in electric power supplied to the light source in a first mode and a second lamp waveform indicating temporal change in electric power supplied to the light source in a second mode, the second lamp waveform when a luminance value of the input signal is equal to or less than a first threshold, and to select the first lamp waveform when the luminance value of the input signal exceeds the first threshold, a brightness of the image in the second mode being lower than the second lamp waveform is set so that a value of electric power supplied to the light source in a period of irradiation of each color filter with a transmittance of 5% or less for a wavelength of 555 nm with the light from the light source becomes a larger value than that in the first lamp waveform; and the second lamp waveform is set so that a value of electric power supplied to the light source in a period of irradiation of each color filter with a transmittance of 90% or more for a wavelength of 555 nm with the light from the light source becomes a smaller value than that in the first lamp waveform.