An example projection system includes a processing element to run an iterative algorithm to generate, based on a digital video image, a phase hologram; an illumination source to output coherent light; a phase light modulator (PLM) to receive the phase hologram and the coherent light, and modulate the coherent light to produce modulated light; and projection optics to receive the modulated light from the PLM and to project an image responsive to the modulated light and the phase hologram, in which the image has more noise in bright regions of the image than in dark regions of the image, and in which the bright regions are of higher intensity than the dark regions.

An example projection system includes a processing element to run an iterative algorithm to generate, based on a digital video image, a phase hologram; an illumination source to output coherent light; a phase light modulator (PLM) to receive the phase hologram and the coherent light, and modulate the coherent light to produce modulated light; and projection optics to receive the modulated light from the PLM and to project an image responsive to the modulated light and the phase hologram, in which the image has more noise in bright regions of the image than in dark regions of the image, and in which the bright regions are of higher intensity than the dark regions.