A holographic system comprising: an image processing engine arranged to determine a plurality of secondary images from a primary image, each secondary image formed by sampling the pixel values of the primary image at a regular array of sampling positions, wherein a first secondary image is formed using a regular array of first sampling positions and a second secondary image is formed using a regular array of second sampling positions, wherein the second sampling positions are interposed between the first sampling positions in a first direction; a hologram engine arranged to determine a hologram of each secondary image; a display engine arranged to display each hologram in rapid succession on a display device so as to reconstruct each secondary image from the respective hologram such that a first array of image pixels, substantially corresponding to the primary image, is perceivable, wherein image pixels of the reconstruction of the second secondary image are interposed between image pixels of the reconstruction of the first secondary image in the first direction; wherein the display engine is further arranged to display each hologram in rapid succession for a second time, wherein the second time is immediately after the first time, so as to reconstruct each secondary image from the respective hologram such that a second array of image pixels is perceivable, wherein the second array of image pixels is translated in a second direction relative to the first array of images pixels, wherein the second direction is orthogonal to the first direction; and wherein an aperture of the display device is orientated such that it is longer in the second direction than the first direction such that the image pixels formed to reconstruct each secondary image are more elongate and closely-packed in the first direction than the second direction. an image processing engine arranged to determine a plurality of secondary images from a primary image, each secondary image formed by sampling the pixel values of the primary image at a regular array of sampling positions, wherein a first secondary image is formed using a regular array of first sampling positions and a second secondary image is formed using a regular array of second sampling positions, wherein the second sampling positions are interposed between the first sampling positions in a first direction; a hologram engine arranged to determine a hologram of each secondary image; a display engine arranged to display each hologram in rapid succession on a display device so as to reconstruct each secondary image from the respective hologram such that a first array of image pixels, substantially corresponding to the primary image, is perceivable, wherein image pixels of the reconstruction of the second secondary image are interposed between image pixels of the reconstruction of the first secondary image in the first direction; wherein the display engine is further arranged to display each hologram in rapid succession for a second time, wherein the second time is immediately after the first time, so as to reconstruct each secondary image from the respective hologram such that a second array of image pixels is perceivable, wherein the second array of image pixels is translated in a second direction relative to the first array of images pixels, wherein the second direction is orthogonal to the first direction; and wherein an aperture of the display device is orientated such that it is longer in the second direction than the first direction such that the image pixels formed to reconstruct each secondary image are more elongate and closely-packed in the first direction than the second direction. <EOS>