1. A system comprising: a multi-camera array comprising a plurality of cameras having overlapping fields of view and configured to synchronously capture a plurality of images having overlapping regions; a tone mapping engine configured to produce, for each of the plurality of images, a tone-mapped image having pixels of a first bit depth based on a tone map corresponding to the image, wherein the tone map corresponding to the image is different from at least one other tone map corresponding to another image of the plurality of images; and an image processing engine configured to combine the tone-mapped images to form a combined image having at least one region corresponding to one or more of the overlapping regions, wherein combining the plurality of tone-mapped images comprises combining the tone maps corresponding to the tone-mapped images to produce a combined tone map such that the at least one region corresponding to the one or more of the overlapping regions has pixels of a second bit depth greater than the first bit depth.