1. An image processing system, comprising: a network; an input connected to the network for receiving therefrom digital image data and a plurality of source identifiers, each source identifier corresponding to one of multiple digital images in the image data; a plurality of processors each coupled to the input for receiving the image data for multiple digital images; means for selecting a subset of the plurality of processors to process the digital image data in response to the source identifiers, and for further selecting a single one of the subset of the plurality of processors to process one of the digital images in the image data in response to the source identifiers, and for each of the selected subset of the plurality of processors to simultaneously process one of the multiple digital images to produce processed image data for each of the multiple digital images; and an output interface coupled to each of the plurality of processors for sequentially outputting the processed image data for each of the multiple digital images from each of the selected subset of the plurality of processors.