Abstract: Writing unscreened raster image data into a computing device that contains multiple elements capable of screening raster image data, and executing a plurality of processes within the multiple elements, wherein segments of the unscreened raster image data are simultaneously screened by the plurality of processes. The computing device could utilize graphical processing units, field programmable gate arrays, application specific integrated circuits or other processing devices.

Abstract: An input image containing high resolution images and low resolution images is rasterized twice, once at a high resolution and once at a low resolution. The rasterized images are represented in compressed form using a run-code encoding technique. The low resolution images are rasterized during the low resolution rasterization and are scaled to the output resolution. The high resolution images are rasterized during the high resolution rasterization. The two rasterizations are merged in hardware, producing a composite output image which contains low resolution image elements and high resolution image elements.