An image processing system and method receives one or more digital images in the form of image data, including selected object data of a digital image, and determines, by an electronic recognition process, if a recognition match is available between the selected object data of the digital image and image object library data associated with image descriptor library data. Each column has a lower portion disposed on the substrate. A set of microlens and an imaging lens positioned at a pre-determined distance collimates radiation from each VCSEL array source to a set of parallel beams. In one embodiment, first and second hoppers communicate with downstream conduit structure, and valve structure selects one or the other of the first and second hoppers for delivery of the material.