1. An image-processing system comprising: a processor; a database for storing symbols, each symbol corresponding to an image-processing operation; and a search module coupled to the processor and the database, for receiving an image and identifying a symbol in the image, wherein the search module includes an algorithm for: applying a mask over the image; and performing an exclusive NOR (XNOR) logic operation on the corresponding mask and the image to identify the symbol in the image; wherein the processor is configured to determine the image-processing operation which corresponds to the identified symbol and to output information for processing the image according to the determined image-processing operation.