5. The system of claim 1 , wherein the processor is further configured to display the recognized numerical character.
1. A system, comprising: a processor configured to: extract a subimage from a received image comprising information pertaining to a plurality of numerical characters, wherein the extracted subimage is associated with one of the plurality of numerical characters; perform recognition based at least in part on a set of topological information associated with the subimage, including: process the subimage to obtain the set of topological information associated with the subimage, wherein the processing of the subimage includes: obtain the set of topological information by extracting one or more vertices and one or more edges associated with the subimage; and determine whether a closed ring associated with at least a portion of the one or more vertices and at least a portion of the one or more edges exists, wherein the determining whether the closed ring exists comprises: proceed from a first filled in pixel to a second filled in pixel, the second filled in pixel being adjacent to the first filled in pixel; proceed from the second filled in pixel to a third filled in pixel repeatedly until the first filled in pixel is reached, the third filled in pixel being adjacent to the second filled in pixel; and in the event that the first filled in pixel is reached: associate a point within the closed ring as representing the closed ring; and add a location of the point representing the closed ring to the set of topological information; compare the set of topological information associated with the subimage with a preset set of stored topological information; determine that in the event that the set of topological information associated with the subimage matches the preset set of stored topological information, the subimage is associated with a recognized numerical character associated with the preset set of stored topological information; and a memory coupled to the processor and configured to provide the processor with instructions.