1. A method of retrieving electronic documents, the method comprising: receiving an image; extracting, by an image processing system, contents of the image to generate extracted contents; determining a plurality of text strings from the extracted contents of the image; assigning a confidence value to each of the plurality of text strings, wherein the confidence value is indicative of a likelihood that the image processing system has correctly determined content of each of the plurality of text strings, wherein assigning the confidence value comprises: determining whether the image has noise, the presence of noise being indicative of a low quality image; if the image has noise, assigning a first confidence value to each of the plurality of text strings; and if the image does not have noise, assigning a second confidence value to each of the plurality of text strings, wherein the second confidence value is greater than the first confidence value; determining at least a first text string and a second text string from among the plurality of text strings based at least in part on the confidence value for each of the first and the second text strings; forming a search query by conjoining the first text string and the second text string to produce a third text string as the search query, the third text string comprising the first string and the second string; searching a plurality of electronic documents to identify a first electronic document that satisfies the search query; and communicating the first electronic document to a recipient.
1. A method of retrieving electronic documents, the method comprising: receiving an image; extracting, by an image processing system, contents of the image to generate extracted contents; determining a plurality of text strings from the extracted contents of the image; assigning a confidence value to each of the plurality of text strings, wherein the confidence value is indicative of a likelihood that the image processing system has correctly determined content of each of the plurality of text strings, wherein assigning the confidence value comprises: determining whether the image has noise, the presence of noise being indicative of a low quality image; if the image has noise, assigning a first confidence value to each of the plurality of text strings; and if the image does not have noise, assigning a second confidence value to each of the plurality of text strings, wherein the second confidence value is greater than the first confidence value; determining at least a first text string and a second text string from among the plurality of text strings based at least in part on the confidence value for each of the first and the second text strings; forming a search query by conjoining the first text string and the second text string to produce a third text string as the search query, the third text string comprising the first string and the second string; searching a plurality of electronic documents to identify a first electronic document that satisfies the search query; and communicating the first electronic document to a recipient. 3. The method of claim 1 wherein the step of determining at least a first text string and a second text string includes identify text using a lexicon, wherein text that belong to the lexicon are included in the first and second text strings, wherein at least one text string from the extracted contents not belonging to the lexicon is excluded from the first and second text strings.