13. A computer implemented processing system which performs the method of claim 1 , comprising: a synthesizer which synthesizes the at least one computer-generated image based on the received query string; a model which is trained on features extracted from the at least one computer-generated image; a scoring component which scores the candidate handwritten word images of the collection of candidate handwritten word images against the model and, based on the scores, identifies the subset of the handwritten word images.
13. A computer implemented processing system which performs the method of claim 1 , comprising: a synthesizer which synthesizes the at least one computer-generated image based on the received query string; a model which is trained on features extracted from the at least one computer-generated image; a scoring component which scores the candidate handwritten word images of the collection of candidate handwritten word images against the model and, based on the scores, identifies the subset of the handwritten word images. 14. The processing system of claim 13 , further comprising: a document segmentor which processes an input document image to identify the candidate handwritten word images.