1. In a computing environment, a method of performing word recognition operations to determine what an image of a word represents, the method comprising: accessing a first image, the first image representing an image version of a word; accessing a second image, the second image representing an image version of a word; using a warp mesh, warping the second image to cause the second image to approximately match the first image by applying a mesh to the second image and moving vertices of the mesh to warp the second image; and determining the difference between the warped second image and the unwarped first image.