1. A computer implemented method comprising the step of: transforming a grayscale image into an OCR image by applying a combination of steps to the grayscale image, the grayscale image including one or more alphanumeric characters, the combination of steps comprising the steps of: increasing the resolution of the grayscale image; removing signals from the grayscale image by applying one or more filters to the grayscale image; and sharpening the grayscale image by applying anti-aliasing.