1. A method to determine the quality of an encoded optical symbol, the method comprising: using a camera having an optical axis and including a light-sensitive array: positioning the optical symbol within the field of view of the camera, rotating the optical symbol to a plurality of rotational dispositions of the optical symbol around the optical axis of the camera relative to the light-sensitive array, and capturing an image of the entire optical symbol at each of the plurality of rotational dispositions; and using a processor coupled to the light-sensitive array: processing each image of the optical symbol to determine a plurality of quality scores of the optical symbol, each quality score corresponding to one of the rotational dispositions, and averaging the plurality of quality scores.