scope:

This International Standard -specifies the methodology for the measurement of specific attributes of OCR-B character strings; -defines a method for evaluating these measurements and deriving an overall assessment of character string quality; -defines a reference decode algorithm for OCR-B; -gives information on possible causes of deviation from optimum grades to assist users in taking appropriate corrective action. This International Standard applies to OCR-B as defined in ISO 1073-2, but its methodology can be applied partially or wholly to other OCR fonts.