Three aspects that make this toolkit suite stand out, and that -to our knowledge -no other tool or toolkit can provide, are that (1) it presents confusion matrices and accuracy values for single characters and words, (2) it comes with an extensive set of separate tools that each assess and highlight different performance metrics, and (3) it is the only toolkit suite in existence to have been used as a de facto standardized assessment tool.
non-ASCII text was causing troubles to this toolkit from the mid-nineties, when OCR operations were still focused on purely ASCII texts (Beusekom et al., 2008).