set2/image17

Method Time (sec) Levenshtein Distance
Free OCR (778) ABBYY (19)
Otsu 0.00453 778 761
Chang 0.02750 668 432
Niblack 0.78120 488 227
Sauvola 0.77820 440 358
Bernsen 0.72500 497 137
Rahul 1.48740 61 10
Gatos 4.20300 282 181
Kim 7.54700 118 319
Valizadeh 4.54700 121 63
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ground truth text for free OCR based results
ground truth text for ABBYY Fine Reader based results
real

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free OCR result
ABBYY Fine Reader result
rahul

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free OCR result
ABBYY Fine Reader result
otsu

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free OCR result
ABBYY Fine Reader result
bernsen

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free OCR result
ABBYY Fine Reader result
niblack

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free OCR result
ABBYY Fine Reader result
sauvola

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free OCR result
ABBYY Fine Reader result
kim

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free OCR result
ABBYY Fine Reader result
gatos

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free OCR result
ABBYY Fine Reader result
chang

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free OCR result
ABBYY Fine Reader result
valizadeh

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free OCR result
ABBYY Fine Reader result