Seite - 67 - in Document Image Processing

J. Imaging 2018,4, 6 Table2.Single fontWRR(percent) formulti size fonts (12,14,16and20). TrainingFont (Size) TestingFontName TestingFontSize Top1 Top2 Top3 Top4 Top5 SimplifiedArabic (14) SimplifiedArabic 12 98.26 99.48 99.91 99.96 99.96 14 98.22 99.87 100 100 100 16 98.39 99.44 99.78 99.83 99.83 20 99 99.87 99.96 99.96 99.96 Average 98.44 99.66 99.91 99.93 99.93 ArabicTransparent (14) ArabicTransparent 12 98.13 99.61 99.96 100 100 14 98.48 99.78 100 100 100 16 98 99.74 99.96 100 100 20 98.79 99.83 99.96 100 100 Average 98.33 99.74 99.97 100 100 TraditionalArabic (16) TraditionalArabic 12 97.57 99.65 99.83 99.96 99.96 14 97.61 99.91 99.96 100 100 16 97.39 99.43 99.78 99.83 99.83 20 96.57 99.22 99.83 99.83 99.87 Average 97.33 99.58 99.85 99.90 99.91 Fromthe results inTable2,wecansee that theproposedsystemachievedveryhighaccuracy andmanagedtogeneralize fornewfont sizes thatwerenot included in the trainingdatawithbest WRRof98.44%forSimplifiedArabic fontandthe lowestWRRof97.33%forTraditionalArabic font. Whenconsideredthemultiple recognitionhypotheses, the top-5WRRwasalmost100%. In thesecondexperiment, thesystemwasevaluatedasomnifontby includingseveral fontsand sizes fromthe laserscannedtrainingdataset. Table3 includes theresults for thatevaluation. Table3.Multi-FontsWRR(percent) formulti size fonts (12,14,16and20). TrainingFont (Size) TestingFontName TestingFontSize Top1 Top2 Top3 Top4 Top5 SimplifiedArabic (14) SimplifiedArabic 12 98.26 99.61 100 100 100 ArabicTransparent (14) 14 98.13 99.87 100 100 100 TraditionalArabic (16) 16 98.35 99.44 99.78 99.83 99.83 20 98.96 99.91 100 100 100 Average 98.39 99.7 99.93 99.95 99.95 SimplifiedArabic (14) ArabicTransparent 12 98.35 99.65 99.96 100 100 ArabicTransparent (14) 14 98.96 99.87 100 100 100 TraditionalArabic (16) 16 98.74 99.83 100 100 100 20 99.05 99.87 100 100 100 Average 98.79 99.81 99.99 100 100 SimplifiedArabic (14) TraditionalArabic 12 97.57 99.65 99.83 99.96 99.96 ArabicTransparent (14) 14 97.61 99.91 99.96 100 100 TraditionalArabic (16) 16 97.39 99.43 99.78 99.83 99.83 20 96.4 99.09 99.83 99.83 99.87 Average 97.29 99.55 99.85 99.9 99.91 AswecanseeinTable3, theproposedsystemmanagedtoachieveforthemulti-fontandmulti-size taskalmost the sameWRRas the single fontone. This result shows that thepresentedsystemcan provideanomnifontperformance. Inthethirdexperiment,weevaluatedoursystemusingtherecentandoldbooksdatasets. Table4 showstheresultsof thatevaluation. Table4.Multi-FontsWRR(percent) forbooks. BooksType Top1 Top5 Top10 Top20 RecentComputerized 77.33 86.37 87.69 89.19 OldUncomputerized 47.76 60.68 65.77 69.24 67