Page - 119 - in Document Image Processing

J. Imaging 2018,4, 43 Table5.Experimental results forbinarizationtask inF-Measure (FM),PeakSNR(PSNR),andNegative RateMetric (NRM).AhigherF-measureandPSNR,anda lowerNRM, indicateabetter result. Methods Parameter Manuscripts FM(%) NRM PSNR(%) OtsuGray [34,41] Otsufromgray image UsingMatlabgraythresh[43] Balinese 18.98178 0.398894 5.019868 Khmer 23.92159 0.313062 7.387765 Sundanese 23.70566 0.326681 9.998433 OtsuRed [34,41] Otsufromredimagechannel UsingMatlabgraythresh Balinese 29.20352 0.300145 10.94973 Khmer 21.15379 0.337171 5.907433 Sundanese 21.25153 0.38641 12.60233 Sauvola [34,36,41,42,44,45] window=50,k=0.5,R=128 Balinese 13.20997 0.462312 27.69732 Khmer 44.73579 0.268527 26.06089 Sundanese 6.190919 0.479984 24.78595 Sauvola2 [34,36,41,42,44,45] window=50,k=0.2,R=128 Balinese 40.18596 0.274551 25.0988 Khmer 47.55924 0.155722 21.96846 Sundanese 43.04994 0.299694 23.65228 Sauvola3 [34,36,41,42,44,45] window=50,k=0.0,R=128 Balinese 35.38635 0.165839 17.05408 Khmer 30.5562 0.190081 12.78953 Sundanese 40.29642 0.181465 16.25056 Niblack [34,36,41,42,44] window=50,k=−0.2 Balinese 41.55696 0.175795 21.24452 Khmer 38.01222 0.160807 16.84153 Sundanese 46.79678 0.195015 20.31759 Niblack2 [34,36,41,42,44] window=50,k=0.0 Balinese 35.38635 0.165839 17.05408 Khmer 30.5562 0.190081 12.78953 Sundanese 40.29642 0.181465 16.25056 NICK[44] window=50,k=−0.2 Balinese 37.85919 0.328327 27.59038 Khmer 51.2578 0.176003 24.51998 Sundanese 29.5918 0.390431 24.26187 Rais [34] window=50 Balinese 34.46977 0.171096 16.84049 Khmer 31.59138 0.187948 13.52816 Sundanese 40.65458 0.177016 16.35472 Wolf [42,44] window=50,k=0.5 Balinese 27.94817 0.392937 27.1625 Khmer 46.78589 0.23739 25.1946 Sundanese 42.40799 0.299157 23.61075 Howe1[39] Defaultvalues [39] Balinese 44.70123 0.267627 28.35427 Khmer 40.20485 0.280604 25.59887 Sundanese 45.90779 0.235175 21.90439 Howe2[39] Defaultvalues Balinese 40.5555 0.273994 28.02874 Khmer 32.35603 0.294016 25.96965 Sundanese 35.35973 0.274865 22.36583 Howe3[39] Defaultvalues Balinese 42.15377 0.304962 28.38466 Khmer 30.7186 0.382087 26.36983 Sundanese 25.77321 0.350349 23.66912 Howe4[39] Defaultvalues Balinese 45.73681 0.273018 28.60561 Khmer 36.48396 0.280519 25.83969 Sundanese 38.98445 0.281118 22.83914 ICFHRG1 Seeref. [25] Balinese 63.32 0.15 31.37 Khmer 52.65608 0.250503 28.16886 Sundanese 38.95626 0.329042 24.15279 ICFHRG2 Seeref. [25] Balinese 68.76 0.13 33.39 Khmer - - - Sundanese - - - ICFHRG3 Seeref. [25] Balinese 52.20 0.18 26.92 Khmer - - - Sundanese - - - ICFHRG4 Seeref. [25] Balinese 58.57 0.17 29.98 Khmer - - - Sundanese - - - 119