| Color based method | Sensitivity (%) | SPC (%) | ACC (%) |
| Uniform LBP [ 7 ] 2009 | 79.25 | 94.56 | 91.50 |
| Hist, probability [ 8 ] 2013 | 83.00 | 75.69 | 77.15 |
| Color hist. [ 9 ] 2014 | 90.80 | 92.63 | 91.97 |
| Stat (CMYK) [ 10 ] 2014 | 95.50 | 92.87 | 93.40 |
| Word hist. [ 2 ] 2016 | 91.71 | 94.05 | 93.31 |
| Raw hist. [ 1 ] 2008 | 94.50 | 98.95 | 98.06 |
| CHOBS [ 3 ] 2018 | 97.85 | 99.47 | 99.15 |
| RGB+Median filter, proposed method | 95.00 | 99.20 | 97.10 |
| HSV+Median filter, proposed method | 98.00 | 94.20 | 96.10 |
| RGB+Minimum filter, proposed method | 94.40 | 99.00 | 96.70 |
| HSV+Minimum filter, proposed method | 99.00 | 93.20 | 96.10 |