Research Article
Image Edge Detection by Global Thresholding Using Riemann–Liouville Fractional Integral Operator
Table 3
The statistical comparison for PR parameter with the competitors on BSD500.
| PR parameter | BSD image no. | Prewitt | Sobel | Canny | FGTED |
| 189080 | 12.07686 | 12.24877 | 15.72025 | 12.77581 | 42049 | 15.79185 | 15.83617 | 17.56378 | 15.77747 | 118035 | 11.18474 | 11.3226 | 13.3159 | 11.496811 | 163014 | 8.212761 | 8.638463 | 12.18637 | 14.13212 | 135069 | 15.08391 | 15.43197 | 18.56275 | 18.93553 | 189011 | 5.640497 | 5.693151 | 7.525693 | 5.812116 | 189080 | 7.694744 | 7.715008 | 9.937986 | 8.16019 |
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