特征 | sobel算子 | prewitt算子 | roberts算子 | log算子 | 拉普拉斯算子 | |||||
Image | sensitivity % | specificity % | Sensitivity % | specificity % | sensitivity % | specificity % | sensitivity % | specificity % | sensitivity % | specificity % |
渐变 | 30.96 | 69.04 | 7.53 | 92.47 | 30.27 | 69.73 | 13.51 | 86.49 | 8.31 | 91.69 |
人脸 | 40.66 | 87.68 | 47.39 | 82.35 | 21.33 | 87.18 | 34.24 | 89.5 | 30.23 | 90.21 |
人物 | 34.09 | 88.7 | 37.54 | 86.69 | 28.43 | 86.02 | 20.05 | 90.69 | 22.84 | 89.26 |
动物 | 47.79 | 86.13 | 46.63 | 86.4 | 30.8 | 89.15 | 18.84 | 91.16 | 22.74 | 90.12 |
植物 | 38.27 | 89.38 | 27.47 | 94.11 | 25.75 | 95.15 | 20.64 | 94.12 | 23.77 | 91.77 |
风景 | 42.86 | 84.62 | 33.32 | 90.02 | 29.93 | 82.47 | 30.11 | 83.22 | 32.41 | 90.47 |
飞机 | 45.12 | 97.81 | 46.09 | 97.52 | 45.92 | 98.25 | 37.13 | 97.64 | 39.79 | 97.7 |
噪声 | 23.26 | 95.5 | 16.63 | 98.23 | NA | NA | 8.11 | 96.45 | NA | NA |
平均 | 37.88 | 87.36 | 32.83 | 90.97 | 30.35 | 86.85 | 22.83 | 91.16 | 25.73 | 91.60 |
特征 | 旋度算子 | 上下左右像素灰度差 | 像素灰度梯度 | 像素灰度梯度二阶差分 | 经典Canny算法 | |||||
Image | sensitivity % | Specificity % | Sensitivity % | Specificity % | sensitivity % | specificity % | sensitivity % | specificity % | sensitivity % | specificity % |
渐变 | 12.41 | 87.59 | 9.38 | 90.63 | 30.73 | 69.27 | 13.66 | 86.34 | 5.26 | 94.74 |
人脸 | 25.58 | 89.15 | 30.55 | 90.7 | 76.82 | 68.30 | 14.6 | 90.77 | 20.53 | 93.78 |
人物 | 23.38 | 86.4 | 37.04 | 83.52 | 36.48 | 86.63 | 24.51 | 84.04 | 18.27 | 92.14 |
动物 | 27.45 | 89.86 | 40.32 | 88.13 | 48.38 | 85.9 | 23.79 | 92.62 | 21.87 | 94.82 |
植物 | 15.83 | 92.94 | 45.21 | 88.25 | 38.43 | 96.09 | 21.65 | 93.05 | 15.76 | 95.4 |
风景 | 15.31 | 93.9 | 26.2 | 88.4 | 45.94 | 86.99 | 30.76 | 89.43 | 21.95 | 94.19 |
飞机 | 35.27 | 97.22 | 53.83 | 97.52 | 68.2 | 97.5 | 45.36 | 96.4 | 33.66 | 99.36 |
噪声 | NA | NA | 22.79 | 97.96 | 26.11 | 98.11 | 12.11 | 94.06 | 17 | 98.59 |
平均 | 22.89 | 91.01 | 33.17 | 90.64 | 46.39 | 86.10 | 23.31 | 90.84 | 19.29 | 95.38 |