Score Assigned to Each of 40 Images Processed Using Slope 8
| Observer 1 | Observer 2 | |||||
| Image no. | Input score | Output score | Difference | Input score | Output score | Difference |
| 1 | 4 | 4 | 0 | 3 | 4 | 1 |
| 2 | 3 | 5 | 2 | 2 | 5 | 3 |
| 3 | 4 | 4 | 0 | 4 | 5 | 1 |
| 4 | 3 | 5 | 2 | 4 | 5 | 1 |
| 5 | 4 | 5 | 1 | 3 | 5 | 2 |
| 6 | 1 | 5 | 4 | 1 | 4 | 3 |
| 7 | 3 | 5 | 2 | 2 | 5 | 3 |
| 8 | 1 | 4 | 3 | 1 | 3 | 2 |
| 9 | 1 | 4 | 3 | 1 | 4 | 3 |
| 10 | 3 | 4 | 1 | 2 | 4 | 2 |
| 11 | 1 | 5 | 4 | 1 | 5 | 4 |
| 12 | 3 | 4 | 1 | 2 | 4 | 2 |
| 13 | 2 | 5 | 3 | 2 | 5 | 3 |
| 14 | 2 | 4 | 2 | 1 | 4 | 3 |
| 15 | 1 | 4 | 3 | 1 | 4 | 3 |
| 16 | 2 | 5 | 3 | 2 | 5 | 3 |
| 17 | 3 | 5 | 2 | 2 | 5 | 3 |
| 18 | 3 | 5 | 2 | 3 | 5 | 2 |
| 19 | 1 | 4 | 3 | 1 | 4 | 3 |
| 20 | 1 | 5 | 4 | 1 | 5 | 4 |
| 21 | 4 | 5 | 1 | 3 | 5 | 2 |
| 22 | 2 | 3 | 1 | 2 | 4 | 2 |
| 23 | 1 | 4 | 3 | 1 | 3 | 2 |
| 24 | 3 | 5 | 2 | 2 | 5 | 3 |
| 25 | 3 | 5 | 2 | 3 | 5 | 2 |
| 26 | 2 | 5 | 3 | 2 | 5 | 3 |
| 27 | 2 | 5 | 3 | 2 | 5 | 3 |
| 28 | 2 | 5 | 3 | 2 | 5 | 3 |
| 29 | 3 | 5 | 2 | 2 | 5 | 3 |
| 30 | 3 | 5 | 2 | 2 | 5 | 3 |
| 31 | 1 | 3 | 2 | 1 | 3 | 2 |
| 32 | 1 | 3 | 2 | 1 | 3 | 2 |
| 33 | 1 | 2 | 1 | 1 | 2 | 1 |
| 34 | 1 | 2 | 1 | 1 | 2 | 1 |
| 35 | 1 | 4 | 3 | 1 | 4 | 3 |
| 36 | 2 | 4 | 2 | 2 | 5 | 3 |
| 37 | 1 | 4 | 3 | 2 | 5 | 3 |
| 38 | 1 | 3 | 2 | 1 | 3 | 2 |
| 39 | 1 | 3 | 2 | 1 | 3 | 2 |
| 40 | 1 | 4 | 3 | 2 | 5 | 3 |
Difference ≥ 0 indicates output image same as or better than input image.