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Tables illustrating a confusion matrix with a balanced (a) and a skewed (b) distribution.
| (a) Balanced distribution | |||||
|
Rater B
(Practice) |
Rater A (Reference Map) | Sum | |||
| W | S | V | U | ||
| Water body | 100 | 8 | 8 | 8 | 124 |
| Soil | 8 | 100 | 8 | 9 | 125 |
| Vegetation | 8 | 8 | 100 | 9 | 125 |
| Urban area | 8 | 8 | 10 | 100 | 126 |
| sum | 124 | 124 | 126 | 126 | 500 |
| (b) Skewed distribution | |||||
|
Rater B
(Algorithm) |
Rater A (Reference Map) | Sum | |||
| W | S | V | U | ||
| Water | 400 | 40 | 4 | 1 | 445 |
| Soil | 40 | 0 | 3 | 1 | 44 |
| Vegetation | 4 | 3 | 0 | 1 | 8 |
| Urban | 1 | 1 | 1 | 0 | 3 |
| sum | 445 | 44 | 8 | 3 | 500 |
