flowchart TB A[Image - Date 1] B[Image - Date 2] A --> AF[Feature Engineering] B --> BF[Feature Engineering] AF -- Pixel or Object --> AC[Classification] BF -- Pixel or Object --> BC[Classification] AC --> CM[Change Map] BC --> CM
Center for Geospatial Analytics at North Carolina State University
Continous Data
Discrete
Tip
Best if conditions are as similar as possible
\[
VARI = \frac{(Green - Red)}{(Green + Red - Blue)}
\]
Identify Change or no change
Reference Predicted | Forest | Water | Urban | Agriculture | User’s Accuracy (%) |
---|---|---|---|---|---|
Forest | 50 | 2 | 3 | 0 | 90.9 |
Water | 1 | 45 | 0 | 4 | 88.2 |
Urban | 2 | 1 | 40 | 7 | 80.0 |
Agriculture | 0 | 3 | 5 | 42 | 85.7 |
Producer’s Accuracy (%) | 94.3 | 86.5 | 83.3 | 79.2 |
flowchart TB A[Image - Date 1] B[Image - Date 2] A --> AF[Feature Engineering] B --> BF[Feature Engineering] AF -- Pixel or Object --> AC[Classification] BF -- Pixel or Object --> BC[Classification] AC --> CM[Change Map] BC --> CM