Welcome to GeoAccuracy's Documentation!

GeoAccuracy is a QGIS plugin that automates the generation of confusion matrices (error matrices) and calculates advanced mapping accuracy statistics when comparing classified rasters against reference maps.

        Supported Metrics: Overall Accuracy, Cohen's Kappa, Balanced Accuracy, Matthews Correlation Coefficient (MCC), per-class F1-scores, and user/producer accuracies.
    

How to Use GeoAccuracy

Follow these simple steps to perform an accuracy assessment:

Ensure both your classified raster map and ground-truth reference raster map are loaded in QGIS.
Open the plugin via the toolbar button or by going to Plugins > Accuracy Assessment.
Select your **Reference Map** layer from the dropdown.
Select your **Comparison Map** layer from the dropdown.
Click Select... next to the CSV Output File field, choose where to save the files, and specify a name.
Click OK.

Understanding the Output

Upon completion, two files are exported to the target folder:

CSV Confusion Matrix: Standard-compliant comma-separated matrix containing raw pixel counts, totals, user accuracy, and producer accuracy.
HTML Report: A responsive report featuring a colored confusion matrix table, diagnostic ratings (Excellent, Good, Fair, Poor), and category-specific suggestions.