Hi Ahmad,
After reproducing the code at my end, as per my understanding the syntax error is because of the "ClassMetrics" of the "evaluateObjectDetection" function. The metrics.ClassMetrics represents a table and for each class it represents a row, hence to access each class iterate through all the rows and for each row access the "precision" and "recall" property.
Please refer to the following code snippet for better understanding of the workaround.
% Evaluate object detection
metrics = evaluateObjectDetection(detectionResults, groundTruthData);
% Access precision and recall for each class
classMetrics = metrics.ClassMetrics;
% Loop through each class and obtain precision and recall
for classID = 1:numel(classMetrics)
precision = classMetrics(classID).Precision;
recall = classMetrics(classID).Recall;
% Do something with precision and recall for the current class
fprintf('Class %d: Precision = %.2f, Recall = %.2f\n', ...
classID, precision, recall);
end
Please refer to the following MATLAB documentaion specially the "ClassMetrics" section.
objectDetectionMetrics : https://www.mathworks.com/help/vision/ref/objectdetectionmetrics.html
Hope this helps!
