bug fix

Author: kaanakan

confusion_matrix.py

@@ -80,7 +80,7 @@ def process_batch(self, detections, labels):
                 self.matrix[(gt_class), self.num_classes] += 1
 
         for i, detection in enumerate(detections):
-            if all_matches.shape[0] and all_matches[all_matches[:, 1] == i].shape[0] == 1:
+            if all_matches.shape[0] and all_matches[all_matches[:, 1] == i].shape[0] == 0:
                 detection_class = detection_classes[i]
                 self.matrix[self.num_classes ,detection_class] += 1