min score and dscore support

hook/objectconfig.ini

@@ -155,6 +155,8 @@ face_model=cnn
 #frame_id=32
 #wait=3
 
+
+
 #[monitor-4]
 # detect_pattern=(cat|dog)
 # kitchen_door=313,221 392,210 418,592 367,659
@@ -197,17 +199,20 @@ face_model=hog
 face_upsample_times=1
 
 [alpr]
-# leave this as is
+# currently unused
 alpr_service=plate_recognizer
 # replace with your api key
-alpr_key=YOURAPIKEY
-# leave this as is
+alpr_key=YOURKEY
+# leave this as yes for now
 alpr_use_after_detection_only=yes
 # if yes, then it will log usage statistics of the ALPR service
 alpr_stats=yes
-
 # If you want to specify regions. See http://docs.platerecognizer.com/#regions-supported
 #alpr_regions=['us','cn','kr']
-
 # If you want to host a local SDK https://app.platerecognizer.com/sdk/
-#alpr_url=https://localhost:8080/alpr
+#alpr_url=https://localhost:8080
+
+# minimal confidence for actually detecting a plate
+alpr_min_dscore=0.5
+# minimal conficende for the translated text
+alpr_min_score=0.5

hook/zmes_hook_helpers/alpr.py

@@ -85,11 +85,16 @@ def detect(self,object):
 
         for plates in response['results']:
             label = plates['plate']
-            x1 = round(int(plates['box']['xmin']) * xfactor)
-            y1 = round(int(plates['box']['ymin']) * yfactor)
-            x2 = round(int(plates['box']['xmax']) * xfactor)
-            y2 = round(int(plates['box']['ymax']) * yfactor)
-            labels.append(label)
-            bbox.append( [x1,y1,x2,y2])
-            confs.append(plates['score'])
+            dscore = plates['dscore']
+            score = plates['score']
+            if dscore >= g.config['alpr_min_dscore'] and score >= g.config['alpr_min_score']:
+                x1 = round(int(plates['box']['xmin']) * xfactor)
+                y1 = round(int(plates['box']['ymin']) * yfactor)
+                x2 = round(int(plates['box']['xmax']) * xfactor)
+                y2 = round(int(plates['box']['ymax']) * yfactor)
+                labels.append(label)
+                bbox.append( [x1,y1,x2,y2])
+                confs.append(plates['score'])
+            else:
+                g.logger.debug ('ALPR: discarding plate:{} because its dscore:{}/score:{} are not in range of configured dscore:{} score:{}'.format(label,dscore,score, g.config['alpr_min_dscore'], g.config['alpr_min_score']))
         return (bbox, labels, confs)

hook/zmes_hook_helpers/common_params.py

@@ -230,7 +230,20 @@
             'default': 'no',
             'type': 'string'
         },
-
-
+        'alpr_min_dscore':{
+            'section': 'alpr',
+            'default': '0.3',
+            'type': 'float'
+        },
+        'alpr_min_dscore':{
+            'section': 'alpr',
+            'default': '0.5',
+            'type': 'float'
+        },
+        'alpr_min_score':{
+            'section': 'alpr',
+            'default': '0.5',
+            'type': 'float'
+        },
 
     }