Fix deprecated MQTT client usage and enhance dayglo detection

- Updated MQTT client to use MQTTv5 to resolve deprecation warning.
- Fine-tuned color thresholds for dayglo detection.
- Added cropping to focus on the center 80% of the image for more accurate analysis.
- Improved functionality to process an image provided via command line before continuing with MQTT message handling.

dayglo_detector/dayglo_detector.py

@@ -21,8 +21,9 @@ DISCOVERY_PREFIX = "homeassistant"
 last_rating = 0
 
 # Default color thresholds for dayglo detection
-LOWER_COLOR = np.array([20, 100, 100])
-UPPER_COLOR = np.array([40, 255, 255])
+# Fine-tune color thresholds for dayglo detection
+LOWER_COLOR = np.array([25, 150, 150])
+UPPER_COLOR = np.array([35, 255, 255])
 
 # Track if the initial snapshot has been processed
 initial_snapshot_processed = False
@@ -92,7 +93,14 @@ def process_snapshot(payload):
 
 def calculate_dayglo_rating(image):
     print("Calculating dayglo rating...")
-    hsv_image = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
+    # Crop the image to focus on the center area
+    height, width = image.shape[:2]
+    crop_margin = 0.1  # 10% margin
+    cropped_image = image[int(height * crop_margin):int(height * (1 - crop_margin)),
+                          int(width * crop_margin):int(width * (1 - crop_margin))]
+
+    print("Calculating dayglo rating...")
+    hsv_image = cv2.cvtColor(cropped_image, cv2.COLOR_BGR2HSV)
     mask = cv2.inRange(hsv_image, LOWER_COLOR, UPPER_COLOR)
     dayglo_pixels = cv2.countNonZero(mask)
     total_pixels = image.shape[0] * image.shape[1]
@@ -123,7 +131,7 @@ if len(sys.argv) > 1:
         print(f"File not found: {image_file}")
 
 # Set up MQTT client for normal operation
-client = mqtt.Client()
+client = mqtt.Client(client_id='', clean_session=True, protocol=mqtt.MQTTv5)
 client.username_pw_set(MQTT_USERNAME, MQTT_PASSWORD)
 client.on_connect = on_connect
 client.on_message = on_message