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Author: APV01112

live_barcode_reader.py

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+from pyzbar import pyzbar
+import cv2
+from playsound import playsound
+
+wavF = "beep.wav"
+objects_scanned =[]
+
+def userinput(zero):
+    
+    return image
+
+def draw_barcode(decoded, image):
+    # n_points = len(decoded.polygon)
+    # for i in range(n_points):
+    #     image = cv2.line(image, decoded.polygon[i], decoded.polygon[(i+1) % n_points], color=(0, 255, 0), thickness=5)
+    image = cv2.rectangle(image, (decoded.rect.left, decoded.rect.top), 
+                            (decoded.rect.left + decoded.rect.width, decoded.rect.top + decoded.rect.height),
+                            color=(0, 255, 0),
+                            thickness=5)
+    
+    return image
+
+
+
+def decode(image):
+    # decodes all barcodes from an image
+    decoded_objects = pyzbar.decode(image)
+    for obj in decoded_objects:
+        
+        if obj.data not in objects_scanned:
+
+            # draw the barcode
+            image = draw_barcode(obj, image)
+            # print barcode type & data
+            playsound(wavF)
+            #print("Name:", obj.name)
+            print("Type:", obj.type)
+            print("Data:", obj.data)
+            print("Scan successful")
+            objects_scanned.append(obj.data)
+            break
+            
+    return image
+
+ 
+if __name__ == "__main__":
+    cap = cv2.VideoCapture(0)
+    while True:
+        # read the frame from the camera
+        _, frame = cap.read()
+        # decode detected barcodes & get the image
+        # that is drawn
+        decoded_objects = decode(frame)
+        # show the image in the window
+        cv2.imshow("frame", frame)
+        
+        if cv2.waitKey(1) == ord("q"):
+            break
+