failed miserably at hack.lu

2025/hack.lu/rev/FLAN/decode.py

@@ -0,0 +1,65 @@
+import sys
+from PIL import Image
+from pyzbar.pyzbar import decode
+
+def decode_barcode_from_file(image_path):
+    """
+    Decodes all barcodes found in a specified image file.
+
+    Args:
+        image_path (str): The file path to the barcode image.
+
+    Returns:
+        list: A list of decoded strings, or None if an error occurs.
+    """
+    try:
+        # Open the image file using Pillow (PIL)
+        img = Image.open(image_path)
+        
+        # Decode all barcodes found in the image
+        barcodes = decode(img)
+
+        if not barcodes:
+            print(f"❌ No barcode found in the image: {image_path}")
+            return None
+        
+        print(f"✅ Found {len(barcodes)} barcode(s) in {image_path}:")
+        decoded_results = []
+        
+        for i, barcode in enumerate(barcodes):
+            # The decoded data is returned as bytes, so we decode it to a string.
+            data = barcode.data.decode('utf-8')
+            
+            # Print the details
+            print("-" * 30)
+            print(f"Barcode #{i + 1}")
+            print(f"  Type: {barcode.type}")
+            print(f"  Data: {data}")
+            
+            # The 'rect' and 'polygon' attributes provide location data, 
+            # useful for images with multiple barcodes.
+            # print(f"  Location (Rect): {barcode.rect}") 
+            
+            decoded_results.append(data)
+
+        return decoded_results
+
+    except FileNotFoundError:
+        print(f"❌ Error: Image file not found at '{image_path}'")
+        return None
+    except Exception as e:
+        print(f"❌ An error occurred during decoding: {e}")
+        return None
+
+if __name__ == "__main__":
+    # Ensure the script is called with an image file path
+    if len(sys.argv) < 2:
+        print("Usage: python decode_barcode.py <path_to_barcode_image>")
+        print("Example: python decode_barcode.py 20251017_22h35m26s_grim.png")
+        sys.exit(1)
+
+    # Get the image path from command-line arguments
+    barcode_image_path = sys.argv[1]
+
+    # Run the decoder function
+    decode_barcode_from_file(barcode_image_path)