Update shadow_map.py

shadow_map.py

@@ -1,5 +1,6 @@
 import cv2, numpy as np
 from PIL import Image
+import tempfile
 
 def analyze_uv_exposure(image_path):
     img = cv2.imread(image_path, cv2.IMREAD_GRAYSCALE)
@@ -14,6 +15,9 @@ def analyze_uv_exposure(image_path):
             if mask[y, x] == 0:
                 pixels[x, y] = (255, 0, 0, 125)
 
-    annotated_path = f"annotated_{image_path.split('/')[-1]}"
-    overlay.save(annotated_path)
+    # Save to temp file instead of current dir
+    with tempfile.NamedTemporaryFile(delete=False, suffix=".png") as temp_file:
+        overlay.save(temp_file.name)
+        annotated_path = temp_file.name
+
     return round(coverage, 2), annotated_path