use regex to remove non-alphanumeric characters

app.py

@@ -112,9 +112,9 @@ def process_image(img_path):
     os.makedirs("inference", exist_ok=True)
 
     # Remove non alphanumeric characters
-    image_path = re.sub(r"\W+", "", img_path)
-    image_path = str(datetime.now()) + ".png"
-    image_path = image_path.replace(" ", "_")
+    image_path = str(datetime.now())
+    image_path = re.sub(r"\W+", "_", image_path)
+    image_path = image_path + ".png"
 
     # Join to directory path
     inf_image = os.path.join("inference", image_path)