Update app.py

app.py

@@ -11,7 +11,7 @@ def resize_image(img, max_size=(3000, 3000)):
     :param max_size: Maximum dimensions (width, height)
     :return: Resized PIL Image object
     """
-    img.thumbnail(max_size, Image.ANTIALIAS)
+    img.thumbnail(max_size, Image.Resampling.LANCZOS)  # Use LANCZOS for high-quality downscaling
     return img
 
 # Logistic map function