Must be divisble by 16

app.py

@@ -48,9 +48,9 @@ else:
 
 def calculate_optimal_dimensions(image: Image.Image) -> tuple[int, int]:
     width, height = image.size
-    # Ensure dimensions are multiples of 8
-    width = (width // 8) * 8
-    height = (height // 8) * 8
+    # Ensure dimensions are multiples of 16
+    width = (width // 16) * 16
+    height = (height // 16) * 16
 
     return int(width), int(height)