     }
   }
 
-  if (period <= 0) 
+  if (period <= 0)
     return false;
 
   // TODO Check if this compares the extension correctly.

          images.push_back(image);
      }
    }
  } 
  catch( OutOfFilesException &exc) 
  {
    if (images.size() == 0)
      return false;

  if(sync_error == cudaSuccess && async_error == cudaSuccess)
  {
    signatures = cuda_get_zernike_signatures(images, zernike_data, cuda_images.count);
  }
  else
  {
    if (sync_error != cudaSuccess)
      print_cuda_error(sync_error, "Synchronous CUDA error occurred");
