Update monai/networks/layers/filtering.py

Co-authored-by: Eric Kerfoot <17726042+ericspod@users.noreply.github.com>
Signed-off-by: Abdoulaye Diallo <113793273+getrichthroughcode@users.noreply.github.com>

Author: getrichthroughcode

monai/networks/layers/filtering.py

@@ -220,7 +220,7 @@ def __init__(self, spatial_sigma, color_sigma):
             spatial_sigma = [spatial_sigma[0], spatial_sigma[1], spatial_sigma[2]]
             self.len_spatial_sigma = 3
         else:
-            raise ValueError(f"len(spatial_sigma) {spatial_sigma} must match number of spatial dims (1, 2 or 3).")
+            raise ValueError(f"Length of `spatial_sigma` must match number of spatial dims (1, 2 or 3) or be a single float value ({spatial_sigma=}).")
 
         # Register sigmas as trainable parameters.
         self.sigma_x = torch.nn.Parameter(torch.tensor(spatial_sigma[0]))