split smoothness function out

losses.py

@@ -44,6 +44,12 @@ def enhanced_loss(inputs, outputs, alpha):
     # Encourages the model to keep relative distances from the RGB space in the transformed space
     distance_preservation_loss = torch.mean(torch.abs(rgb_norm - transformed_norm))
 
+    # Combined Loss
+    loss = alpha * distance_preservation_loss + (1 - alpha) * smoothness_loss(outputs)
+    return loss
+
+
+def smoothness_loss(outputs):
     # Sort outputs for smoothness calculation
     sorted_outputs, _ = torch.sort(outputs, dim=0)
 
@@ -51,7 +57,4 @@ def enhanced_loss(inputs, outputs, alpha):
     first_derivative = torch.diff(sorted_outputs, n=1, dim=0)
     second_derivative = torch.diff(first_derivative, n=1, dim=0)
     smoothness_loss = torch.mean(torch.abs(second_derivative))
-
-    # Combined Loss
-    loss = alpha * distance_preservation_loss + (1 - alpha) * smoothness_loss
-    return loss
+    return smoothness_loss