Add logs to mean image generation

Author: youennmereljourdan

postprocess/postprocess_service.py

@@ -75,6 +75,7 @@ def get_mean_image(self, inputs: list, batch_size: int) -> nib.Nifti1Image:
                 total_sum += batch_sum
 
             count += len(batch_paths)
+            print(f"Summed [{count} / {total}] images")
 
         print("Calculating the mean image...")
         mean_image = total_sum / count