25/25 [==============================] - 7s 275ms/step - total_loss: 2.7249 - illumination_smoothness_loss: 0.1149 - spatial_constancy_loss: 0.0030 - color_constancy_loss: 0.0057 - exposure_loss: 2.6013 - val_total_loss: 2.7764 - val_illumination_smoothness_loss: 0.1291 - val_spatial_constancy_loss: 0.0042 - val_color_constancy_loss: 0.0011 - val_exposure_loss: 2.6419