25/25 [==============================] - 7s 269ms/step - total_loss: 1.0914 - illumination_smoothness_loss: 0.0127 - spatial_constancy_loss: 0.2993 - color_constancy_loss: 0.0780 - exposure_loss: 0.7014 - val_total_loss: 1.3547 - val_illumination_smoothness_loss: 0.0189 - val_spatial_constancy_loss: 0.2642 - val_color_constancy_loss: 0.0441 - val_exposure_loss: 1.0275