25/25 [==============================] - 7s 269ms/step - total_loss: 1.0916 - illumination_smoothness_loss: 0.0130 - spatial_constancy_loss: 0.3005 - color_constancy_loss: 0.0782 - exposure_loss: 0.7000 - val_total_loss: 1.3530 - val_illumination_smoothness_loss: 0.0156 - val_spatial_constancy_loss: 0.2606 - val_color_constancy_loss: 0.0428 - val_exposure_loss: 1.0341