25/25 [==============================] - 7s 276ms/step - total_loss: 1.2015 - illumination_smoothness_loss: 0.1149 - spatial_constancy_loss: 0.2766 - color_constancy_loss: 0.0740 - exposure_loss: 0.7360 - val_total_loss: 1.4667 - val_illumination_smoothness_loss: 0.1168 - val_spatial_constancy_loss: 0.2456 - val_color_constancy_loss: 0.0390 - val_exposure_loss: 1.0652