25/25 [==============================] - 7s 276ms/step - total_loss: 1.2311 - illumination_smoothness_loss: 0.1449 - spatial_constancy_loss: 0.2720 - color_constancy_loss: 0.0731 - exposure_loss: 0.7411 - val_total_loss: 1.4889 - val_illumination_smoothness_loss: 0.1299 - val_spatial_constancy_loss: 0.2331 - val_color_constancy_loss: 0.0358 - val_exposure_loss: 1.0901