Before revision:  The area under the receiver operating characteristic curve is 0.754 for the baseline model and 0.782, 0.785 and 0.789 for multi-task models with border, color and asymmetry respectively.
After revision:  The area under the receiver operating characteristic curve is 0.754 for the baseline model and 0.811 and 0.808 for multi-task models with border, color and asymmetry respectively.