*4.3. Computational Complexity*

The computational complexity of the proposed HANet and the other methods was estimated from tests on the NJUD dataset. It takes approximately 4 h to train HANet using an Intel i5-7500 CPU at 3.4 GHz and an NVIDIA GeForce GTX TITAN Xp GPU. HANet achieves saliency detection at 11.6 fps for images of 224 × 224 pixels. Therefore, our model has low computational complexity and can be applied to real-time image processing systems.
