As I look at the Figure 2. Region based saliency maps, I notice the high salience regions are the brightest area on the retinal image. I am not sure whether th

As I look at the Figure 2. Region based saliency maps, I notice the high salience regions are the brightest area on the retinal image. I am not sure whether that is just a bright regions of the retina or it is the reflection of the light illuminating the retinal scanner. In any case, it is interesting to me that this seems to be the regions that helps discriminability the most (if I am understanding correctly), which is surprising to me.