There are two modes, one of which is fully automatic, while the other has two controls to adjust the amount of processing and the threshold beyond which areas of the image are deemed to be hazy. For landscape shots, this processing tends to be applied towards the horizon where atmospheric haze pushes tones towards grey. It analyses the image and boosts the contrast of parts of the image that have less contrast to start with, while leaving more heavily contrasted areas unaffected. The new Haze Removal tool will be familiar to Creative Cloud users, and it makes a welcome appearance here.
^ The Dehaze tool (applied to the right half of this image) boosts the contrast only where it’s needed
