Photoshop CC new version comes with dehaze feature. You can refer to this post: How to use Dehaze in Photoshop
This is before
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/DSC01130-1024x683.jpg)
This is after
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/Feb-BobLin-1130-Ipanema-Beach-1024x683.jpg)
If you use old Photoshop or you want to control defog manually, you may have many other options.
- Exposure levels correction. To do that, go to Image>Adjustment>Levels.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog6.jpg)
In the histogram, move the left slider in towards the end of the histogram until the object becomes more visible. You can do the same with the right slider.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog7.jpg)
2. Unsharp mask. To do that, go to Filter>Sharpen>Unsharp Mask.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog1.jpg)
You may try a couple times starting Amount 10% and Radius 20 Pixel; then Amount 20% and Radius 40 Pixel; finally 20% and 80 Pixel.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog3.jpg)
3. Contrast. To do that, go to Image>Adjustments>Brightness/Contrast. Adjust the Contrast, for example 60.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog8.jpg)
4. Some people say we can try High Pass and Overlay. To do that, go to Filter>Other>High Pass.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog4.jpg)
In Layers, change Blending Mode from Normal to Overlay.
![](http://www.quicksetupguide.com/blog/wp-content/uploads/2019/03/defog5.jpg)