-For strong sky colors:
In hue vs sat, raise blue sat, then in hue vs lum, lower the lum of the blue. this will increase the chroma of blue without raising saturation. (change
the curve shape to restrict, expand the selection.)
you can also get a similar result from an adjustment layer set to transfer mode ‘color ‘with levels white output lowered 20%. Any clip underneath where you’re
attempting to raising saturation will get color compressed and get fatter in the vectorscope but not extend outwards. This is similar to how film/arri digital cameras respond and how they restored the good, the bad and the ugly.
-For removing haze:
You can use these steps in other programs. But here’s how its made in ae/photoshop/premiere
1. duplicate your main layer
2. create new curves effect above, drag the gamma
down around midpoint 15% so image gets darker
3. with the white mask of the previous effect
selected, go to image, apply image(leave defaults as multiply)
4.create new effect curves above it, raise its black
point up halfway so you’re not clipping black.
5. new curves effect above, set transfer mode to multiply(very important step). create a custom curve that starts at the left black histogram and sharply
tapers at the white point.
-How it works. The apply image reads off the original and create a chroma midtone effect and the multiply transfer of the top curve reads it back linearly. in
essence, un-wraps it again.You get all the benefits of haze removal and strong
colors with none of the tonal loss usually associated with complicated luma mattes or mushy multiplied colors.
-Fixing underwater footage:
you can try RGB mixer or for harder stuff, read this
thread:
https://forums.creativecow.net/readpost/3/1010624