How to photo edit underwater pictures - the basics
6 - alter saturation
saturation is altering the intensity of colours (or hues)
Photo edited without saturation
Try increasing the saturation a bit. This alters the strength of the
colours. Altering vibrancy alters palers colours more whereas saturation alters the
strength of all colours.
Photo edited with saturation
Note the difference in the colour of the sand in the lower left corner and the blue on the
fish. Don't overdo the saturation
It's very easy to end up with some bright, artifical looking thing.
The picture below is + colour balance + 10% contrast + 10% vibrancy
Altering the saturation is simply a matter of dialling more or less in, using a scale or similar