Adding a LUT in Post Production.
LUTs are fun things to add to photographs. LUT stands for Look Up Table. Basically a LUT is a preset or filter that changes the color of a picture. Below I have a picture with the Blue Day LUT. The LUT adds a filter that emphasizes the blues in the photograph.
Above is the photograph with no LUT and below is the edited with the LUT.
Want to learn more about LUTs? Here is a great resource.