Of all the tonal tools available to you in Photoshop, Curves is without doubt the most powerful. In fact, it can do most of the things that the other tonal tools do: it can lighten, darken, alter colors, set whites and blacks, boost contrast, correct color casts and more. Curves might just be the ultimate tonal tool.
Unfortunately for some, there’s another curve that gets in the way: the steep learning curve. Curves can be difficult to grasp for the uninitiated. You might even be tempted to disregard the tool and return to the simpler sliders and settings elsewhere. But anyone who spends a little time experimenting will be rewarded with a responsive, highly versatile tool that offers a degree of finesse like no other.
The Curves toolset features in…