The Unsharp Mask filter is a key Photoshop tool for enhancing soft images. But how do you use Amount, Radius and Threshold sliders? Here's the definitive guide to this powerful filter.

The Curves adjustment is Photoshop's main tool for editing hue and tone. It's an essential part of the Photoshop user's toolbox, so here's a quick guide for how to get the best out of it.

The Select Color dialog allows you to pick a colour range within an image, which you can then manipulate. Here's how it's done.

How to make a wood texture using Noise, Clouds, Gaussian Blur, the Wave filter and the Liquify filter.

How to use Photoshop's Vanishing Point filter to clone objects around a corner.

How to use Photoshop's Spin Blur filter to make a roulette wheel look like it's turning.

How to use Photoshop's Replace Color dialog to make selective changes to any scene.

How to use Photoshop's Lens Correction filter to correct a skewed image.

How to use Photoshop's Liquify filter to change not only the shape of a face, but the expression.

How to remove fisheye distortion using Photoshop's Adaptive Wide Angle filter.

How to use Photoshop's Levels adjustment to correct a photograph.