Edge
sharpening adds a mask that targets the contours of an image, allowing more aggressive
sharpening with fewer side effects. Like Edge
sharpening, High Pass
sharpening (named for the filter used to produce the effect) targets contours in an image, but it does so without the need for a mask. Unlike Edge
sharpening, the contour accentuation it produces is soft, feathered and wide. The effect is substantially different and can be used for many creative effects. High Pass
sharpening is very similar to the effects of ACR and Lightroom's Clarity slider, but it offers more control and more varied effects.