Apply sharpening to an image

- [Instructor] Sharpening is a really interesting tool … because in a sense it doesn't sharpen at all. … What it does do is increase the contrast … between the pixels, the light and the dark. … And we're looking at our sharpening tool right here. … We're inside the Details tab right up here at the top. … And this is a very good sharpening tool. … I like it a lot. … So we have four sliders inside the tool. … The amount would be the intensity … of the lights and the darks. … The radius is how far out from the pixel area … does this correction, or this adjustment, … I should say, radiate? … Threshold usually just stays at one. … Threshold does allow you, … if you really know what you're doing, … to have the tool affect other areas than just … the bright area and the dark area. … It can get into the middle tones of that correction. … Remember, we're talking about the area between … the pixels here. … And then Halo Suppression, sometimes you can get artifacts … as a result of sharpening, and Halo Suppression can help. …