Understanding the Radius value


show more Understanding the Radius value provides you with in-depth training on Design. Taught by Deke McClelland as part of the Photoshop CS3 One-on-One: Beyond the Basics show less
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Understanding the Radius value

Okay so by now you probably have a pretty rough understanding of how these sliders work, the amount value controls how much sharpening you will apply from the Unsharp Mask dialog box. The threshold value, we are skipping one here the threshold allows you to avoid sharpening grain inside the image so you raise that value in order to skip the grain and focus in on the details. And then there is a radius value which allows you to determine the thickness of the edges.

Of the three it's the trickiest to understand. So let's go ahead and cancel out of the dialog box for a moment in order to return to the original version of the snake and I am going to go ahead and make this darn navigator palette a little smaller here and switch over to the Channels Palette so that we can see our Red Green Blue channels inside of the image and bare in mind that Photoshop when it's working through the RGB image is actually sharpening each color channel by the exact same amount.

So when you are operating on ...

Understanding the Radius value
Video duration: 4m 31s 10h 47m Intermediate

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Understanding the Radius value provides you with in-depth training on Design. Taught by Deke McClelland as part of the Photoshop CS3 One-on-One: Beyond the Basics

Subjects:
Design Photography
Software:
Photoshop
Author:
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