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>> Male Speaker: In this movie, we will learn about one of the cool new features in CS2 and that is Smart Sharpen. And when I say cool, I mean cool. The reason is sharpening is so essential. Every image needs to be sharpened, whether it's digital capture or film, it's one generation away from the actual scan. So we need to sharpen it. Digital camera, we need to sharpen it because the way that the image is captured on the sensor is on top of the sensors, actually in red, green, or blue filter. And then have all three filters on top of each sensor.
So therefore it's actually interpolated or making up information from the sensors around it. So there's inherently softness to digital images which isn't a problem, because we can sharpen them. And there are a lot of powerful ways to sharpen those images so that they look tack sharp. Okay, how the heck does Smart Sharpen work and what is the deal with Smart Sharpen? Well, let's take a peek at the interface. Filter > Sharpen > Smart Sharpen. And it is smart I guess as they say.
Okay, zoom out here a little bit, and I'm clicked on the wrong layer. So I'll go to Filter > Sharpen > Smart Sharpen. Okay, so we can see that we have these gray bands in the dialog window and in the background. And we're going to take it to the Basic tab. From the top down, we have OK, Cancel, Option changes that button to Reset, Alt in the PC. Want to see the preview. We're going to start on Basic and then get more complicated as we go.
The Amount is just like the Amount inside of, let me go back to default settings, the amount is just like the amount in Unsharp Mask. We'll bring our Radius up, and we'll see that then the sharpening is applied at a specific radius, so that's kind of like the Intensity slider. The Amount and then how far it reaches, how intense it reaches out to other areas. By default, this tool is set to use a Gaussian Blur algorithm.
Which is identical to Unsharp Mask. So there's no real need to use this version of Smart Sharpen because there's nothing new about it. Notice that the threshold is now gone. Built into this sharpening is the threshold, and so it's doing a little bit more work behind the scenes for us, which is great. Down below Gaussian Blur we have Lens Blur. And Lens Blur is phenomenal. Let's take a look at an exaggerated version of sharpening. And here we have Lens Blur, compare that with Gaussian Blur.
Check out how much cleaner the Lens Blur is. Maybe if we diminish that a little bit and go to Gaussian Blur here, you can see how much further the reach is. Lens Blur is much more intelligent, much more wise, much more effective. Also take a look at Gaussian Blur, what happens in the corners. Notice the rounding of the corners there? How does Lens Blur deal with that? No problem, no problem. A much tighter fit, it reels it in much better. The one underneath that is Motion Blur.
Now this one is pretty tricky because you have to be able to determine the Angle. Look at how the sharpening changes; exaggerate it, depending on the Angle. So it's determining the sharpenings from top to bottom versus left to right and so on and so forth. This is the hardest version to use and frankly, I haven't found much use for it because the Angle of Motion Blur is very hard to determine. Okay, as a way of review, let me pull up a sample file for you. So as a quick review on the interface. We have from the top down, Basic and Advanced, we're going to want to use Advanced.
And I will talk about that more later. The reason is it gives us access to work on the shadow and highlight areas of our sharpening, kind of like our blend modes, we saw Unsharp Mask which was darken and lighten. So then we can target specific areas, really cool. Down below we have the Remove Gaussian Blur, which is just like Unsharp Mask. Lens Blur, that's the best way to sharpen with this tool. And then Motion Blur. It's difficult to pick the Angle so it's not that effective to sharpen using Motion Blur.
There is a checkbox button at the bottom that just says More Accurate. That's not always better, and I'll show you why when we start working on images. And which we'll do in the next movie, and I'll catch up with you then. And if you haven't taken a break recently, make sure you do so. Blink, stretch, walk around, and then come on back and we'll look at how Smart Sharpen works.
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