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Digital photos shot at high ISO speeds often suffer from noise. And all digital photos have a slight softness due to the nature of imaging sensors. Like all imaging software, Adobe Lightroom and Photoshop have features for fixing these flaws. But using these features isn't always straightforward—and incorrect use of them can make a photo look artificial and overprocessed.
In this course, join Photoshop senior product manager Bryan O'Neil Hughes for an in-depth exploration of the noise-reduction and sharpening features in Lightroom and Photoshop. The course begins with tips for getting the cleanest possible images when you shoot. Next, Bryan details the process of making overall noise and sharpness improvements in Lightroom. The course concludes with a look at various advanced Photoshop techniques for localized adjustments and more.
Sometimes you don't have a lot of image to work with, and you need to make it larger. So this is an image off of the iPad 2, and if I were to double click on it I would see that there's just not a lot of detail here. Now before I interpolate it and make it larger, I need to fix it up as best I can. So for that, I'm going to use my favorite tools for that, which I've already covered, which would be camera RAW filter. And just really quickly, I'm going to cool it down and I'm going to come in here to my detail area. I'm going to zoom in, and I'm going to take care of as much of the noise as possible, while still preserving some of the detail.
And, this was a really tough one to sharpen, so I'm not even going to do that. Alright, now having done that, now I want to make it larger. And this has been a significant change in Photoshop as of CC. The Image Size dialog looks very, very different, but it also works very differently. So right now, you can see it's a pretty small image. It's 1,500 pixels wide. Let's go ahead and just double that and talk about what's happening. So yes, I'm getting a preview of before and after.
And if I hold the hand, I'll see before and after and any changes there might be to it. If I make this even bigger, 4,000. Those changes will become a little more apparent. So it would seem that this is a really simple dialog and there's not too much happening here, but I should explain. That behind the scenes completely automatically not only are we interpolating this and adding pixels but we're automatically reducing noise and artifacts as we go.
So you'll notice that on the edges of my face here, while there are a lot of sharp JPEG artifacts those actually get smoothed out quite a bit as we enlarge the image. So we're improving the image as we make it larger. Now, this is a very, very low res example. As with anything, the more information that's coming in, the more you'll be able to do with it. But I wanted to show it on a low res file, to show that even these muddy lines will hold together as we more than double the size. So, make sure that you reduce noise and adjust tonality and then, all you need to do is use Image Size.
Now, if you're on Photoshop CS6, this also works automatically. It isn't quite as powerful as it is in CC, but I think you'll find the results are still pretty compelling.
There are currently no FAQs about Noise Reduction and Sharpening in Lightroom and Photoshop.
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