How to Sharpen Images in Photoshop

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- Hey, guys, this episode I'm gonna show you how to sharpen an image in Photoshop. (upbeat theatrical music) Hey, guys, welcome to Kelvin Designs. My name is Kelvin and I design, and that's why it's called Kelvin Designs. Click right here to subscribe to my YouTube channel and get all these episodes as they come out, and click down here to get the source files to this episode and every other tutorial that I do for free. In this episode, I'm gonna show you how to sharpen an image in Photoshop. There's a bunch of different ways using different tools, different filters, and why should you use some over others, and sometimes should you mix them. I'm gonna go over a few different images and show you different techniques for different problems, how to salvage a blurry photo, or how to accentuate some detail that you wanna focus attention to. So let me show you. All right, so once you've downloaded the files to follow along on this tutorial, you'll get this folder here. And let's open up this first one in Photoshop. I'm in the Essentials workspace. If it doesn't look like this, click on Essentials down here. And you can also reset Essentials, which will make it come back to this in case you've changed it. And you might note that I'm in Application Frame just to hide everything in the background. That's over here in the Window menu, Application Frame. All right, so you can see I'm at 16% down here. That means I'm zoomed out, so I'm gonna hit Command + Plus a couple times. Here we go. 100. On a PC, that's Control + Plus. All right, so the first sharpening method I'm gonna show you is unsharp masking, which is probably the most common. To do this, let's go ahead and make a copy of this layer by dragging it to the new layer icon and then right-clicking over here and Convert to Smart Object. This is so that we don't do anything destructive, okay? We're gonna down to Filter, Sharpen, and Unsharp Mask. All right, I usually start at a hundred and, let's say, 0.3. This is my starting point on Unsharp Mask, and you can see before and after. It's very, very minor. You probably can't see anything in the video. And this is where I like to start. There's already quite a bit of detail in this photo, so let's go maybe up to something like 130, and let's bring this up to 0.8, something like that. Before, after. Now I'm getting quite a bit of a detail. Holding down the Space Bar gives you the handle so I can move around and look around. Before, after. You don't wanna overdo it. In this case, there's so much detail, and it's not getting too, it's not getting too distracting. It's a little bit, but it's pretty good. It's not bad. All right, so the radius is what gives you the thickness of the sharpness on the edges between colors? So if I bring this up, you'll see that it almost gives you a glowing effect or a really bad HDR type of look. You don't want that unless you're trying to do some illustrative sort of look. which is not really what we're covering here. But so you wanna keep that radius really small, and the higher resolution you have, the thinner you can go because you'll have very thin lines determining the detail, right? Now the intensity or the amount up here is how much you wanna sharpen, okay? So how distinct those little lines are going to be, okay? I usually like to be between a hundred and 150, 60, or something like that. Again, you don't wanna overdo sharpening. It's overly done everywhere, and it's not necessarily very pleasant. Okay, and the threshold I keep at zero, all right? So let's do 130.8. That's pretty good for this image to see before and after. Okay, now, as you can see, because I converted to Smart Object, it's down here, and if I say, "Oh, you know what, it's a little too sharp," double-click into here and I can turn it down to 120 or 0.7. Hit OK, and we're good. That was a nondestructive way of doing that. All right, so that's the unsharp masking, probably the simplest and easiest way of sharpening an image, okay? All right, so to get to our next image, let's just go to the Finder and open up the second one here. Whoops. Over here. All right, so this is kind of an urban landscape. Let's zoom in to 100% again. I recommend doing all sharpening at 100% or more, but 100% is really good. All right, so this is kind of an urban landscape, which is where I use the sharpening that is available with Camera Raw. Now please note that this technique is only available with Photoshop CC. Anything prior to that will not work this way. If you do not have Photoshop CC, you can just skip to the next sharpening method. All right, so first thing I'm gonna do is duplicate this layer, and then right-click it, and convert to Smart Object. Okay, and we're gonna go to Filter, Camera Raw Filter up here, okay? All right, and, once again, let's zoom in. Get a better look at what we're doing. I wanna see some of this brick, some of these bricks here. Okay, a couple of things. First off, you got in this third panel here, you have sharpening or the detail. You have sharpening and noise reduction. Once again, it's kinda like the unsharp masking. The amount here is the intensity, and the radius down here is how fat those lines are, okay? I like to keep this, once again, very low on the radius and a little higher on the amount. And you can keep the detail there. Now you can see that we've gotten... You're gonna hold on the Space Bar to move around. We're getting a lot of grain coming out here, okay? Pretty strong. We can actually click over here on this little, cycles between before-after views here so we can get a sense of how it was and where we're at now. All right, so let's try to turn down the radius a little bit, turn it up to see what it does. You see, it gives you that kind of a HDR look, which you don't really want. All right, let's turn down the sharpening. We just want a little bit. It's kind of nice in bricks, something like that, okay? Now there's another thing. Imagine I'm sharpening up here. You see this in the sky here, you get a bunch of noise? So you got masking, all right? And the masking is basically gonna make it so it doesn't sharpen everywhere. If you hold down the Alt or Option key while you hold down the masking, everything that's black over there means it won't get the sharpening, okay? So there you go. Now the sharpening is still on the bricks but not in the clouds, which is nice, so you don't have all that noise and all the artifacts showing up in the clouds. You can bring that up a little bit more. Okay, all your shadows are protected and all your highlights are protected, which is nice. Okay, and you can see that we've sharpened maybe a little too much. I would still tone this down. And let's take a look down here at the buildings. So before, after. Okay. There's another thing. So I would still tone this... I still feel like this is a little too strong and it's pretty sharp to begin with, but we get a little more sharpening, so that's pretty good. All right, another thing you can do, and it's not really sharpening per se, but it gives you a feel of sharpening, which is clarity. Just increase the clarity a little bit, okay, something like this, and it gives you that sense of sharpening, okay? Hit OK. Now, before, after, okay? All right, we'll get into fine tuning some of these sharpening methods, but for now, I want you to see this is a little, it's actually quite a bit too strong, but that is the camera raw method, okay? Let's go back to the Finder and open up the third image. And in this image, let's go ahead and make a duplicate. Now for this tool, so I'm gonna show you the sharpening tool. On this method, this is destructive. You cannot do a Smart Object and go ahead and apply it on that because it will not work. This is destructive. And so you go here to the little, it looks like a drop. Click on it, you get the Sharpen tool. Okay, and so you have Protect Detail, I highly recommend you check that, and Sample All Layers. Sample All Layers means we're gonna go ahead and create a new blank layer, and by sampling, it means it's gonna take everything. That's if you have a bunch of layers, it's gonna put it all into this new layer, and it's gonna apply the sharpening to it, okay? I'm gonna go ahead and just reduce my brush size just a little bit. My hardness down to 25, okay. And I think we're pretty good. The strength is 30%, which is pretty strong, but it's pretty good. All right, so I'm just gonna start brushing over here on the eyes and on all that little detail. Move around. Let's go get his ear. Here up in his fur. Up here like this. Okay, on his nose and his mouth. Those paws. I mean, there's a pretty, there's a pretty shallow depth of field here where this is very sharp and right behind his chin it's blurry. So we already have a pretty shallow depth of field, which means that whatever is in focus is gonna become extremely in focus, like his eyes and his forehead here, a little bit of his ears, his paws. That looks like a piece of walnut. All right, something like this, okay? Maybe sharpen a little bit of his fur over here even though it is a little blurry. Okay. All right, let's take a look. Before, after. Before, after. It's pretty impressive what this tool can do. It has been completely redone since the old days, and the algorithms, the method that it uses to create that sharpness, is actually unlike any other. I highly recommend this, especially for portraits, not just squirrels. So, anyway, this looks pretty nice. All right, so let's go back to the Finder and open up the fourth image. All right, so I'm gonna show you something, a method that you probably may have seen before, and it's using the High Pass. To do that, the first thing you do is you duplicate this, your layer, and let's go ahead and convert it to a Smart Object. Okay, and let's go ahead and name it Blur. And let's go ahead and duplicate this one again, and let's call it this one High Pass, okay? High Pass being at the top, Blur in the middle, and your background back there. Let's hide the High Pass for now. Go to Blur, and just simply go to the Blur and Gaussian Blur, and let's just do something like three pixels for now, okay? It's pretty strong. I did the Smart Object so we can go back and say, "Oh, you know what, it was a little too strong. Let's undo that," okay? Hit OK. And now let's go to High Pass, and Filter, and Other, and High Pass right here. Let's keep it the same, three pixels, like we did the Blur, Hit OK, and let's go over here in your blending modes and put it on Linear Light, okay? So you can see... Let's just hide these. You can see before and after. Pretty remarkable, right? Before, after. Now we can actually select these two with the Shift and then create a group by clicking the little group icon here. We can call this Sharpening. Okay, now it's in a group, which means that if I create a mask like so on the group, we can go ahead and fill the... Here we go, fill with, let's fill it with black. Okay, that's the mask. Now it's hiding everything that's within that group. So if we take a brush, b for brush, and let's just make this a little bit smaller. Something like, that's decent. Okay, now if I go in here using the white, okay? I'm basically going to reveal in the mask. So I'm saying I wanna be sharp over here. I wanna be sharp over here. Over here, over here. Maybe a little over here. So I'm really selecting where I want it. I'm not applying it everywhere. I don't need to sharpen this area in the background that's actually out of focus because that would just bring out more artifacts and grain and noise and so on, all right? So before and after, all right? So the nice part about creating Smart Objects is if you're like, "Well, it's a little too sharp," once again, let's zoom in 100%. It's just too sharp. It's too much. You can go in here, double click the High Pass. Let's bring that down to two. Okay, that's better. Okay, and let's go to the Gaussian Blur and bring this down to two. Okay, that actually sharpened it a little bit more. Let's try to bring it to five, see how that looks. So it's getting a soft edge around here, almost like a diffused lighting. It's kind of interesting. Okay, I'm gonna bring us down to, I'm gonna bring it back to three. I kinda liked it like that, okay? All right, zoom out. And there you go. So that's the High Pass method, okay? Now I'm gonna open up this next image, and I wanna show you that you can actually mix all of these methods, and it's not like one method is better than another. It's depending on what you, what's your photo's like, if it's just a small area, if you have a lot of detail, and so on. So here we have a photo of this camera. Very shallow depth of field. It looks like we have some chromatic aberration. And if you zoom in here, you have some, yeah, you see that chromatic aberration. And usually using the unsharp masking, that usually has a tendency to really accentuate the chromatic aberrations. All right, one thing I recommend when you have this is using unsharp masking, but we're gonna go through another mode, all right? So what this means is you go to Image. Once you have a flattened image, you go Mode, and instead of RGB, you got to Lab. All right, now without getting into too much detail of what everything is, once you click on your channels here, Lab is comprised of lightness, a and b. A and b is your color, and lightness is essentially all the detail. If I turn off a and b, it looks like a black and white image, and if I turn off lightness, it's just a bunch of color, all right? Or lack of. So if I go to just my lightness channel but I show all of them affecting just the lightness, and if I go to Filter and Sharpen and Unsharp Mask, I will be able to sharpen this image, right? Without affecting the color at all. Let's zoom in a little bit so we can see what we're doing, 100%. Granted, I'm bringing out a little too much noise in here, but you see, those the chromatic aberration that you see, which can be fixed individually, but if I wasn't in the lightness, those red or magenta lines would actually present themselves even stronger, okay? So once you're done with this, it's a little too much but just to show you, let's go back to 120 and let's go down to 0.7, okay? All right, and then once you're done with your sharpening, just go back into RGB, and there you go. Now you can go back and manipulate your image as you wish. It's a nice, neat little trick: go into Lab mode, just selecting the lightness channel, and then manipulating that, and then coming back into RGB. Okay, and let's take another image over here. Okay, in this case, we can do a number of, we can actually kind of just mix what we wanna do. So let's start by zooming in. I'll move him over, a little over this way. And I'm gonna create a new layer. I'm gonna go to the sharpening tool, Sample All Layers, Protect Details, strength: 30%. That's not bad. Let's zoom in a little more, okay? And let me go ahead and sharpen him here and here, around his mouth, around his whiskers. Up here, the ears. Okay, and his fur. Not necessarily everywhere. I want it to look like the parts that have strong detail, something like this. Okay, let's get some of that fur. As soon as you see detail, it's really nice to have sharpness. It kind of accentuates that sharpness. All right, so it's really his face and his eyes the most, okay? Now instead of just leaving it like this, and just to compare it, we'll make another. I'm gonna duplicate that, okay? Hide that. I'm going to Filter, Other, High Pass on the layer that I had, right? We'll do two pixels. Pretty strong, but let's just try it out, and then change this to Linear Lights, okay? So I have two, I've mixed now two different sharpening methods. Granted, it's a little too sharp. See, if we compare before, after, you see this is just a sharpening brush, and this is sharpening brush plus the High Pass, okay? And we could if we found that it was a little too much, well, you can always just turn down the opacity like so or you can go and mask areas out. What I'm trying to show you is that not every method is exclusive, and it's just you can actually mix different parts, okay? So something like this. And let's take up another image over here, seven. And in this case, we can mix different areas. Let's try, let's duplicate this. And I'm not going to make it a Smart Object because I wanna use the sharpening tool. So I'm gonna start off by using the sharpening tool. Let's zoom in a little bit. Okay, I don't want everywhere. You know what, for this one, I'm not actually gonna use the sharpening tool. I'm just going to go straight to Camera Raw. So Convert to Smart Object, Filter, Camera Raw, all right? And let's go to the sharpening. Let's sharpen a little bit. Zoom in a little bit, Command + Plus, and Space Bar for the Hand tool. Okay, and let's just get a comparison so we can see the before and after. I wanna see what it looks like. All right, so increase the amount a little bit. Not bad. Now I don't want it in the sky there, so let's go to the masking. Hold down the Option key. And you see it really, all those flat areas kind of just go out and it's just doing the more, the lines really. Okay, let's keep the radius around one. Increase that a little bit. All right, it's not too bad. And once again, I know it's not really sharpening, but if I increase the clarity just a little bit, it gives you that sense of sharpness that's pretty nice. All right, and let's hit OK. All right, okay, now there's a very important thing. Let me just zoom in before I get into... All right, it's decent. There's still quite a bit of noise. It was already blown up a little bit. One thing I wanted to show you, it's a little more complex but very important, is you usually do not want to sharpen highlights and shadows, and that's because those areas usually will bring out artifacts and noise and grain. So what you wanna do is make sure that your sharpening is isolated to your midtones, so anything that's not purely dark or purely whites, okay? So to do that, you take the layer that has the sharpening on it, and you double-click the area that has the name; it'll bring up the Layer Style option. And here it says Blend If, okay? Now if the underlying layer is black... Now let's zoom in a little bit so we can see how this works, okay? Now, for example, in these darker areas, you'll see, you see how it's taking away all those dark areas? And now I don't have all that strange chromatic aberration and artifacting and all that noise. And the same in the light areas. You bring it up this way, and you'll see at one point it stops right there. You can see it there, right? So like before, after. Now it is very sudden, meaning it's going from this to this in a very sudden way. So to make it gradual, you hold down the Alt key and you kinda bring this out here. So you see now you have it's from here to here in a gradient. It's saying everything that's white from this point on, it's not gonna apply, and everything that's black. So you do the same with the black, hold down the Alt key, bring it up this way. And let's see before, after, okay? So we're not sharpening the little noise that's in the black areas, which we were before, okay? Something like this. Maybe a little too strong, so we can bring it down just a notch, okay? All right, and so that will be applied. And if I add another filter, it'll still maintain the fact that it's not going to be applied on the dark areas, very dark areas and the very light areas. All right, let's take a look at our last image over here. Okay, so we see once again we have a shallow depth of field, but it's a little blurry. In this case, I would once again use the sharpening tool. So new layer, go to the sharpening tool. Make sure Sample All Layers is checked, Protect Detail. 30% is pretty good. I'm gonna need a much larger brush. Let's do 1,500 pixels, hardness 20. Okay, and let's start off a little lighter, like 20%. And I'm just gonna click here, click here. This is a pretty big image, as you can see. Something like this, okay? Zoom in a little bit to see what we're doing. All right, and bring it here. Let's see. Before, after. All right, I'm on 20%, so it's very, it's doing it extremely progressively. Light touches, which is nice. That way I don't accidentally over-sharpen something. Okay, keep doing that. Clicking, clicking. Let's take a look. Let's zoom in a little bit. It's actually processing. So this algorithm is actually pretty intensive. So don't worry if your computer slows down a little bit as you're doing this, especially with very large images. The process is very, very effective, but it takes a little bit of computer power. All right, so let's take a look before, after. So it's really in that little detail. You don't want it to look like everything is super sharp, but look at that little detail. Before and after. You have that. Now, once again, I actually want to, I wanna make it, I'm gonna make this and use the High Pass filter again. So Filter, Other, High Pass. Let's keep this down to 1.5 pixels, and then Normal, and Linear Light. Look at that. Before, after. So now I've really accentuated the fact that I'm blurry around here and sharp over here. I could tone it down using the opacity over here, so let's say 70%. And that's better, okay? And that covers every method of sharpening. All right, guys, I hope you learned something in this episode. And if you did, don't forget to like the video or share it on Facebook and Google+. It really helps me out. And I'll see you in the next episode.
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Channel: Kelvin Designs
Views: 1,688,618
Rating: undefined out of 5
Keywords: Photoshop, Sharpen image, sharpen photo, tutorial, kelvin pimont, retouching, camera raw, unsharp mask, high pass
Id: _tQu4OMlYso
Channel Id: undefined
Length: 25min 39sec (1539 seconds)
Published: Fri Feb 12 2016
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