Top 10 Tricks for Photo Editing Beginners (GIMP) | Christopher Navarre | Skillshare

Top 10 Tricks for Photo Editing Beginners (GIMP)

Christopher Navarre, Software Instructor

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1 Lessons (24m)
    • 1. Top 10 Things Beginners Want to Know How to Do GIMP Mega Tutorial

      24:19

About This Class

The aim of this class is to help new GIMP users quickly learn how to recreate many useful effects in a condensed 25 minute session.

We're going to cover topics in this sequence.

1. Remove Background
2. How to Create Guides
3. How to Target Zones with Color Changes
4. Make a Selection from a Path
5. How to Remove Acne
6. How to Crop an Image
7. How to Brighten Up Colors in an Image
8. How to Add Shapes and Symbols (Arrows, etc)
9. Drop Shadow
10. How to Use Perspective to Put a label on an object / screen

Transcripts

1. Top 10 Things Beginners Want to Know How to Do GIMP Mega Tutorial: Hello, everybody trust here. And in this video, I hope to answer many of your questions with 10 things. Beginners want to know how to do inside them. So the first topic we're gonna be talking about is how to remove a background from an image . So there are many selection tools available for you to use inside of Kemp, but the one that I prefer to use for topics such as this is the scissors Select tool. Because when you take this is there's select tool and you zoom in such a control middle mouse wheel. And then when you start clicking around the body, trying to get a rough shape toe, isolate this person from the background. You're going to notice that in between two points, it's going to automatically determine what the size and shape it's going to try to automatically determine the outline off the shape you're trying to separate. So it doesn't need to be a person. It could be a box, really any ship, even complicated ones. It's just that the more complicated the shape is, the more points you gonna have to set up so that I can figure out roughly where the edges are now any place that you have an issue, such as where, let's say you need to add at the point you can simply left click on the line using this system tool, and if you already have a point, you can drag it around. And whenever we let go of a point, it's gonna automatically be calculate between the adjacent points. So we get a really good outline off the person's body in this case. So I'm going to keep going around here rather quickly, and you'll see just how powerful this is your select jewel. Vilnius. So here's another point where I need to add in an extra because it's kind of going off of the person. Skin isn't gonna left quick in here at another point during that close to the skin, and I remember we need to do it a couple more times, so you just kind of keep adjusting. Maybe we drag some of the other points as well. Now, in order to complete the circuit, we simply need to click on the initial point. And now with that, we have a full selection off this person. If we click inside the boundaries now, what's gonna happen is it's gonna convert this scissors selection into a regular old selection. Now, with the image layers selected, I'm gonna hit control acts to cut that person out, and I'm gonna haste it onto a new layer. So hitting new layer. And now I just a control V to put the person back in. And now, with the original background layer, I can simply disable that you'll notice, of course, that inside the person's arms and between is like in his arm over here, that part of the background still remain. So, in order to cut out the background from the areas and site of the person, we're going to go ahead and use the same process. So scissors here and I'm gonna go around this area now when you have very thin things here , like his ear buds going through, this is the stool might not be the ideal tool to actually select this area. So you can either choose to just kind of cut that out and not worry about it, or you can get more precise with some other tools. So let's just go ahead and work here and try to get a rough out of this. So for the sake of showing you guys, I will try to get this area as well so that the here, but still show in the final image and we'll get this Section two and then we'll worry about the earbuds. Just try to make sure that if you have an item that you do one in the final image that the sisters doesn't accidentally cut it out, you can do that job. I just adjusting these points until you get it with the right selection. Roughly speaking, So it's just working amount here, and then we'll try to finalize it by using some simple brush strip jewels. Okay, so I'm gonna make this selection here. Cut that out. So now I'm gonna go back in here with the eraser. I will lower the size down to, let's say, for pixels or so and then I'll just zoom in really closer and I'll try to take care of it. So for single pick, so at it's like this, I recommend you would have hard edge turned on so that when you actually move some of these light pixels, they're gone completely just by clicking on them. Once you. You okay? And that's not too bad for there. So you can obviously spend a little bit more time if you want. I'm gonna just wrap up this part over here, and then we'll move on to the next part. Now, if he accidentally over select an area like this, you can actually adjust that using, Let's say the rectangular select jewel. If you hold control down while you draw these rectangles, it will remove pixels wherever there rectangle has from the current selection. So, doing this, we can kind of find your what we got with the scissor stroll. Okay, so that's not too bad. You can, you know, come over here, customize it a little bit more, but in general, that's gonna be not cheap. Add. So when you're ready with your selection, just go ahead and hit, delete, and you get rid of it. By doing that, you basically isolated a person from the background, which would allow you to either add in a new background or move the person to a different image. So next up, number two, how to create guides inside of him. So guides are these little lines that go across your document. They don't actually show up when you would printed image out, but they allow you to do things like snap objects or images to certain areas of your documents. So, for instance, if you wanted to center things horizontally and vertically, you would want a vertical and a horizontal guide, both at 50%. You can do that by going up to the image menu. You go down to guides, and you can do new guide, either by pixels or by percent. So if you do percent by default, 50% means he's gonna take the number pixels all the way across, and it's gonna put at a a guide halfway. Now, when it's horizontal, that means it's gonna go left device so it'll appear like this. But if you make it vertical, it'll go top to bottom. So whatever you want, you choose the direction the percentage across so percentage would be left to fight if it's vertical and for for centuries on a would be top to bottom if it's going across. So 50% vertical would be like that, and then you can come in here and do 50% horizontal, and it will look like that now, if you turn on snapping by going to view and then snapped it guides. You can take any object such as this person we caught out, and you can have it perfectly snapped to the center of your document. Just like that. Now doesn't have to be the center of your document. It can also just be centered vertically using the horizontal guide or certain centered, uh, horizontally by using the vertical guy. But you can also do something like foot. Then let's say horizontal and 200 pixels down. If you want something 200 pixels down from the Hatter, so you snap it to their or you could use these guides. If you're doing something like Web designed to make sure that only had herself should be above there and everything else should be the rest of the Web page. Whatever you need, the guides for it, that's how you can find them. That's how you can use them, and that's how you can snap to the guides. Okay, Number three is going to be How can you change the color across an entire image and still have it looked reasonably good. Still, keep the overall look of the image intact. It's just you want to do something like, say, change date tonight or a sunset to morning? Well, you can do that by going up to the colors menu, and there's something called hue saturation. If you go to this menu, um, it's gonna be defaulting to master, which means as we adjust the selected color down here that is gonna be affecting all the different color ranges. Red magenta blues, I in green and yellow simultaneous. So we're basically shifting the color of the entire image. All and one. You can, of course, do it individually as well. But if you do that, you kind of get wacky results. So just taking master color and shifting the Hugh, you can see how immediately we can change the color of the image. And not only that, but we could also reduce the lightness to say, make it a lot more darker weaken, decrease the saturation as well and keep interesting the color until you get something like you want. So just by doing that, we can already kind of turn that dusk into something more of a night. So just by doing that, we can radically change how an image looks overall, but it's still the same imagery. So have all the objects, the lighthouse, that vote etcetera. And when you satisfied, you can hit. Okay, now, obviously, it's not perfect. It's not gonna all in one for the say changing date tonight. So if you wanted to take this a step further, you can, of course, try out some of the other color effects that are available in the colors menu, which are gonna be really useful for up yesterday, changing the color of images inside of em. So number four is going to be creating a path and then making a selection from that path. So the paths tool over here it's similar to the scissors tool and that it allows you to click around on your screen and create points which, by default, are gonna be connected to each other with their linear line. If you left click and hold, that's actually gonna create a busier curve between your points. Um, and as you go around, you can basically create a path which later you can create a selection from. So when you're finished with your path, you simply take the last point in the first point, and you hit control to connect those two. But this does not give you a selection. In order to actually convert your path to this election, go over to the paths window. If you don't see that inside of you can open it by going to windows, doctoral dialogues and then hats up towards the top and we take this path. We right, click it and we go past two selection. So now with this selection, we can cut part of any image or any part of a layer out, and then we'll be able to say, pasted and manipulate it, whatever we want to do. So you just create the path you go paths. You right, click it and you do you pass to selection. The number five is going to be how to remove acne inside of camp. So the best tool for doing this, especially with small problems like this, is called the healing tool. How the healing tool works is we hit control and click on a good skin area, and then we hover over a bad skin area and we start drawing by left, clicking and holding down the draw stroke. But of course, we need the size way higher than that. So make it something like 24 once it's going to do is gonna automatically figure out based on this area. How should the skin look if it was going to be floats? So by taking that close to perfect skin, we go over this slightly less perfect skin and we left click. We hold down and we're just going to draw over it. And what you'll notice is that that acne spot that was there before is basically gone. But it's on in a way that it's less obvious. Toto, how it was before. I mean, if it's still kind of think like that, you can go over to the second time. Just the more you use it, slightly more obvious, it'll become so play around with it a little bit, and you should be able to get pretty decent results there. So let's just go ahead and keep working on the face here and improving it. You just control left click, set a source, and then you left click to draw over a spot where you think it's not as good as it could be . By the way, it does also work with things like wrinkles. So if I go here, I can start removing some of these wrinkles and also work on the one over here. Now, of course, if you have any areas where it looks like it kind of copied from the original source year, you probably want to try to make sure that anything that was there once doesn't get repeated. So you can basically healing brush over that one more time and get it How you want to look . So let's work on the neck a little bit you, By the way, if you can get a similar colored area like this, that's gonna work pretty well. So you do wanna have you sourced somewhere close to the actual spotting question and we'll go here todo over this about two and we zoom out and we've cleaned up the face a lot in just a minute or two. So that's basically how you do acne inside camp. So number six is going to be how do we crop an image inside of camp? So this one is actually really easy, because in game they give you a crop tool right over here, it looks a lot like a knife's edge. So what this is going to allow you to do is select a square area of your image. You can also go over to the tools options, if you want to make it a very specific ratio, are very specific. Size A K. If you want to do you to thumbnails, for instance, eso what we can do here. If you want to manually set the area, it's the left click. Drag a box and let's actually make it one that we might want. So I'm gonna left. Look over here. We'll drag over here to you the bottom right? Just kind of focusing on the face here. And once you have that, if you have it perfect, you can hit. Enter if you want to, just a little more than it will give you these different indicators on the sides and the corner so you can drag and adjust it a little bit more until you have it perfect. But once the area that is let conforms to your expectations for what you want, it cropped image to look like you simply go ahead and hit. Enter. It's gonna crop away the rest of the image, and you now have a decreased language size in order for you to work with. Okay, Number seven is gonna be How can you lighting up or a dark in part off your image? So there's a great tool for this called Dodge Burn. It's the bottom right inside of the tools options to using the Dodge Tool. You can selectively lighten part of your image and by using the dark, and I mean the virtual you can dark in part of your image. So in order to do this, I would recommend that you actually write. Collect your layer and you duplicate it so that any changes you make on the layer can be reverted by going back to the previous later. You can just Haider delete this one if you're unsatisfied. So by clicking on the Dodge Tool, we can go down here, select either dodge or burn burn for dark dodge for light. I would recommend you turned the a pass ity down Ah, lot lower than 100%. I was working with something like 33 here because when you have 100% opacity, it is a very, very obvious effect. Um, and then you could just kind of select the area that you want to lighten up. So let's just say we kind of wanted to smooth out these eyes a bit. You may also want to decrease the brush hardness so that it's less obvious where the edges are on your dodging. Okay, so let's go ahead and lighting up these areas hair and obviously the larger your sizes, the less precise this is gonna be. So I'm gonna actually lower this down through about 50 even though I'm not gonna stress to art. And I'm just gonna take these eye socket areas and lights in them off a bit as long as you don't let go, it's gonna be applying one layer of dodging so it won't reapply itself multiple times the same effect. Unless you actually, like, go off the left mouse button. So they doing that, you can just take that I and make it quite a bit brighter. And we can come over here a swell and do the same thing with the second. I notice it also affects things like the brightness of the eye color. And so now, if we want. We can just do something like and however you want to see how it looks with and without the Dodge effect, we can simply disable this new layer, which, by the way, we should probably rename. So I'm going to double click the name of this layer and rename it Dodge adjustment. Okay, miss, about there's no either. So okay, And now we can disable that and we enable it, and you can see the difference before and after the Dodge adjustments. So whatever you want to light and dark and once again, pretty much the same idea, Uh, you just be darkening part of your image. So if I wanted the forehead to be darker, you can kind of see the effect before and after, right? Okay, So number eight is going to be How do you add symbols to again documents? So if you've ever worked in photo shop, you know that in Photoshopped they give you plenty of presets symbols what? You can basically stretch around like vector graphics in order to make the right size of an aero or heart shaped or a music note of whatever that you want inside a photoshopped eso in gimp, there's a few easy ways to create simple shapes, like hearts circles. Obviously, that would be doing something like using the Ellipse. Select Tool Trading is in the lips on oval and then going to add it. Fill with foreground or background color. You, of course, will change your foreground background color to the color you want before you do this. But you can feel that in really easily same thing with doing a rectangular shapes. So in order to get more complicated shapes, what I would recommend doing is using ask e symbols. So asking symbols are things like a rose and music notes, which exists as taxed stored in your computer. So basically a bunch of symbols, which you can technically type out if you use these coats. So what we can do with any of these symbols that exist inside of asking is copied the symbol itself rather than the text code. Go back into gimp, create a text box and then paste the symbol in. So this will work with pretty much any symbol that exists within. Ask you codes and there are a lot of them. You could also look up Unicode. It will basically could be the same things. So if I want something like an arrow pointing both directions with two lines going through it and across through it well, I could just copy this coat based in as text and there you go. And not only can we just pasted in, we can also adjust it to any size we want. We can change the color of it so you can see how these text based asking symbols can be very, very useful inside of the image editing program. Now, 1/3 option you can try out is literally just to go into Google, search for some clip art. So, like you want a house, put Bart, just type in house clip art on. What you can do is you can just take these images and you can use them inside. If you get documents now, for commercial purposes, you may actually need to find ones that have the right usage rights. So, for instance, you come here for usage rights you can do they vote for re use with modification and then that'll give you some clip art that you can actually use and commercial projects. So, for instance, Let's just go ahead and grab this image. So I'm going Teoh, right click and open this link in a new tab. I'm gonna copy this image, and we can post it into a new layer and side of now because I copied it straight from the Web and it's a PNG. The background color is sometimes gets a little funky. So if you have a P and G with a transparent background, I'd recommend actually downloading it to your computer before you bring it into. But aside from that, you can get really easy clip art symbols. You can get asking symbols, and you can even make some basic shapes inside of so number nine is going to be. How do you add in Drop Shadow, which is an incredibly common thing you're gonna need to do with taxed. So, for instance, I grabbed this image and let's say I wanted to add some text on it, so usually text is gonna be either white or black. In this case, I want to make it white. OK, so you take the front call, we we make it white B type in. That's a territorio, and that doesn't actually look too bad on this image. But if I put it somewhere like where it's really bright, like right about here, you can see that the text becomes hard to read because white and very bright lights don't really go all that well together. They kind of overlap. So what we want to dio is actually add and drop shadow. So if we right click on the text lately, we've just created and do altitude selection. We can go up to the filters menu, go to light and shadow and choose drop shadow from the list. Now. Usually, I like to bump up the capacity for the drop shadow and make it very visible and also increase the blood radius, especially with large text like this. Just make it 25 were OK, and it will automatically calculate some drop shadow for us, so you can see how, just by doing that, the text became way more visible against this kind of bright yellow background, simply because the tax now has some dark black shadow behind it. Now, of course, you can do this with any layer, any image. It doesn't need to be taxed, so I'll go grab that person we created in the first part of this tutorial, and I'll paste them onto a new layer here. So right there, maybe I put him behind the taxslayer by. Well, first, I have to make that a new layer. So stick of floating selection, right? Click it and you make it a new layer, Jack, that put it below the text. And now what we can do is go up to filters. Well, repeat, drop shadow. But usually I will Alfa to selection just to make sure that it actually gets the right area . So repeat drop shadow. And now, if we look at it, this person has a drop shadow to effect Control Z. You can see it without the drop shot on with the drop shadow without the drop shadow with the drop shadow. Okay, so number 10 is going to be How can we take an image like, for instance, the sea scene and put it on a computer screen or cereal box or anything else using the perspective tool. So to get started, we would, of course, go to our image, put inside a separate layer, and then we use the perspective tool we click on our object and then at a very basic level , we have to put the four corners to correspond with the scene behind it. So it's kind of hard to see at the moment. So what I'm gonna dio is actually lower the a pass ity on the sea layer. And what that moment is when we're working here will be able to see kind of a ghost of the previous image and will be able to get those four corners much easier. So get a rough estimate of the four corners to begin with, and then we can zoom in and kind of finalize it. So that was roughly up there. And that was union here. Get it to be about there in the bottom left hand corner, moving that to their over here. Get that to that corner and finally at the top, right. We want that to be, ah, roughly there. So now we can go ahead and hit, transform and at a very basic level, Um, the image is now on the screen, though if we hide it in the neighborhood and hide it in enabled, you'll notice that there's actually some lighting differences. So this image is still exactly where it was originally, like flat lighting all the way across. It's not lighter here like it should be. So if we actually want this image to correspond with the original lighting off the computer screen, what we can do is we can change the mode of the sea image from normal to light and only so now, with that simple change, the lighting on the outside of the monitor can corresponds with the insight, and it looks a lot more realistic. So that's how you would take an image and plaster it on to some other surface, like a computer screen and television SAT orders, cereal box inside. And that brings us to our conclusion. So that was 10 things beginners want to know how to do inside of gimp. I hope you found this video to be fascinating and helpful. My friend Chris, thanks for watching, and I will see you guys in my future video content