Perspective Cropping in Photoshop
The next thing that we have is actually a really interesting thing in the crop tool that's more of, I'd say an effect, but a very helpful effect. It's called perspective cropping. And perspective cropping, this can save, we'll just say the word "wonky" a wonky image. I like the word "wonky." If we go into cropping and we open up the perspective crop, I've got two images here for you that we can use this on. This happens to me a lot. I like to visit museums, and I like to photograph the images, the paintings that I see specifically, the quality of light, just to see what painters did. They didn't have necessarily the light source right in front of them. A lot of times they were just painting from memory. But to see how they control light from their memory, it's absolutely brilliant. So I do a lot of this stuff. I was at the Louvre; I shot this photograph. And I don't like the fact that I had to position my body in a weird angle to shoot this painting to not get a glare on it, right. So ...
when we look at this, it's offset. It doesn't look right. And the perspective is totally warped on this photograph. Well, there's a really cool tool in here called the perspective crop tool. And the perspective crop tool can be used in one of two ways. You can either click and drag and make a selection and then edit it later, which I'll show you on the next image. Or you can find very distinct points on an image that you want to be magically fixed with a perspective crop. So if we click right here in this upper left-hand corner and then we click over here on this upper right-hand corner and then we click down here on the lower right-hand corner and then over here on this lower left-hand corner you can see that we don't have the exact same stuff that we had going on with the regular crop tool. And more specifically, we don't have the option to delete or undelete the cropped pixels. So just know that going into this. You can turn on and off the grid if you want that grid on and off. I prefer to keep the grid on because it helps me keep my straight lines straight as I'm doing this. And then we also have resolution here. This data that's coming in here with these dimensions here, I would just ahead and make sure that they stay the same when you're doing this. Because if you did change this from 300 to 50, it will alter the image size. So it's not just a temporary crop like you'd see with something like the regular crop tool. If you change the resolution at this point it will alter the resolution in your image because it's incorporating image size in with this perspective crop. But the cool part is after I've laid those constraints down and I press enter, if we zoom out here, look at that. It automatically assessed how the perspective was warped in the image and it made it perfectly straight. How does this help you? It's a picture of a painting. Well, there are times where I take pictures of my pictures or I take pictures of maybe my pictures in a gallery and I wanna make sure that that is set up correctly. What we need to make sure, though, is that the perspective crop, if we are talking about that in terms of, let's say a gallery, here's another one of my favorite museums, Nelson-Adkins Museum in Missouri. If we look at this, the perspective is warped. I shot it with, I believe it was a 10 millimeter lens on a full frame camera. So you can see that that floor is really warped. Things are starting to warp in from the top, and it doesn't necessarily look right. It doesn't look correct as you would see it with your normal eyes. So if I take this perspective crop and I try to do the same thing that I did before and just pick a point like this and do this, I'm just gonna show you what happens if I press enter on this. Look what happens. If I press enter on that-- let me go ahead and delete that. It's gonna crop it to exactly what I told it I wanted it to be cropped to. So we have to keep that in mind. In the other example, that worked out perfectly fine. That worked out great, okay. So I'm just gonna make sure that resolution is set to zero there. I don't wanna change the resolution on this. So what I need to do now is I need to constrain what I want the actual crop of this image to be. So I said before you can either click on points and if you know the exact points that you need those to be, you can click on those points and go from point to point to get your perspective crop out. But if you don't necessarily know those points, one of the best ways to do this is to make the constraints of how big you want the image to be first, then set that perspective crop. So if you tried to do this the exact same way you did the other one because you saw that, oh, I want that back area to be perfect, well, it's not gonna work that way. So what we need to do is just click and drag, and this will pull out an entire rectangle for us, perfect rectangle. But from here, we get the option to manipulate the handles on this and push and pull the angle at which this is gonna come in. So I like this line right here. I'm gonna go ahead and move this over to that line right there, perfect. And pull it right up to that edge right there. I like this line that's happening down here, so I'll make sure that this line right down here and this line right here are perfect. I've got this side down. Now I'm gonna hop over to this side. I'll click on this, move this right to the bottom line that I have on the same side on the other side. Right to here, there. And then again up here, right to there. And now, if I commit to this and press enter, it automatically crops it and fixes that warped perspective for me. It's a really awesome tool to use when you're working with warped perspectives form wide-angle lenses. I work a lot with 10 millimeter lenses. It's my favorite lens of choice now. Once I got that and put on the Sony full frame, it just makes everything just look wild and epic. But at the same time, it has this drawback. What are the drawbacks? Things that are far away are really far away. And also, areas that should be straight up and down are warped into oblivion. So I know we covered quite a bit here. We talked about the composition basics, understanding why we do what we do when we are cropping. I can't just sit here and tell you about cropping without teaching you a little bit about composition and composition comprehension first. Because I wouldn't be doing you justice in order to understand why it's important to crop and not to be afraid to crop. A lot of times we have this image and it's my precious. We don't wanna crop it, but it needs that crop. So we talked about composition comprehension there. We talked about cropping in Adobe Camera Raw and identified some of the limitations. And those limitations being things like the inability to fill in areas outside of the area that we cropped. We then moved into Photoshop. We talked about regular cropping. Cropping for composition in mind. Cropping to fill in some of the areas where content is not. And then we moved into cropping specifically for a subject where we shot an image that needs a crop because we have to crop something else out. And then we talked about cropping for print and how aspect ratio and image size are in relationship to one another, but not necessarily a direct resemblance of one another. We also talked about perspective cropping, so it also fixes some of the warping while it does the cropping.
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Software Used: Adobe® Photoshop® CC® 2018