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In this movie, I'll show you a couple of tools that allow you to automatically straighten an image. There's the relatively new Straighten tool. And then there's the older, but I believe to be better, Ruler tool. And I'll show you how they both work so you can make your own choice. We have before us the, classic tourist pushes a Pisa photograph that remains fresh as ever. Regardless of how many billions of people have done it. But the photographer seems to have had trouble choosing which to make straight, the horizon or the tower, because neither are.
And what you typically see folks do is try to make Pisa look like it's tipping over more than it is by making the ground go this way. But actually, the tower should be tippier than all this. So we need to make the horizon line straight. Two ways of approaching it. One is to grab yourself the Crop tool. And then notice up here in a Tool bar, we've got the Straighten tool that's available to us. And you can get to it either by clicking on the little icon or by clicking on the word straighten. Either works.
And then, what you want to do is drag along the horizon line. You could also drag along a vertical element if you prefer, but the horizon is usually the safest bet. The problem is you really just get kind of one shot at this because after you drag the line and release, then Photoshop goes ahead and straightens the image and switches you away from the Straighten tool. So, if you find out you haven't done it exactly right, then you need to reselect the Straighten tool and try again. But to its credit, the Crop tool does go ahead and crop away all of the wedges.
Notice that we've rotated the image. And the crop boundary's now as big as it can be, without revealing any areas that would otherwise be transparent. Notice that between movies, I went ahead and reselected Delete Cropped pixels. So if I didn't want to delete this pixels that are outside the boundary, I would have to go ahead and turn that checkbox off. And you can turn it on and off while you're in the middle of performing the operation. So, that's good news. But I'm going to leave it on because I want you to see something here. This is very interesting.
I'll go ahead and press the Enter key or the Return key on the Mac. And sure enough, the Crop tool, per my instructions, has gone ahead and applied a destructive modification because we are still left with the background image here inside the Layers panel. Anyway, I'll go ahead and press Control+Z or Command+Z on a Mac to undo that change. Here's the way I prefer to work. You go to the Eyedropper tool, click and hold, and then you choose the Ruler tool, which has been around inside Photoshop forever. And then, you drag along the horizon line, just as you do with the Straighten tool.
But, the advantage is that nothing happens immediately. So, if you're not sure you've gotten it exactly right, why then you can modify this line as much as you want. So I'm going to go ahead and zoom in here and try to get this ruler line exactly right. And this appears to be more or less it, let's say. And then, once you think that you've got a line that matches the horizon, you go up to the options bar and click on this button Straighten Layer. And that not only goes ahead and straightens the image, it generates an independent layer automatically.
So, there's no chance of this tool being any more destructive than it has to be. Obviously, it has to rewrite the pixels because we're rotating the image. But otherwise, we have not cropped the image at all. And in fact, Photoshop just went ahead and rotated the image inside of its original boundary, so that the canvas size is the same as it ever was. Now what you do is, go ahead and switch back to the Crop tool and you can modify the crop boundary to taste. I'm going to go ahead and take it down a little bit like so, to right about there.
It's sort of snapping on me a little bit. And then, I'll go ahead and drag down to reveal the model's foot, to about there, let's say. Now, if you don't want this snapping to occur, which I don't, then you can go up to the View menu and turn off the Snap command. And then I'll go ahead and drag down and notice now I have a little more control. I'm not snapping to the canvas anymore, so I have a little more room. Around the model's foot. And I can drag upward a little bit as well if I like in order to bring back some more of that sky.
And then I'll press the Enter key, or the Return key on the Mac, in order to apply that change. Now you may look at this and say well, Deke, you have some wedges. Around here, everybody's going to notice that portions of the image are missing. And, that's true of course, the way things are now. But I'm going to show you how to rebuild these missing details, so that the image looks exactly right, in the very next movie.
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