Everybody of you photography fans may know it: you take a really great photo and than at home you put it on your computer and something really silly happens: the horizon is oblique. Most of the time I ask myself how this could happen, but often it just doesn't attract attention. Previous I always used the program ShiftN to straight my horizons but on my MacBook I didn't wanted to install it. So I taught myself how to do it with Photoshop, which by the way isn't that hard. Today I want to tell you this little Life Hack: How do you straight oblique horizons. As always I use Photoshop CS2, but I think the newer versions are still doing it alike.
First of all you have to show the program where your horizon is, for that you have to use the Measure, in my Photoshop Version you have to right click on the Eyedropper for that. With the Measure you now mark the horizon of the picture, in this step you see how oblique your horizon actually is.
Now you need to twist the picture so that the horizon is straight. For that you have to choose the Menü "Image", "Rotate Canvas" and than "Arbitrary". Photoshop is that intelligent to now show you the right value and so most of the time you just have to click "okay" and the horizon is straight.
Da dieser Trick so schnell geht, mache ich das inzwischen bei jedem Bild auf dem ein Horizont zu sehen ist einfach testweise. Schließlich verschätzt man sich da manchmal ganz schön, oder man selbst nimmt es als gerade wahr und andere als schief. Photoshop berechnet das sehr präzise - zumindest ist mir noch nichts anderes untergekommen - und somit kann man sich in wenigen Sekunden absichern, dass das Bild kein totaler Reinfall ist.
The next problem is that your picture now has white surroundings. For that you just have to crop it. I always try to cut as near on the white surroundings as I can, because otherwise you loose a lot of your picture. Well, that's it. Pretty easy isn't it?
That Life Hack is so fast, that I now do it on nearly every photo I have - certainly only when you see a horizon. Because sometimes you just don't see that the horizon isn't straight. And Photoshop is pretty good in calculating it.
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Do you want to have more Photoshop Live Hack Posts? What do you think of today's post? I would like to have some feedback.
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