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Leveling a horizon or building easily Mesuring Tool (never heard of it?) Rate Topic: -----

#1 BlueCube  Icon User is offline

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Posted 29 September 2005 - 10:40 AM

So, here is the long annoying way to do this, which is not always entirely accurate. You put on your grid, and then rotate accordingly. This makes it look good to an average eye, but if you are in industry and need something so incredibly perfect, or you don't feel like changing your grid from the thirds (good for you, following those design rules) Below, I will teach you a much easier way that is 100% accurate with a tool you may have never seen.


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So, you are the idiot who shot the photo on an angle. Such a beatiful shot too. We're going to straighten up the photo. Be for-warned that because you already screwed that up, you'll loose a little bit of area on the outsides in the end (or you can redraw it with the clone stamp tool like I enjoy doing)

Appearing in the picture below is the "measure tool" It is right behind the eyedropper tool. If you click and hold on the eyedropper, you will see a few other tools. The bottom one being, of course, the measure tool. This works just like the polygonal lasso tool in theory, though you click and hold instead of click twice)

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What you want to do is use this tool by clicking on one side of the horizon, and let the line run to the other side of the horizon. Below is what your image should look like at this point.

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Now go under the "Image" drop down menu, go to "Rotate Canvas", and then "Arbitrary" Normally, you can enter how much you want to rotate in this tool. However, you used the measuring tool to preset the degree's of change it needs, so the numbers will be preset. Click ok.

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Good, now your image is LEVEL!!!! However, you got that icky background everyone.

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At this point, you can go one of two routes depending on how good you are with the clonse stamp tool. Later on, I'll cover tips with that, but for now, let's just crop in on it.
Before:

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After:
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All done! Nice picture by the way!

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Replies To: Leveling a horizon or building easily

#2 skyhawk133  Icon User is offline

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Posted 30 October 2005 - 02:45 PM

Just used this on a bunch of photos I took. Amazing. Awesome tutorial :)
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#3 REDNINJA  Icon User is offline

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Posted 20 December 2008 - 03:20 AM

That's what's up. For someone like me just beginning to learn how to use photoshop, it seems very helpful. I will have to try this on a few photos today, just to get the hang of it. Pra¢ti¢e makes perfe¢t. Thanks for the insight.
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#4 calebjonasson  Icon User is offline

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Posted 01 March 2009 - 05:02 PM

very nice technique!
there is another way that involves pressing CTRL + ' or Command + ' on your keyboard to show a grid in the background then zoom out so there is blank space around your image. Now press CTRL + T or Command + T, this will show bounding boxes, hover your mouse oustide until it shows an icon to turn the picture then click and move until the horizon line is lined up with a horizontal line on the grid.
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