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Thread: how to straighten a wobbly horizon

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    how to straighten a wobbly horizon

    I just stitched together a 5-6 shot pano in photoshop, and I remember just recently reading about how to straighten a wobbly horizon (not just tilted) - I just can't remember where I read it.

    Can any one point me in the right direction, or offer some advice?

    Thanks,

    Matt

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    Quote Originally Posted by MattC View Post
    I just stitched together a 5-6 shot pano in photoshop, and I remember just recently reading about how to straighten a wobbly horizon (not just tilted) - I just can't remember where I read it.

    Can any one point me in the right direction, or offer some advice?
    Probably lots of ways of doing it, but all I do is duplicate the image so that you have two layers. Then I take the selection tool and draw a nice straight line across the top layer at the horizon level, turning it into a long thin selection which I delete, cutting off the wobbly horizon. Then I move the lower layer so that the sky fills in the gap I have just cut, and merge the two layers together. Seems to do the job - hope it's clear enough to follow.

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    Have you tried using a panorama program like Microsoft ICE and see how it comes up? A program made to join them might be able to do it easily with less work than trying to straighten it all yourself?

    http://research.microsoft.com/en-us/...roups/ivm/ice/
    Cat (aka Cathy) - Another Canon user - 400D, 18-55,75-300mm Kit Lens,50mm f1.8, Tamron 90mm f2.8 Macro, Sigma 28-70 f2.8-4 DG, Tripod and a willingness to learn
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    Hey, if it only needs minute changes, open the image in PS press CTRL + A and go up to Edit, Transform and choose warp. A grid will appear over the image and you just drag and drop for whatever corrections you need. Give it a go and see how you go.

    Cheers Phil
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    Thanks for the replies

    Cat - did the merge using ICE - a great (free) program for sure!

    Phil - I think you hit the nail on the head - I am fairly sure that is what I was thinking of. Thanks!

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    another trick for straightening the horizon on images is

    stretch the ruler tool along the horizon and rotate the canvas abituary

    will give u a straight horizon every time

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