Help needed: How to correct wrong horizons .

[ConstantinosConstantinou]

I am new to Photoshop CS4 and I have some images that the Horizon needs to be corrected. (One -left- side is lower than the other) Please someone tell me step by step how to correct this problem? I shall very much appreciate any help. Thank you.

[silversnapper1]

Hi and welcome to the forum.

For this I use the following method:-

Ctl + A will select the whole image and you will see the marching ants around the edge.
Ctl + T will bring you some boxes in the corners and in places around the edge.
If you left click and hold just outside one of the corner boxes you will see a curved two way arrow and if you drag your image slightly up or down you can level your horizon.
You will then need to crop the image to get rid of the waste spaces.

Hope that this helps.

Steve.

[hssutton]

Although the above works, this is the better method.

Use the tool just below the "Crop Tool", Often hiding behind the "Eye Dropper" tool is the "Ruler Tool" select this and draw a line across the horizon, then go to "Image">>"Image Rotation" and then "Arbitary". A box will open showing your the angle in degrees to which the image will be rotated. Click OK and the image will rotate.

Normally you would do this in layers, but you can do it without bothering if you like. Now just crop your image to suit.

Harry

[AndyStevens]

Or, if you shoot in RAW, use the Straighten Tool in ACR

[silversnapper1]

Originally Posted by AndyStevens

Or, if you shoot in RAW, use the Straighten Tool in ACR

I've never had much luck with that.

Steve.

[Markulous]

..... or if you're going to crop the image then rotate the crop (set the top line of the crop along the horizon, rotate and then enlarge crop to it's full size)

[AndyStevens]

Originally Posted by silversnapper1

I've never had much luck with that.

I used to use it and got on quite well with it - now use hotshoe spirit level so rarely need to straighten...

Cheers
Andy

[silversnapper1]

Originally Posted by AndyStevens

I used to use it and got on quite well with it - now use hotshoe spirit level so rarely need to straighten...

Cheers
Andy

Quite agree Andy and it's something that I try to use when the camera is tripod mounted. Otherwise, I use the grid in the viewfinder to try to get the horizon as level as possible.

Steve.

[AndyStevens]

Originally Posted by silversnapper1

Quite agree Andy and it's something that I try to use when the camera is tripod mounted. Otherwise, I use the grid in the viewfinder to try to get the horizon as level as possible.

I feel left out now - no grid in the viewfinder I have to use the AF points - which dont really help as the only 'line' is dead centre

Or maybe the red and white Canon box Santa is bringing will help here

[silversnapper1]

Let's hope so Andy.

Steve.