If you open your picture in photoshop click on the ruler at the top and keeping your mouse button down drag a ruler over the horizon so that the middle of the line is on the middle of your horizon.(this is so you have a straight horizontal to work to, you can just drag it back up to the ruler bar to get rid of it)



then go to analysis on the menu bar and choose ruler tool. Click the left hand side of your horizon and then drag down to the right hand side (dont let go of mouse button until you are over the right hand side).
Now in the top of your window it should give you some information regarding the angle your out by. This case 2.1degrees.

Now goto image>rotate canvas>arbitrary and click that. Photoshop will have already filled in the angle for you but if it hasnt enter it yourself (2.1 degrees counter clockwise for this one).

gives you this

then just crop to remove the white or clone the gaps in if your feeling adventerous! (you'll lose a bit of your image which is why its worth getting it right in camera first).

HTH Steve

 

Thankyou so much Stephen

If i get stuck finding them on photoshop, i will shout

Sarah

 

and in my case, my photoshop looks jack all like that one

 

lol was just thinking that myself only got photoshop cs2

 

Handy stuff My Photoshop looks just like that too

 

it shouldnt look too different, you might have to go to view>rulers and click that to get the rulers on the top and side. That part isnt too important really,its just a visual guide so know where the true horizontal is. Your tool bar to the left may be doubled up rather than one long bar but again thats just personal preference. Oh, mines cs3 but im sure cs4 is the same if thats what you've got??

 

I had cs2 last year, it looked similar to the above.............

 

 

Ive got photoshop elements 6

Sarah

 

i am not sure if elements has the rotating crop, try opening your pic,select crop tool then just put a small long crop along the horizon,
when you move your cursor near the corner (not on the corner,just outside the crop) it should change, if you left click and hold you can now rotate the crop up or down.
at any time you can let go of the corner ,go to middle of top line and drag the crop up or down over the horizon to check that its level, if its not then rotate the crop a little more from the corner.
once you have the horizon level you can expand each bit of the crop by dragging to suit.
finally double click the inside of the crop to finish .
i am not very good at explaining so i hope this makes sense. cheers nomad

 

thanks for trying to explain, im gonna give it a go when ive got some time tomorrow