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03/20/2007 02:50:25 PM · #1 |
Hi all -
I'm having some trouble with the Photoshop Free Transform tool. I have a horizon which is bowed - the centre bit bulges upward, the edges bulge downwards. I'm selecting part of the horizon, and using the Free Transform tool to adjust the curve in that part of the image.
The problem is that I can't lock the edges of the selection, so when I stretch the selection to correct the bulges, this moves the edges or corners too. When I've finally got the horizon straight, there's usually a line or two of whitespace pixels between the selected area and the rest of the image.
This is really frustrating - is there a way to tell the Free Transform tool to keep the edges where they are and only stretch stuff inside the selection?
Any advice appreciated!
Cheers
Buzzy
Message edited by author 2007-03-20 14:52:00. |
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03/20/2007 03:26:02 PM · #2 |
| Not sure about the Free Transform tool, but you might try the Lens Correction tool. It's under Filter/Distort. Seems like there's a lot you can do with it (in CS2 anyway). |
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03/20/2007 03:29:53 PM · #3 |
You can't do what you're asking with "free transform", no. Start with "lens correction" in "filter/distort" and then go from there, as kearock suggested.
R.
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03/20/2007 03:31:30 PM · #4 |
Wow. That's going to be a hard one. I never have to correct bowing. Let me try. When you click on the "free transform" there's a button in the option panel called "Switch between free transform and warp modes." Click on that and then choose the "Warp: Custom" dropdown box. There are a bunch of options there.
I'm using CS2, but I'm sure ealier versions have it too.
I'm not certain what lens you use, but your 50mm wouldn't have done this. I'm not certain how good that other glass is you have (17-85 or 18-55), but maybe an invest in some better glass would do the trick.
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03/20/2007 04:03:40 PM · #5 |
| Thanks for the responses everyone. I'll have a go with the lens correction and see how it goes. Nullix - it was the 17-85, at 17mm. The horizon isn't very sharp - it was cloudy, and the clouds almost blend into the sea - so it may be an artifact of the clouds on the horizon as much as imperfections in the lens. Better glass would be nice, but I think I've got some way to go before I'd justify that to myself :) |
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03/20/2007 04:05:31 PM · #6 |
Originally posted by buzzy:
Thanks for the responses everyone. I'll have a go with the lens correction and see how it goes. Nullix - it was the 17-85, at 17mm. The horizon isn't very sharp - it was cloudy, and the clouds almost blend into the sea - so it may be an artifact of the clouds on the horizon as much as imperfections in the lens. Better glass would be nice, but I think I've got some way to go before I'd justify that to myself :) |
Post the pic here and throw the challenge out.. someone will fix in in all of 20 seconds I am sure.. lots of talent to draw upon here.. |
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03/20/2007 04:45:54 PM · #7 |
There are several transform options, and they lock in various methods of changing the image.
Warp is the least locked-in, and divides the image into 9 sectors. Just click anywhere (don't have to click on the sector or image boundaries) and move it around.
I suggest playing with all of the options: warp, perspective, distort, etc. It's very hard to describe in text what they do, but quite obvious when you start using them.
Just zoom out so you have plenty of gray "desktop" within the window, so you can see the effects on the image boundaries.
For what you're seeing, warp seems like the best bet; I've used it to very good effect many times.
But I'll have to look into the lens correction options, too!
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03/20/2007 10:30:12 PM · #8 |
You could also go the cheap route with good lens and buy a wide prime. I know 24mm isn't as wide as 17mm, but it'll do on the cheap. Then when you get enough money, go with the 17-40 f4L. It's sweet and is my standard lense.
Happy shooting. |
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