| Author | Thread |
|
|
01/14/2005 03:28:39 AM · #1 |
In another thread a member was asking for a program to adjust perspective. This can be done in photoshop. here's how:
***********
Original (by Messerschmitt)
Corrected
***********
Open image in photoshop. Be sure rulers are visible top and bottom. Drag vertical guidelines into your image for reverence.
"Select All"
Edit/transform image/skew
grab handles in corners one by one and drag right and left until verticals are squared up. If you need to square horizontally as well, drag horizontal guidelines for reference and continue with above dragging corners up and down.
When satisfied, double-click in center of selection to accept changes.
Crop image back to rectangle.
************
If you are shooting with the intention of later correcting perspective, shoot wider than you expect the finished image to be so you have room to crop to desired framing; this correction crops quite a bit out of the image if it is extremely skewed.
"transform Image" tool also has a "perspective" option, but this is less versatile. It works best if the original is receding symmetrically. The skew tool can deal with asymmetrical vanishing points.
Robt.
Message edited by author 2005-01-14 03:44:53.
|
|
|
|
01/14/2005 04:26:52 AM · #2 |
While excessive perspective distortion by a lens can make a picture look odd (particularly when there is just one off-centre tall object), I have to say that I like the first picture better. I think the slight convergence at the top of the buildings gives it a sense of 3D which, given the scale of the subject matter, only adds to the picture. But thanks for the technique tip: will try it out!
Ben |
|
|
|
01/14/2005 04:47:55 AM · #3 |
thank u kindly Bear for ur tip
im sure its gonna be helpfull in the (near) future |
|
|
|
01/14/2005 06:03:43 AM · #4 |
Originally posted by bear_music:
In another thread a member was asking for a program to adjust perspective. This can be done in photoshop.
Robt. |
Is it legal under advanced rules?
|
|
|
|
01/14/2005 06:57:15 AM · #5 |
Pickard,
In the other thread Messershmitt ASKED for help in perspective correction. Like any other tool, it's sometimes good and sometimes not good. I was just showing hOW to do it ok?
Tiberius,
This is advanced editing rules, so it ought to be legal. If it ain't, gawd help us; we're giving the farm to the DSLR people who have perspective control LENSES. If any of them do...
Anyone got a PC lens for a dslr? Show of hands? I had 'em, for my film nikon, and for my canon.
Robt.
Message edited by author 2005-01-14 07:09:42.
|
|
|
|
01/14/2005 07:04:04 AM · #6 |
| Just so psp users know. On the tools tool bar there is a perspective tool. It's in the second icon down from the top in psp8. Works pretty much like ps. |
|
|
|
01/14/2005 07:39:13 AM · #7 |
Originally posted by bear_music:
Pickard,
In the other thread Messershmitt ASKED for help in perspective correction. Like any other tool, it's sometimes good and sometimes not good. I was just showing hOW to do it ok?
|
No problem, Robert. I wasn't implying you were doing this without permission and I was just making a specific observation based on personal taste. It took me ages (and several comments on my challenge entries) to find out how PS could do this, so I'm sure a lot of people will benefit greatly from your tips. Ben |
|
|
|
01/14/2005 07:48:55 AM · #8 |
Read this for info on a Photoshop Plug-in to correct distortion
I've used this thing, and it works, but it is slow and takes some trial and error. But, when it works, it works verrrrry well. I have a wide-angle converter that does a lot more to an image than keystoning, it makes all of the straight lines on the edge of the shot quite curvacious. This program rectified it and quite successfully, at that. Also, if you play with the numbers you enter, and disregard the guidelines, you can get some interesting effects.
EDIT: For reeeeeally badly distorted images, a combination of editing stuff may be necessary. The perspective crop works really well, but when it's a badly keystoned photo, it can make stuff look funny. So just experiment and have fun.
Message edited by author 2005-01-14 07:52:08.
|
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 09/06/2025 12:57:19 PM EDT.
