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#1
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Converging verticals
Does anyone know of software which will correct convergimg verticals in
architectiralphotography? Laurie, U.K. |
#2
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Converging verticals
"Laurie" wrote in message oups.com... Does anyone know of software which will correct convergimg verticals in architectiralphotography? Laurie, U.K. Photoshop (since V7 at least). PSP PSE And probably others. Jim |
#3
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Converging verticals
Laurie wrote:
Does anyone know of software which will correct convergimg verticals in architectiralphotography? Laurie, U.K. Gimp (free) for Windows / *nix. |
#4
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Converging verticals
"frederick" wrote in message news:1164821665.663688@ftpsrv1... Laurie wrote: Does anyone know of software which will correct convergimg verticals in architectiralphotography? Laurie, U.K. Gimp (free) for Windows / *nix. I use Corel Paint Shop Pro Photo XI and it does an excellent job. And they made it very easy to use in the latest version. The software superimposes a square on top of the photo. All you do is to drag each corner of the square to each of the four corners of the building. Click execute and the building is straightened out. Very quick, very accurate. The software has a feature called the Learning Center, that literally walks you through numerous editing tasks, including the deformation tool. It also has some "one-click" fixes, for those times that you want to tweak an image automatically, rather than spend a lot of time doing individual tweaks. There is a fully functional 30 day trial version available on the Corel Web Site for download. If you choose to buy, be sure to order the CD version, rather than the download version, as the CD version includes two hours of video tutorials. One major advantage of PSPXI is that Corel has gone to some lengths to ease the learning curve, with tutorials, an excellent help section and the Learning Center. I stopped using PS long ago, because PSP was just so much easier and intuitive. Just my 2-cents' |
#5
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Converging verticals
Laurie wrote:
Does anyone know of software which will correct convergimg verticals in architectiralphotography? Laurie, U.K. I think most true Photo Editors which will normally not be of the freebie variety will do the job. However, how you do it may vary. I use PhotoPlus (an earlier version of this may be free or nearly so, www.serif.com) which has a thing called deform tool that does the trick. I doubt the final result is quite the same as using a large format plate or film camera with all the swings and tilts and a bulb release that uses a true ball. Dave Cohen |
#6
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Converging verticals
Whatever program you use remember that simply straightening the lines is not
enough as the image will likely be foreshortened and require additional correction. If you have used a very wide angle lens it is likely there is pre-existing barrel distortion which should be corrected as well.. Also significant parts of the image will be unusable so cropping is always necessary |
#7
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Converging verticals
"bmoag" wrote in message ... Whatever program you use remember that simply straightening the lines is not enough as the image will likely be foreshortened and require additional correction. If you have used a very wide angle lens it is likely there is pre-existing barrel distortion which should be corrected as well.. Also significant parts of the image will be unusable so cropping is always necessary On the Schneider web site they make the argument that a good perspective control lens beats software correction hands down. Schneider just happens to make an expensive PC lens. Even with the factors that you raise, I still prefer the software solution. You are right about cropping--it is important to leave room at the edges of the frame for the inevitable cropping that must occur when the image is straightened out. |
#8
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Converging verticals
jeremy wrote:
On the Schneider web site they make the argument that a good perspective control lens beats software correction hands down. Schneider just happens to make an expensive PC lens. (chuckle) This may be true. But it's woefully inapplicable to mr Ordinary and a compact P&S camera! Or do Schneider make a PC lens to fit the Canon a510?!?!? BugBear |
#9
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Converging verticals
"bugbear" wrote in message ... jeremy wrote: On the Schneider web site they make the argument that a good perspective control lens beats software correction hands down. Schneider just happens to make an expensive PC lens. (chuckle) This may be true. But it's woefully inapplicable to mr Ordinary and a compact P&S camera! Or do Schneider make a PC lens to fit the Canon a510?!?!? BugBear I did not know that we were discussing converging verticals on P&S cameras. The OP just asked what software was available that corrected the problem. Schneider may have a valid argument about the correction being better done by the optics rather than corrected post-shoot by software. I doubt that most P&S users would even know what converging verticals are, much less be concerned about correcting them. |
#10
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Converging verticals
On Nov 30, 5:34 am, bugbear wrote: jeremy wrote: On the Schneider web site they make the argument that a good perspective control lens beats software correction hands down. Schneider just happens to make an expensive PC lens.(chuckle) This may be true. But it's woefully inapplicable to mr Ordinary and a compact P&S camera! Or do Schneider make a PC lens to fit the Canon a510?!?!? BugBear That said, there is an old tome "use the tool that fits the job". Correcting perspective in software does degrade the image, significantly in some cases. My tool of choice for this is Photoshop CS, I'm not sure if Elements has the same tools. That said, I do prefer 4x5 for architecture, but clients often won't pay for it. Then it is DSLR off the tripod trying to keep everything linear and as little correction as possible, I find a little scewed perspective preferable to soft images. Tom |
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