Mike Chaney's Tech Corner
March 28, 2024, 08:48:55 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Qimage registration expired? New lifetime licenses are only $59.99!
 
   Home   Help Search Login Register  

Professional Photo Printing Software for Windows
Print with
Qimage and see what you've been missing!
Pages: [1]
  Print  
Author Topic: Converging verticals  (Read 8404 times)
fencer
Newbie
*
Posts: 16


View Profile
« on: April 01, 2016, 11:01:04 AM »

Is there a function in Qimage for correcting converging verticals?   I know I can do it in Photoshop but prefer to do all my printing in Qimage.

Regards.
Logged
Fred A
Forum Superhero
*****
Posts: 5644



View Profile WWW Email
« Reply #1 on: April 01, 2016, 11:21:30 AM »

Quote
Is there a function in Qimage for correcting converging verticals?   I know I can do it in Photoshop but prefer to do all my printing in Qimage.

Regards.

If Converging verticals is another way of saying lens distortion, then yes, there's a system in Qimage for that.
Mike has built into Qimage, distortion correction for a number of cameras and lenses.
The best way is for you to contact Mike    mchaney@ddisoftware.com and tell him you would like lens correction.
He will reply telling you the shots he needs.
Then your correction will be inside Qimage, and automatically correct your lens distortion.
Fred
« Last Edit: April 01, 2016, 11:38:29 AM by Fred A » Logged
Terry-M
The Honourable Metric Mann
Forum Superhero
*****
Posts: 3247



View Profile WWW
« Reply #2 on: April 01, 2016, 12:25:05 PM »

Quote
If Converging verticals is another way of saying lens distortion
Fred, no, it does nor mean that. Fencer means what I would call perspective correction used for architectural subjects in particular.
An example would be where the top of a building looks narrower that the bottom and you want the verticals to look verical and parallel.
So, no QU does not do that.
Terry
Logged
fencer
Newbie
*
Posts: 16


View Profile
« Reply #3 on: April 01, 2016, 03:57:12 PM »

Thanks both;but Terry's right. It's just as I feared and it leaves me with two choices. Either Use Photoshop or lash out on one of Canon's rise and tilters. That's a lot of money for a limited use lens so I'll probably stick to P/S for the moment. It's a bit of a guddle to use as when you've finally managed to stretch the top of the verticals out to parallel you discover the whole building has shrunk in height and now it has to be pulled up again.

I've noticed a big increase in their use by estate agents, (realtors), in recent years, sometimes with very strange effects as the top of the buildings can look wider than the base.

Anyway, thanks guys.

D.
Logged
Terry-M
The Honourable Metric Mann
Forum Superhero
*****
Posts: 3247



View Profile WWW
« Reply #4 on: April 01, 2016, 04:02:05 PM »

Just to add to my previous post and re.
Quote
Either Use Photoshop or lash out on one of Canon's rise and tilters.
If you do not have some other editor that will easily correct perspective (converging verticals etc.), The PT Lens by epaperpress.com is a cheap software solution.
http://epaperpress.com/ptlens/index.html
It will also correct barrel distortion on many lenses.
Price: $25
See attached sample of an image where I recently used PT Lens to correct perspective. I particularly like that it automatically saves the corrected image to a new file.
Terry
« Last Edit: April 01, 2016, 04:05:22 PM by Terry-M » Logged
admin
Administrator
Forum Superhero
*****
Posts: 4109



View Profile Email
« Reply #5 on: April 01, 2016, 04:31:37 PM »

You could try GIMP.  That's free.  Smiley

Mike
Logged
Jeff
Hero Member
*****
Posts: 763



View Profile WWW Email
« Reply #6 on: April 02, 2016, 07:59:24 AM »

Just to add to my previous post and re.
Quote
Either Use Photoshop or lash out on one of Canon's rise and tilters.
If you do not have some other editor that will easily correct perspective (converging verticals etc.), The PT Lens by epaperpress.com is a cheap software solution.
http://epaperpress.com/ptlens/index.html
It will also correct barrel distortion on many lenses.
Price: $25
See attached sample of an image where I recently used PT Lens to correct perspective. I particularly like that it automatically saves the corrected image to a new file.
Terry


Thanks Terry.
That is a very handy little prog,

Jeff
Logged

Grumpy
fencer
Newbie
*
Posts: 16


View Profile
« Reply #7 on: April 04, 2016, 04:59:27 PM »

Good suggestions. Thanks.
Logged
Terry-M
The Honourable Metric Mann
Forum Superhero
*****
Posts: 3247



View Profile WWW
« Reply #8 on: April 04, 2016, 05:47:36 PM »

I check out the Gimp program. It seems it will only operate in sRGB colour space (I could be wrong about that) and the perspective correction tool was a little strange.
The the tool puts grid lines over the image but when any correction is applied, the grid distorts too. Apparently you have to draw some extra guide lines that do remain as a rectangle.
Terry
Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!
Security updates 2022 by ddisoftware, Inc.