mskp
Posts: 161
Location:
Registered: 19 Oct 2006
|
Curved roof
Posted: 1 Apr 2008 at 17:06 GMT
|
|
Hi! First of all sorry, because I´m sure that this was asked more then once. I checked other threads but could not find the answer to my question:
Is there a way to level the roofline of this building for example? I tried "crop and perspective" as I know that that works for the vertical lines.
Thanks, Martin
|
|
alert moderator
|
|
gus
Posts: 382
Location: United Kingdom
Registered: 19 Jun 2007
|
Re: Curved roof
Posted: 1 Apr 2008 at 17:36 GMT
|
|
Hi Martin, did you stitch with PTgui?
I havent done it yet, but im sure you can assign horizontal control points to straighten the roof.
gus
|
|
alert moderator
|
|
mskp
Posts: 161
Location:
Registered: 19 Oct 2006
|
Re: Curved roof
Posted: 1 Apr 2008 at 17:57 GMT
|
|
I forgot to mention, that I´m not trying to achieve a 360º panorama. I want a rectilinear stillimage of about 98ºx55º.
Martin
|
|
alert moderator
|
|
Hans Nyberg
Posts: 819
Location: Denmark
Registered: 28 Aug 2005
|
Re: Curved roof
Posted: 1 Apr 2008 at 18:06 GMT
|
|
You just need to change your output to rectilinear.
In PTGui it is in Panorama Settings.
Hans
|
|
alert moderator
|
|
mskp
Posts: 161
Location:
Registered: 19 Oct 2006
|
Re: Curved roof
Posted: 1 Apr 2008 at 18:36 GMT
|
|
Thanks Hans, but actually it is set at "Rectilinear (Flat)". I understand, that the curve is natural because of the lower angle of view, but I thought that it can be levelled or flatten with a PS tool or with Ptgui.
Regards, Martin
|
|
alert moderator
|
|
michael medina
Posts: 266
Location: portland, oregon, United States
Registered: 27 Jan 2008
|
Re: Curved roof
Posted: 1 Apr 2008 at 19:27 GMT
|
|
have you tried the simple method in photoshop
filter > distort > lens correction > remove distortion ?
mmm
pdxvr.com
|
|
alert moderator
|
|
Bob Stone
Posts: 37
Location: Rochester, NY, United States
Registered: 20 Oct 2007
|
Re: Curved roof
Posted: 1 Apr 2008 at 20:59 GMT
|
|
Awesome tip Michael! A new one for me and I'll be using it often for sure.. Here's what I managed to get in only about 3 seconds!
|
|
alert moderator
|
|
mskp
Posts: 161
Location:
Registered: 19 Oct 2006
|
Re: Curved roof
Posted: 2 Apr 2008 at 0:40 GMT
|
|
Hi, Michael! It is true, it is really a simple method, but you have to know about. Now I know and I thank you for that!!
Regards, Martin
|
|
alert moderator
|
|
John Houghton
Posts: 2265
Location: Hitchin, United Kingdom
Registered: 17 Jan 2005
|
Re: Curved roof
Posted: 2 Apr 2008 at 7:15 GMT
|
|
The Photshop adjustment may well solve the problem and is expedient, but the roof line ought to be flat in your PTGui stitch since it is a rectilinear projection. All straight lines are preserved. Maybe your lens parameters are suspect, or there are some poorly assignd control points. The correct action to take would be to assign a row of t3 (line) control points along the roof and use the Panorama Tools optimizer to straighten it.
John
|
|
alert moderator
|
|
Nikos Giannakopoulos
Posts: 83
Location: Athens, Greece
Registered: 10 Jan 2008
|
|
stalwart
Posts: 78
Location: Barton under Needwood, Staffordshire, United Kingdom
Registered: 20 Dec 2007
|
Re: Curved roof
Posted: 2 Apr 2008 at 12:31 GMT
|
|
hi all
is it me - or is the roof still not horizontal? Looks like it arches up slightly in the middle.....? or is it my wonky eyes!?
Stu
|
|
alert moderator
|
|
gus
Posts: 382
Location: United Kingdom
Registered: 19 Jun 2007
|
Re: Curved roof
Posted: 2 Apr 2008 at 13:25 GMT
|
|
yes it does slightly, take a pice of paper, and align it with the top of the roof to see.
gus
|
|
alert moderator
|
|
Nikos Giannakopoulos
Posts: 83
Location: Athens, Greece
Registered: 10 Jan 2008
|
Re: Curved roof
Posted: 2 Apr 2008 at 16:55 GMT
|
|
gus said: ...take a pice of paper, and align it with the top of the roof to see.
gus
Or alternatively install this cool ruler
www.fabsoft.com/products/ruler/ruler.html
in order to see if your verticals are vertical and the horizontals are horizontal.
It's also helpful to use this with PTGUI prior to creating the panorama...
|
|
alert moderator
|
|
michael medina
Posts: 266
Location: portland, oregon, United States
Registered: 27 Jan 2008
|
Re: Curved roof
Posted: 2 Apr 2008 at 17:27 GMT
|
|
|
or just slide your browser window to the bottom or edges of the screen
|
|
alert moderator
|
|
Henri
Posts: 42
Location: Tilburg, Netherlands
Registered: 30 Oct 2007
|
Re: Curved roof
Posted: 2 Apr 2008 at 17:29 GMT
|
|
The picture looks like it's bulged a bit just right from the center.
So I couldn't resist and tried photoshop's warp on in (the bulge preset), it gives this result.
I think if you de-bulge the pics seperatly you can get a good and quick result.
Maybe you should also look at ptlens ( www.epaperpress.com )it's a tool like the one mentioned earlier but a lot cheaper.
|
|
alert moderator
|
|
Prev
