???? do it exist a software to correct wide angle distorsion

[pingupingu]

do anyone know a (free) feature, in a digital darkroom software, that could correct distorsions on right lines, producted by wide angle ?.

is it theorically possible or impossible ?

( as panoramic software calculate a new pic acoording the projection way perhaps it is not a mad question ? )

thank you of your answer.

[john_houghton]

The free Panorama Tools Photoshop plugin will do this. Obviously you would need a version of Photoshop or a program that will accept Photoshop plugins. If you haven't got a suitable program, then you can use PTAssembler or PTGui as a front end interface program to run Panorama Tools. You can then effectively do what you outlined, i.e. use a panorama stitcher to do the transformation, albeit with only one image.

Panorama Tools from http://www.all-in-one.ee/~dersch/
Info at http://www.all-in-one.ee/~dersch/barrel/barrel.html

Recent updates to PTGui mean that there is now a more convenient way of working out the lens parameters. See:
http://www.erik-krause.de/verzeichnung/distort_en.htm
and www.ptgui.com

John

[ismelldogcrap]

Check out:
http://www.dpreview.com/learn/Image_Techniques/Barrel_Distortion_Correction_01.htm

They reference a free Adobe Photoshop 5.0-7.0 plug-in (assuming you already have Adobe Photoshop...) that can do some distortion correction (digitally).

Click hypertext for Panorama Tools (PanoTools.zip file) to download.

I haven't tried it though. I just remembered reading about it...

[pingupingu]

thank you very much.