Hi Zarl! Thank you for the very informative response. The task that I am trying to accomplish is to stitch a 360 degree panorama. The camera I was using is the Nikon D3200 with an AF-S Nikkor 18-105 mm on a tripod. I was thinking that perhaps 32 images is too few, as I am not using a fish eye lens, but also before I start any larger projects I want to ensure I have everything working fine, as the Nikon D3200 produces images that aren't too large and 32 images are relatively easy to process in a program like this. Let me know what you think! Regards, David
On Wednesday, June 8, 2016 at 11:24:05 AM UTC+3, zarl wrote: > > Hi David! > > [email protected] <javascript:> wrote on 07.06.16 21:25: > > > P.S. Within the Hugin program a cylindrical lens provides me with a > > rectangular preview resembling the original save file while the > > rectilinear lens gives a preview with rounded edges? Is this normal, > > what is the reason the edges are rounded in the rectilinear option? > > What you see in the preview window is just a reprojected version of your > image. The standard output projection for Hugin projects is > equirectangular (aimed at e.g. full spherical panoramas to be viewed in > a special viewer). > > A usual camera with a standard (wide angle) lens (e.g. also the built-in > lens from a smartphone) produces input images with rectilinear > projection. Some special lenses widely used for panoramic photography > use fisheye projection. > Here is a nice comparison: <http://wiki.panotools.org/Projections> > > Now when you define your input image as using a cylindrical projection > just to have a familiar looking preview there are two misconceptions: > > - a camera that provides you with photos (I tend to describe photos as > "input images" for Hugin) with a cylindrical projection exists but is > somehow unusual. > See <https://en.wikipedia.org/wiki/Horizon_%28camera%29> > > - if you need to output a rectilinear image (and see that in the preview > window), just set output projection to rectilinear. Be aware that this > would lead to absurd looking results if you stitch images that together > span over a lot more than 90 degrees since that projection > mathematically can only cope with a relatively small field of view. See > the panotools wiki -> Projections link. > > So what do you want to achieve: just correct one image for e.g. barrel > distortion? Stitch a small number of photos to get a partial panorama > from e.g. a lookout point in the mountains? Stitch a full spherical > panorama? Or something completely different? > > I count 32 images in your pto file, what kind of camera and lens do you > use? > > Cheers, > Carl > -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/f2b6f660-5fee-4787-b561-16e208705483%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
