Hi Sukima, On 20.04.2016 15:44, Sukima wrote: <snip> > I used RawTherapee <https://tritarget.org/#RawTherapee> to pre-process > the Raw files I downloaded from the camera. Since the auto settings > seemed pretty good I kept them except I set the white balance to > *Shade*. I batch saved all the images to *16 bit TIFF*s (Uncompressed).
If you do full sphere panos, make sure to disable lens corrections and vignetting correction. Hugin will do a much better job for your specific lens/camera. > the images including the hand held nadir. I used the *Full Frame > Fisheye* with the Focal Length of '8' which in the past seemed like it The Samyang 8mm lens is a stereographic projection lens, see http://michel.thoby.free.fr/SAMYANG/Early%20test%20report.html for more information. And, according to my experience, the projection selection influences the control point detection, so just changing the projection in a existing pto won't help. Make sure you set the "focal length multiplier" correctly four your camera, that should be around 1.6 for the 1000D. > around the tripod in all three nadir shots. Finally I click optimize and > then open the /GL Previw/ window. What exactly did you optimize for? In expert mode, you can choose between several optimization levels. I normally start with "Positions (Incremental from anchor)" and work my way down to "Everything without translation". And then I "Show control points" icon in the top bar, sort the control points by distance and inspect all the points with a distance >10. Or, if I'm lacy (so most of the time) I use the "select by Distance" button, select everything above let's say 10, and then delete them. Then I redo the last optimization, and do some more pruning of control points. Rinse and repeat to your liking, but be aware that you may end up with unconnected images if you overdo this, but practise makes perfect ;) Another option would be the "Actions->Control Points->keep 5 CPs per image pair" menu entry. But this uses the Phyton plugin interface and I don't know if this has been packaged in the 2014 Mac version you use. > And everything looked great. I then > opened the stitcher view and selected a width of *1024* so the rendering > would be super fast while I previewed. I found that the GL Preview > glossed over some artifacts that you don't notice till the final renders. You can not really trust the preview if you are aiming for quality: If it would be possible to assemble a quality panorama in realtime, we would not need the PTBatcher. On the other hand, if your preview just shows a crazy tangle of lines, the final image will not be any better. And if you want a high quality, sharp image, don't limit the output to 1024 pixels. In my setup the final image width is around 6000 pixels and by condensing this to 1024 pixels by combining roughly 6 pixels to one, you definitely will loose sharpness. If I need a smaller image, I normally use the panotools-scipt erect2cubic script from http://search.cpan.org/dist/Panotools-Script/ resize and sharpen thcubic images in gimp and then reassemble them with cubic2erect. The setting of File->Preferences->Programs->Nona->Default interpolator(i) may play a role in this, too. But I'm not versed well enough to give a recommendation here. > > I noticed that the hand held nadir shot (although almost aligned) had > parallax issues. Mainly since the nadir was a set of wood boards. So I Most probably your hand held shot was not from the exactly same point as the ones from the tripod. In this case, you would need to apply a second lens to your nadir shot and optimize this image for xyz. But I have never been able to pull this off successfully, so your mileage may vary. I hope this gives you some starting points. With kind regards Stefan Peter -- -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? (See https://en.wikipedia.org/wiki/Posting_style for details) -- 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 hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/5717C179.4060908%40swissonline.ch. For more options, visit https://groups.google.com/d/optout.
