You "should" use a tripod, but hugin can help when you can't. As for the number of images, the bare minimum is that you need more bits than the output.
In short, this means that you will output a LDR in the end, which is typically 8 bit. So you need more than 8 as an input. Some cameras now take raw in 12-14 bits per channel. This way, a single image "can" be used to generate an HDR and tonemap it. By far not the best way, but 100% doable. It's actually one of the best way to HDR a moving subject. Typically people will use 3 images 0 and +\- 2 stops like you said (and oh, only vary the time, not the Av) as you mentioned, but sometime, this is not an option. Hope this helps, nick On Fri, Dec 4, 2009 at 4:32 AM, Heliooos <helio...@gmail.com> wrote: > > 1) loaded two images, taken right after the other with only exposure > > changed > > I thought that for HDR you need 3 images - "over-exposed" "normal" > exposure and "under-exposed" - in best way made in auto exposure > bracketing (AEB) which automatically creates 3 shots with different > exposures for HDR > http://en.wikipedia.org/wiki/High_dynamic_range_imaging > > And I think you should use tripod or put the camera on something to > provide the same position for the shots. > > -- > You received this message because you are subscribed to the Google Groups > "hugin and other free panoramic software" group. > A list of frequently asked questions is available at: > http://wiki.panotools.org/Hugin_FAQ > To post to this group, send email to hugin-ptx@googlegroups.com > To unsubscribe from this group, send email to > hugin-ptx+unsubscr...@googlegroups.com<hugin-ptx%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/hugin-ptx > -- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx
