1119Re: hugin 0.6 - amazing!
- Aug 1 1:09 PM--- In PanoToolsNG@yahoogroups.com, Yuval Levy <yahoo06@...> wrote:
> > Did you have a chance to evaluate the automatic vignetting and TCAcorrections ?
> >Thanks for the thoughts. Not everyone shoots RAW of course, and for
> No and in their current incarnation they are of no interest to me. IMHO
> the best place to correct for lens aberrations, particularly for TCA, is
> when demosaicizing the RAW, before interpolation into TIFF. This is what
> Adobe RAW Converter, BibblePro and SilkyPix all do. I feed corrected
> TIFFs into my stitching tool. For such functionality to be interesting
> in a stitching tool, it would have to take RAW files as input. I have
> not searched for such a functionality in hugin. I'd rather see stitching
> tools able to process HDR files than RAW files.
them (me) vignetting correction as a pre-stitch step makes perfect
sense. Since it is a large scale effect, doing it at the RAW stage
should make very little difference. If you're concerned about
numerical clipping and round-off inherent in VC and TCA, you can of
course convert your RAW to 16bit and work with that... everything in
Hugin works on all the many supported data types (up to 32bit floating
point!). See, e.g.,
The other *main* advantage which you didn't see is the ability of
Hugin to directly estimate from the resulting overlap of images the
radial falloff due to vignetting. So even for people who don't care
to go to all the trouble, the "waving vertical bands of dark" issue
can be improved.
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