I think Enblend doesn't like some of the pixel values in your images. You could try specifying a different blend colorspace (--blend-colorspace=IDENTITY might be a good option, but I'm just guessing). Or you could try Multiblend <http://horman.net/multiblend/>, which has no such colourspace qualms (though only because it ignores colourspaces completely) and is a LOT quicker. On Tuesday, 6 April 2021 at 07:50:42 UTC+1 Jared wrote:
> > Hello, all. New hugin user here. I'm trying to stich together a scanned > poster comprised of 8 different parts using the scanning tutorial here: > http://hugin.sourceforge.net/tutorials/scans/en.shtml > > I *think* I did everything correctly, but when stitching it fails with > this error: > > Blending images... > enblend: info: loading next image: ffmap20000.tif 1/1 > enblend: info: loading next image: ffmap20001.tif 1/1 > enblend: > /tmp/portage/media-gfx/enblend-4.2.0_p20161007-r1/work/enblend-4.2.0_p20161007/src/fixmath.h:487: > > double enblend::PyramidScale<PyramidIntegerBits, > PyramidFractionBits>::scale_lightness_for_pyramid(double) const [with int > PyramidIntegerBits = 9; int PyramidFractionBits = 7]: Assertion `result >= > 0.0' failed. > > I tried multiple times but always get the same error. The images are > large, about maybe 300 MB TIFFs (x8) when uncompressed, so I thought maybe > I was running out of RAM or disk or something, but I have 32 GB of ram and > still had 14.5 GB reported free when running in a 1 second loop the last > time it failed. Disk also looks good. > > As mentioned, I'm new to hugin, so I could certainly be doing something > wrong myself. Also may be running into some kind of size limits (though > that seems unlikely) or maybe a bug. Would appreciate if anyone can > provide some guidance on how to resolve, or at least further troubleshoot. > > Here's the full log: > https://boxdog.legroom.net/public/ffmap2.log > > And the PTO file for reference: > https://boxdog.legroom.net/public/ffmap2.pto > > Thanks! > > -- > Jared > -- 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/577023ba-40e1-45c4-bf60-96aadbf836f7n%40googlegroups.com.
