On 29 Dez. 2011, 00:45, Monkey <davidhorma...@gmail.com> wrote: > Hi all, > > I've developed an alternative to Enblend which I hope might find some > interested users here. It's not a better blender, and it lacks many of > Enblend's features, but it has two redeeming qualities > ... > It should work straight out of the box as Hugin's "alternative Enblend > program".
I've given multiblend a spin, and it doesn't work for me. What happens is that some areas of the output contain large-scale artifacts which aren't merely blending errors but plain wrong. I had the erroneous behaviour occur in 360X180 panoramas, and I assume that the complex patterns of layered transparency resulting from warped fisheye images (my 360X180s are usually 6 around, 1 up two down with a Samyang 8mm) may be the root of the problem. I sent a reduced set of sample images to the author to make sure it wasn't just something my end, and he wrote back saying he could reproduce the behaviour. He had some ideas about what might cause the problems, but no immediate solution. Have a look at the output I got at http://dl.dropbox.com/u/52145569/IMG_2862_IMG_2870_mb.jpg You'll notice the area around the nadir is totally wrong, and there's a nasty glitch in the middle of the lake. Cropping the output to a strip creates more errors: http://dl.dropbox.com/u/52145569/IMG_2862_IMG_2870_mb2_strip.jpg The PTO for the full panorama is http://dl.dropbox.com/u/52145569/IMG_2862_IMG_2870_mb.pto (I removed the CPs) The individual images are 16bit TIFF. I doublechecked with JPEGs as input, the problem persisted, but the colours changed - I had used the --bgr switch to swap the R and B channels which was necessary for my 16bit TIFFs, but with JPEG input I had to remove it. It's hard to see the errors with an image set from ptodummy, since everything is just blended to a mush, but it may be helpful to have a look at the fast preview to see how the images are arranged. The output was made from cropped partial images; when feeding in uncropped TIFF multiblend died with an unhandled page fault. With this problem, plus the missing wraparound (which is bad but much less grave), plus the necessity of manually changing the --bgr depending on source material - I'd recommend to use multiblend with caution. I think it shouldn't be put into hugin bundles until these issues are solved, much as I'd welcome a fast alternative to enblend. Kay -- 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
