** Changed in: hugin
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1633352
Title:
"enblend: warning: unable to run Dijkstra optimizer" for large
panorama
Status in Hugin:
Invalid
Bug description:
I have a panorama with 14 TIFF images with 16 bit per color (in summary about
200 megapixel). The images fit rather nicely and there is no warning before
conversion.
But when converting these warnings appear:
enblend: info: loading next image: 2749-27620005.tif 1/1
enblend: warning: unable to run Dijkstra optimizer
enblend: note: seam-line end point outside of cost-image
enblend: note: contour #2 of 2, segment #1 of 1, vertex #2716 of 2717
enblend: info: loading next image: 2749-27620006.tif 1/1
It's hard to find out from these texts where the actual problem is and
how to fix it. I have a slight suspect that the 32-bit version might
have a memory problem with such a huge (28152x3284) panorama. Up to
recently I was running the 64-bit version of the 2015 edition, and I
never saw such problems before, but I use 16-bit TIFF as source rather
rarely. Anyway:
In the resulting panorama you can clearly see two artefacts; one at the to of
the panorama, the other one at the bottom. I'm attaching the relevant part of
the preview to relate the position of the artefact to the images. I extracted a
part of the resulting panorama, scaled it down, and I'm attaching it as part of
the data for this bug. Unfortunately the material is too huge for an attaching.
I tried to make a smaller test case using JPEG images, but the the problem
did not exist.
When trying 16bit TIFFs that were downscaled, the problem even occurred twice
(using a different set of control points).
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