hugin-devs team mailing list archive

[Lukas Wirz <l.wirz@xxxxxxxxxxxx>]

Public bug reported:

I'm frequently getting black artifacts on some blended photos (none or
one in small projects, easily 5 to 10 artifacts in projects of more than
100 photos).

The occurrence of artifacts does not depend on the output resolution.
The shape, however, is dependent on the resolution.

Appended are three photos.  On my machine blending yields the following output: 
$ enblend -v -o foo.tif img_7306-73170000.tif img_7306-73170010.tif img_7306-73170011.tif --fine-mask
enblend: info: loading next image: img_7306-73170000.tif 1/1
enblend: info: loading next image: img_7306-73170010.tif 1/1
enblend: images do not overlap - they will be combined without blending
enblend: use the "-l" flag to force blending with a certain number of levels
enblend: info: loading next image: img_7306-73170011.tif 1/1
enblend: info: creating fine blend mask: 1/3 2/3 3/3
enblend: info: optimizing 2 distinct seams
enblend: info: Annealing Optimizer, s0: 1/4 2/4 3/4 4/4
enblend: info: Annealing Optimizer, s1: 1/4 2/4 3/4 4/4
enblend: info: Dijkstra Optimizer: s0 s1
enblend: info: using 5 blending level(s)
enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
enblend: info: generating Laplacian pyramid: l0 l1 l2 l3 l4
enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
enblend: info: generating Laplacian pyramid: l0 l1 l2 l3 l4
enblend: info: blending layers:              l0 l1 l2 l3 l4
enblend: info: collapsing Laplacian pyramid: l4 l3 l2 l1 l0
enblend: info: writing final output


The version is
$ enblend -V
enblend 4.1-700e60bc31b5

Copyright (C) 2004-2012 Andrew Mihal.
License GPLv2+: GNU GPL version 2 or later <http://www.gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Andrew Mihal and others.

Please tell me if any additional output would be helpful.

cheers, lukas

** Affects: enblend
     Importance: Undecided
         Status: New


** Tags: artefacts

** Attachment added: "minimal example (foo.tif is the output)"
   https://bugs.launchpad.net/bugs/1153546/+attachment/3568073/+files/minimal_example.tgz

-- 
You received this bug notification because you are a member of Hugin
Developers, which is subscribed to Enblend.
https://bugs.launchpad.net/bugs/1153546

Title:
  black artifacts after blending

Status in Enblend:
  New

Bug description:
  I'm frequently getting black artifacts on some blended photos (none or
  one in small projects, easily 5 to 10 artifacts in projects of more
  than 100 photos).

  The occurrence of artifacts does not depend on the output resolution.
  The shape, however, is dependent on the resolution.

  Appended are three photos.  On my machine blending yields the following output: 
  $ enblend -v -o foo.tif img_7306-73170000.tif img_7306-73170010.tif img_7306-73170011.tif --fine-mask
  enblend: info: loading next image: img_7306-73170000.tif 1/1
  enblend: info: loading next image: img_7306-73170010.tif 1/1
  enblend: images do not overlap - they will be combined without blending
  enblend: use the "-l" flag to force blending with a certain number of levels
  enblend: info: loading next image: img_7306-73170011.tif 1/1
  enblend: info: creating fine blend mask: 1/3 2/3 3/3
  enblend: info: optimizing 2 distinct seams
  enblend: info: Annealing Optimizer, s0: 1/4 2/4 3/4 4/4
  enblend: info: Annealing Optimizer, s1: 1/4 2/4 3/4 4/4
  enblend: info: Dijkstra Optimizer: s0 s1
  enblend: info: using 5 blending level(s)
  enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
  enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
  enblend: info: generating Laplacian pyramid: l0 l1 l2 l3 l4
  enblend: info: generating Gaussian pyramid:  g0 g1 g2 g3 g4
  enblend: info: generating Laplacian pyramid: l0 l1 l2 l3 l4
  enblend: info: blending layers:              l0 l1 l2 l3 l4
  enblend: info: collapsing Laplacian pyramid: l4 l3 l2 l1 l0
  enblend: info: writing final output


  The version is
  $ enblend -V
  enblend 4.1-700e60bc31b5

  Copyright (C) 2004-2012 Andrew Mihal.
  License GPLv2+: GNU GPL version 2 or later <http://www.gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.

  Written by Andrew Mihal and others.

  Please tell me if any additional output would be helpful.

  cheers, lukas

To manage notifications about this bug go to:
https://bugs.launchpad.net/enblend/+bug/1153546/+subscriptions