I now *think* I have an idea of what's going on here.
Whatever it is seems to happen only if I have Output: Normal, "Blended
panorama" checked *at the same time* as any of the first three options
under Exposure fusion. *Without* "Blended panorama" checked, I get
expected results from "Blended and fused panorama" and "Blended
exposure layers."
I think what I took to be incorrect output files actually were
intermediate (temp) files created by, perhaps, enblend.
The "Stitching" window does not show in the application switcher, or
in Hugin's "Window" menu (something I found counter-productive, FYI).
When things stopped happening, the "Stitching" window was lost among
many other windows I had opened and I assumed everything had
successfully completed successfully. That window apparently went
away when I quit Hugin.
But I think what happened is that enblend stalled or hung, and I
previously I didn't notice it. Today, I noticed that messages had
stopped appearing in the "Stitching" window and the odd collection of
files that had been accumulating in my work folder stopped
accumulating. (That "work" folder contains the source images and the
Hugin project file. It is also where I specified the output files be
created.)
While I went on some errands, I left everything running. About 4
hours later, nothing has changed. Activity Monitor tells me that
enblend is taking about 85 to 95 percent of my CPU time, so it's still
running and I suppose is busy at something.
For this run, I had selected Normal: "Blended panorama and "Exposure
fusion: Blended and fused panorama." In my work folder are now a
number of files:
Just one, named <panoName>.tif, which looks like it s the blended and
fused version. [Note: of course, "<panoName>" is just a placeholder
for the actual name I used.]
Then there are 24 files named <panoName>0000.tif through
<panoName>0023.tif.
Next, there are 8 files named <panoName>_exposure_layers_0000.tif
through <panoName>0021.tif
Finally, a single file named <panoName>exposure_00.tiff. That's only
4KB
The last messages in the "Stitching" window are
enblend: info: loading next image: <panoName>_exposure_layers_0000.tif
1/1
enblend: info: loading next image: <panoName>_exposure_layers_0003.tif
1/1
enblend: info: loading next image: <panoName>_exposure_layers_0006.tif
1/1
I don't really need an "answer" to any of my experience here, as I
seem to be getting what I want as long as I do NOT check anything
under "Normal" on the Stitcher tab. (Of course, not having such
mysterious behavior happen would be more pleasing.)
But I am puzzled about the temp file locations. If these *are* temp
files, why are they appearing here, rather than in the "Temporary dir"
location I have specified in Hugin prefs? Furthermore, why is nona
apparently putting *its* temp files in /var/folders/Hg/ ?
I'll stop now. Thanks,
eo
On Jul 21, 2010, at 1:22 PM, Bruno Postle wrote:
On Wed 21-Jul-2010 at 12:12 -0700, Eric O'Brien wrote:
Mind you, the problem isn't (yet) a failure to blend... it is a
failure to keep images in three "layers" rather than break the
project up into one "layer" per source image.
Exactly how does Hugin determine which images belong "together?" If
it is the exposure value, how close to identical do these need to be?
0.5EV, but this only applies when you have chosen 'Blended and fused
panorama'. At some point this needs to become configurable, but
Hugin currently doesn't give any feedback as to where it thinks
there are stacks and exposure layers.
Finally, can someone point me to documentation on stacks?
There is some here: http://wiki.panotools.org/Hugin_Stitcher_tab#Exposure_fusion
..but there isn't anything yet on 'linked stacks', which is a new
feature for 2010.2.0.
--
Bruno
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