Hi Micah,

2010/5/13 Micah Chaney <[email protected]>

> harry,
>
> here are the error logs for the TIFF lib error, and hugin crashing when
> opening a PTO with the preview window open.  i didn't want to clutter the
> google group with this, its extremely long.
>
> i will continue to give you feedback as i find bugs.  thanks for your time
> and effort.
>
>
Unfortunately I can't do much with your crash log as it doesn't give me a
clue where it fails.

Your tiff warning is due to the fact that your tiff contains multiple tiff
files.

For the others in this list, the repeated warnings are:
"TIFF library warning
tiff module: TIFFReadDirectory"

I'm sure that your tiffs are created from a DSLR (a canon or nikon?) either
directly, or via the RAW convertor delivered with your camera. If you open
such a tiff in OSX Preview you will see that it has 2 images. A full
resolution 16bit tiff, most probably with an alpha-mask, and a small preview
tiff. Programs that do support this can load the small preview fast and
display the large tiff a bit later, or show it as a preview in a file
manager or thumbs gallery. The library automatically loads the big (default)
image from the tiff and not the preview.

If have seen this also with enfuse often. Enfuse can't handle these tiffs
and crashes on it. I had to write a patch for my ImageFuser(1) program to
overcome that behavior from enfuse.
Even more: I think that the only reason that hugin does not crash (on all
platforms) when having to handle these kind of tiffs in stacked panos, is
because nona (and align_image_stack) are not that intelligent and just grab
the first image in the tiff that they encounter. And then they deliver a
single (cropped) tiff to enfuse and enblend which than can handle these new
intermediate "single tiff" images.

Please let me know whether I'm correct in my analysis of the tiff behavior.


Harry

(1): http://imagefuser.sourceforge.net/

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