On 06/11/2013 12:26 PM, Isaac Gouy wrote:
On Tuesday, May 1, 2012 12:16:20 PM UTC-7, Bruno Postle wrote:
On Tue 01-May-2012 at 03:35 -0700, AlekseyM wrote:
>What library Hugin uses to create tiff files? Maybe it is possible to
>add some options to specify different tiff format?
It would be possible, but the alpha channel in the enblend TIFF
output is useful since a lot of panoramas have transparent areas.
While I agree that it's useful to support alpha channel (and I've used
that masking capability with Enfuse), It seems that image processing
software intended for photographers tends not support alpha channel TIFF
even when it does support 48bit TIFF.
Image processing software intended for a broader audience, intended for
illustrators, is more likely to support alpha channel TIFF.
For example, the free to use, Serif Photo Plus Starter Edition, opened
all the problem TIFFs and allowed them to be exported as 24bit or 32bit
TIFF.
DxO Optics Pro wouldn't open the converted 32bit TIFF but did open the
converted 24bit TIFF.
Unfortunately it seems very unlikely that the makers of software for
photographers will be persuaded to support alpha channel TIFF.
I understand that the conversion is possible with ImageMagick but
as-well-as my reluctance to install all that stuff on my Windows
install, even Ubuntu now shows a warning that ImageMagick cannot be
authenticated (whatever that means).
Perhaps the better approach would be yet-another-utility-program, based
on libtiff, which strips the alpha channel and could be used after
Enblend or Enfuse?
Hmmm, Rawtherapee opens Hugin TIFFs with no problems or complaints. GIMP
only complains about them being 16-bit per channel. Haven't tried
opening one in Bibble 5/Aftershot Pro, but that is software intended for
photographers.
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