2013/6/12 Gnome Nomad <[email protected]> > On 06/11/2013 10:02 PM, Frederic Da Vitoria wrote: > >> 2013/6/12 Gnome Nomad <[email protected] <mailto:[email protected] >> >> >> >> 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. >> >> Gimp 2.8.4 on Windows does not complain at all, as far as I can see. >> > > Same version I have here, although I run it on Linux, not Windows. > > Does it tell you that the input file has 16-bits per channel, GIMP only > supports 8-bits per channel, so it is dropping the other 8 bits per > channel? That's the GIMP "complaint" I'm referring to. GIMP doesn't support > 48-bit (3 16-bit channels). That's scheduled for GIMP 3.
I know that currently GIMP is still limited to 8 bits / channel. I only meant that GIMP does not complain about the bit depth when loading a 48-bits image. Actually, I have looked everywhere for a mention of the bit depth in Gimp but have been unable to find any. Gimp is very quiet about this :-) -- Frederic Da Vitoria (davitof) Membre de l'April - « promouvoir et défendre le logiciel libre » - http://www.april.org -- -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
