Thanks for this info. I understand that these are just warnings. I know that 
the TIFs are still working in gimp, convert, etc. 

But "convert" for example is complaining about tag 34864:

convert: Unknown field with tag 34864 (0x8830) encountered. 
`TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/861.

and this tag is noted as "mandatory":

Code    Name            Short description                               Source 
of tag           Note
36864   ExifVersion     The version of the supported Exif standard.     Exif 
Private IFD        Mandatory in the Exif IFD.

That brings the question to my mind if the TIFs are compatible with the 
non-Linux world: Windows, Mac, Photoshop, etc. Do you know?

Matthias


Am 28.01.2016 um 10:19 schrieb Pedro Côrte-Real:
> On Wed, Jan 27, 2016 at 6:22 AM, Matthias Bodenbinder
> <[email protected]> wrote:
>> Hi,
>>
>> I started to experiment with focus stacking with enfuse, which needs the 
>> hugin tools for aligning the pictures. Therefore I exported 16 bit TIF from 
>> DT. But when I use these TIF with align_image_stack from hugin tools or in 
>> gimp I am getting these warnings:
>>
>> align_image_stack:
>> TIFFReadDirectory: Warning, Unknown field with tag 18249 (0x4749) 
>> encountered.
>> TIFFReadDirectory: Warning, Unknown field with tag 36867 (0x9003) 
>> encountered.
>>
>> gimp:
>> Unknown field with tag 18249 (0x4749) encountered
>> Unknown field with tag 36867 (0x9003) encountered
>>
>> But I can still work with the pictures. It doesnt matter if I export TIF 
>> uncompressed or deflated.
>>
>> Why is that?
> 
> This is almost surely just a tag that exiv2 doesn't know about so it
> warns about it. darktable 2.0 should now have those warnings silenced
> but in 1.6 you'd probably have the same warning in the darktable
> output when opening the raw file. It gets copied to the output and
> generates the same warnings later on. Unless there's some actual
> problem you're experiencing with these images just ignore the
> warnings.
> 
> Cheers,
> 
> Pedro
> 


___________________________________________________________________________
darktable developer mailing list
to unsubscribe send a mail to [email protected]

Reply via email to