Hi Thomas,
Thanks for the reply, I'll take a look at the development versions. I 
didn't realised work had been done on BigTIFF. I haven't managed to get a 
large file to output in PNG yet, I'm probably doing something wrong. I can 
get outputs in JPEG but would rather use a lossless file for the further 
processing so BigTiff may be an answer. Using the command line for final 
output is OK with me so I think you may have solved it.
Thanks,
Paul

On Wednesday, 6 December 2017 18:52:57 UTC, T. Modes wrote:
>
> Hi Paul,
>
> Am Montag, 4. Dezember 2017 12:47:14 UTC+1 schrieb Paul Elliott:
>>
>> This is probably a fairly basic question. What output format are people 
>> using for large panoramas (64K X 32K ) ?
>> I've hit the file size limtitation on Tiff. I'm not sure about PNG as I 
>> thought it was more for small web images, in any case large PNG outputs 
>> seem to fail for me ( I could look deeper into this if PNG is considered 
>> appropriate).
>>
>
> PNG should have no size limitation in this range. So it should be possible 
> to use. (But I have no own experience, my panos are small.) But I found 
> same reports that not all programs can handle such big PNG images.
> Concerning TIFF, the development versions of Hugin and enblend/enfuse are 
> capable to generate BigTIFF files and can so overcome the TIFF file size 
> limitation.
> (So you will need the versions from both repositories. In both cases the 
> bigtiff switch have to added manually, either on the command line or in the 
> user defined output sequence. It is not added automatically.)
>
> Thomas
>
>

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