[ptx] Autopano 16-bit Images - No Control Points

[alexandre jenny]

> > What is already done and working :
> > - 16 bits tolerant
> 
> I thought that meant that 16-bit images could now be used as input.  
> Where are things going awry?  Any help would be appreciated.
> 
> Thanks much,

I already reported on the website that some 16 bits tiff files are not
well decoded. It's effectively a bug on my side I have to solve.

Regards
   Alexandre