About memory requirements of PTStitcher

- Please be sure to use the current version of PTStitcher/pano12.dll. 
A previous version (2.5a1) had a memory leak in the Tiff-to-PSD converter.

- The remapper needs to hold one input image in memory plus some work 
space. The remapped output image may be almost any size, much more than 
the available RAM in the system. If huge panoramas are to be created I 
recommend the output option "TIFF_m" (for multilayer TIFF) which should 
work on almost any system. It creates one remapped TIFF image with the 
size of the final panorama for each input image. These images can be 
merged in Photoshop.

- All other output options reread the remapped image file, which 
therefore has to fit into memory. As Max Lyons has pointed out, there 
is a limit of 256 MB maximum heap size in Windows 98, which limits 
processing of panoramas to 64 million pixels on this platform. I do 
not know the corresponding limits on Linux or Macs, but they seem to 
be higher. If the VirtualAlloc() call proposed by Max turns out to be 
robust I will add it to the next version.

Regards

Helmut Dersch