What are some alternatives?
When comparing PTgui and Stitch Panorama, you can also consider the following products
Hugin - Hugin is an easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
Microsoft Image Composite Editor - Microsoft Image Composite Editor is an advanced panoramic image stitcher.
AutoPano - Autopano is the most spectacular breakthrough in automated picture stitching in recent years.
PhotoStitch - PhotoStitch is a part of the EOS Utilities package (2 Cds) included in the box when we purchase a Canon EOS Digital Camera. The latest version of this...
PTStitcherNG - Fast Panorama Stitcher and Blender, implemented in SIMD-Math.
AutoStitch Panorama - Autostitch takes a step forward in panoramic image stitching by automatically recognising matching...