Google SketchUp Pro 7 is a suite of powerful features and applications for streamlining your professional 3D workflow. Use your 3D creations to wrap your images in Photoshop CS4.
PTGui is panoramic stitching software for Windows and Mac OSX. Originally developed as a Graphical User Interface for Panorama Tools (hence the name), PTGui now is a full featured photo stitching application.
IRFAN VIEW – very capable, incredibly fast – no “bells and whistles”, just does the job! (probably all you’ll ever need for simple work on digital photos) – while you’re there, get the plug-ins too!
GIMP2 – a rival for Photoshop from the open-source community, incredibly powerful program for advanced image manipulation – far less intimidating than Photoshop, but nearly as capable – highly recommended for the enthusiast!
BIMP – really good simple batch processing program – will churn through folders of pictures, renaming, resizing, adding text etc – (ideal if you are dealing with LOTS of pictures! – Requires GIMP)
HeliconFocus – a program that creates one completely focused image from several partially focused images by combining the focused areas.
The Fisheye-Hemi Plug-in produces an aesthetically pleasing image from the fisheye lens!