Adobe Photoshop is one of the most versatile and sophisticated image editors. There are several versions and flavours available:
- For the amateur often bundled with a digital camera or a scanner named 'photoshop LE' (older) or 'photoshop Elements' (recent).
- For the professional (or who ever wants to pay the higher price) more featured and simply named 'photoshop' or 'photoshop CS'
Photoshop CS is currently the only image editor that allows layered Full 16 bit workflow. For any other panorama work photoshop is recommended although not strictly necessary since f.e. Panorama Tools Plugins work with many different image editors as long as they are compatible to use photoshop plugins (like f.e. IrfanView).
Some (randomly chosen) features of current pro version (photoshop CS):
- Full color management.
- 16 bit layers
- large image support up to 300,000 x 300,000 pixels
- action recorder for simple automated tasks
More information on http://www.adobe.com
Alternatives to photoshop
The Gimp is a free image editor, however it doesn't yet support 16 bit colordepth.