PixelSpy: a desktop image viewer

(formerly vimage)

Basic controls:

Drag the mouse to pan around the image
Rotate the scroll wheel to zoom in and out
Shift-drag to select a rectangular region
Press "F" to enter true-full-screen mode; Nothing but the image fills your entire screen.

Get the same features on Windows, Mac, and Linux.

Windows	MacOS	Linux

In addition to viewing ordinary rectangular images, vimage can display panoramic images using a variety of mathematical projections.