ViewImage is a simple image viewer that has been optomized for use on the Dingoo with Dingux. See the included README for full instructions & information.

Changes:

Zoom & Pan: Press A to zoom an image to full size then use D-Pad to pan around. X to return to normal mode.
View Image Info: Press Y to toggle the info display on/off. Displayed info includes filename and image size.
Slideshow Mode: Use the Hold switch to lock the controls, & ViewImage will cycle through all the images in the directory, with a 10 second delay on each image.
Bugfix: Auto-scaling fixed to handle square images properly.

http://boards.dingoonity.org/dingux-releases/viewimage-for-dingoo-dirt-simple-image-viewer/