Hi,
tried "PortalView Live Desktop Wallpaper" which is offered at the downloadable system background images.
It has an easy to adjust python script where one can choose a livecam and set a refresh rate.
One have to change "username" in the script to it's own username and create a folder to use. Default is "Pictures", but it also has to be created.
I set an own foldername and there is stored just a single image which gets overwritten ev'ry 5 minutes by the new available image.
There are multible instances possible, I use two for my two monitors with two different foldernames and two scripts.
One shows
http://www.opentopia.com/images/cams/world_sunlight_map_rectangular.jpg the other one a nearby webcam pointing to a storks nest.
I start it in kde autostart with an also in the package delivered script. The short startscript has to be adjusted to the username and
folders the name of the python scripts, too.
This is my start script:
#!/bin/bash
python /home/cal/Downloads/live_wallpaper/getpic.py & python /home/cal/Downloads/live_wallpaper/getbild.py
After that a right-click to the desktop, choose folder settings and there "Diaschau" which should, on an english environment, be "slide show". Adjust according to your choosen refreshrate, choose your folder where your images get stored and have fun.
http://imagizer.imageshack.us/a/img820/4359/zxs5.png