how to copy pics from background album?

[babywhy9]

there are a few really nice images that come default on my lumia 920 i want to use them with the paper shuffle app but it can't see that since background album is hidden. i can't seem to access or save them to my pictures hub. by default in phone settings, when i go to set the lockscreen in settings, it lets me choose bing or a picture. when i choose a picture, it opens up picture hub and one of the album is called "backgrounds" which has a few nice pictures and different shades of color that seem to be default with windows phone 8. so i been using one of those pics for awhile, but if i try to go to the photos through picture hub, the "backgrounds" album doesn't show up or hidden from view. how can i access that so i can choose one of those pictures to include in my paper shuffle or even share it with a friend?

 

[eortizr]

????