Obtain image dimensions while image is hidden?

Obtain image dimensions while image is hidden?

I'm working on something that requires the obtain and image's dimensions and uses them for calculations. However, while the plug-in is doing certain things, I have all of these images hidden (they become rearranged in a carousel). It seems that I cannot get the dimensions of the image if it's display (well, it's parent div is actually the one hidden) is set to "none" in the CSS file.

Anyone have any ideas how I can do this? Right now I have the opacity set to a really low amount, but you can still see it briefly before the plug-in kicks in and moves the images and makes them visible. Thanks