Create an artboard automatically to the size of an image (Illustrator)

I am trying to figure out how to make an artboard automatically snap to the size of an image.

I know that you can draw a rectangle, then go to the Artboards window and choose "Convert to Artboards" from the flyout menu with the rectangle(s) selected. This does not work for images. The problem I have is that I have about 25 images that I've placed into an Illustrator document (buttons for the design of a site) and need to have them all be in their own artboards. Of course I could do this by hand but I was wondering, for future reference, if there is a way just select the image and have an artboard created to its dimensions.

I couldn't find an answer everywhere (all searches took me to how to make a rectangle an artboard, not an image).

Thanks!

Answer

Use the Artboard tool (Shift+O) and double-click the image, the artboard size will snap to the image dimensions.