How can I undo changes made to a picture I accidentally saved via preview?

The was a picture that I was looking at in my computer, I drew a line with the preview tool. Since my was slow and the app was not responsive, I force quited Preview. I opened the document and it saved the line I drew on the picture as part of the picture. I don't have the original picture but I don't want the line to be there. Can I undo what I have done via a backup or version of this file?