It is NOT a nude image. It might be a cropped version of a what originally was a nude image, but that doesn't make it a nude image. If i crop you out of a picture, its no longer a picture of you? Now it is just a woman with a hat and a shoulder that is not covered with some fabric. If mentally you instantly see the original picture, perhaps you have 'stared' too long at that playboy issue.
Though the point others make in this thread, i think is very valid, it is not a jigsaw puzzle. I was expecting software for when i visit my mom (who likes making jigsaw puzzles), quickly snap a picture on my phone of the table with all the pieces and it would assist me in solving it while she leaves the table for a bit to make tea/coffee. (leaving mom flabbergasted with: how did you...)