Well, in cases like this, the only thing I can think of is to create an action which simply crops the canvas, but place a stop action on the script to allow you to manually enter how much you want to crop. But again, you would have to manually determine how many pixels you need to crop inwards.
I thought you were going to show an image that had (say a 20 pixel white/black border) - then I would have said you could use the magic wand (or maybe "select color"), then create an action to reverse that selection then crop, but that wouldn't work with this photo. If all the images have the same thickness of border, you can create an action to just crop the image X amount of pixels. Do ALL your images have this exact border?
