I don't think you are alone in having this problem.<div><br></div><div>Assigning UUIDs may have as many drawbacks as advantages. For example, some image editing software may not propagate them when it should, or may propagate when it shouldn't. Or, you may end up with the same photo taken off the camera at different points ending up with different UUIDs. </div>
<div><br></div><div>I suspect a simplistic image-match algorithm would better solve your problem. </div>