Have you tried removing the sticker from the part and then scanning it?
Also, if you plan on using POV-Ray, then a distorted image might actually be what you want. If you project the scanned image onto the 3D part, then the result may look like the real thing.
Also, if you plan on using POV-Ray, then a distorted image might actually be what you want. If you project the scanned image onto the 3D part, then the result may look like the real thing.