1. A method of processing an image containing undesirable pixels, said method comprising: receiving a coarse identification of a location of the undesirable pixels, wherein the coarse identification includes identification of at least one undesirable pixel and at least one desirable pixel in the image; automatically determining, by a computer, an area in the image to be analyzed for undesirable pixel values according to the coarse identification received based upon a shape of the undesirable pixels being identified; in the area determined to be analyzed, automatically classifying the pixels as one of undesirable and desirable; and storing the classifications of the pixels.