'**SUMMARY**
This method automatically copies all of the image data around the blob and puts it in a new
image. The resulting image has the size of the blob, with the blob data copied in place.
Where the blob is not present the background is black.
**RETURNS**
Returns just the image of the blob (cropped to fit).
**EXAMPLE**
>>> img = Image("lenna")
>>> blobs = img.findBlobs()
>>> blobs[-1].blobImage().show()'

def blobImage(self):

    return self.mImg
