code: def _rescale(self, bands):
          
          self.output("Rescaling", normal=True, arrow=True)
  
          for key, band in enumerate(bands):
              self.output("band %s" % self.bands[key], normal=True, color='green', indent=1)
              bands[key] = sktransform.rescale(band, 2)
              bands[key] = (bands[key] * 65535).astype('uint16')
  
          return bands
docs: Rescale bands