code: def palette(self, label_im):
          '''
          Transfer the VOC color palette to an output mask for visualization.
          '''
          if label_im.ndim == 3:
              label_im = label_im[0]
          label = Image.fromarray(label_im, mode='P')
          label.palette = copy.copy(self.palette)
          return labef palette(self, label_im):
          '''
          Transfer the VOC color palette to an output mask for visualization.
          '''
          if label_im.ndim == 3:
              label_im = label_im[0]
          label = Image.fromarray(label_im, mode='P')
          label.palette = copy.copy(self.palette)
          return label
docs: Transfer the VOC color palette to an output mask for visualization.