code: def fix_jp2_image(image, bit_depth):
      
      if bit_depth in [8, 16]:
          return image
      if bit_depth == 15:
          try:
              return image >> 1
          except TypeError:
              raise IOError('Failed to read JPEG 2000 image correctly. Most likely reason is that Pillow did not '
                            'install OpenJPEG library correctly. Try reinstalling Pillow from a wheel')
  
      raise ValueError('Bit depth {} of jp2 image is currently not supported. '
                       'Please raise an issue on package Github page'.format(bit_depth))
docs: Because Pillow library incorrectly reads JPEG 2000 images with 15-bit encoding this function corrects the
      values in image.
  
      :param image: image read by opencv library
      :type image: numpy array
      :param bit_depth: bit depth of jp2 image encoding
      :type bit_depth: int
      :return: corrected image
      :rtype: numpy array