text: """
  Delta E ITP.
  
  https://kb.portrait.com/help/ictcp-color-difference-metric
  """
  from ..distance import DeltaE
  import math
  from .. import algebra as alg
  from typing import TYPE_CHECKING, Any
  
  if TYPE_CHECKING:  # pragma: no cover
      from ..color import Color
  
  
  class DEITP(DeltaE):
      """Delta E ITP class."""
  
      NAME = "itp"
  
      @classmethod
      def distance(cls, color: 'Color', sample: 'Color', scalar: float = 720, **kwargs: Any) -> float:
          """Delta E ITP color distance formula."""
  
          i1, t1, p1 = alg.no_nans(color.convert('ictcp').coords())
          i2, t2, p2 = alg.no_nans(sample.convert('ictcp').coords())
  
          # Equation (1)
          return scalar * math.sqrt((i1 - i2) ** 2 + 0.25 * (t1 - t2) ** 2 + (p1 - p2) ** 2)
  