docstr: A quarter-sized version of the frame (half-width, half-height)
docstr_tok: ["A","quarter-sized","version","of","the","frame","(","half-width",",","half-height",")"]
code: def half_resolution_frame(self):
      """A quarter-sized version of the frame (half-width, half-height)"""
  
      if "half" not in self.frame_variants:
          self.frame_variants["half"] = self._to_half_resolution()
  
      return self.frame_variants["half"]
  
imports: import skimage.color
  import skimage.measure
  import skimage.transform
  import skimage.filters
  import skimage.morphology
  import numpy
  import io
  from PIL import Image
label_desc: Use image node_id 3 for calling the GameFrame obj's underlying member method code with example usage: obj.half_resolution_frame() and returns: self