code: def convert(self):
          
          (width, height) = self.img.size
          bgcolor = utils.term.bgcolor
          self.img.load()
          for y in range(height):
              for x in range(width):
                  rgba = self.img.getpixel((x, y))
                  if len(rgba) == 4 and rgba[3] == 0:
                      yield None
                  elif len(rgba) == 3 or rgba[3] == 255:
                      yield xterm256.rgb_to_xterm(*rgba[:3])
                  else:
                      color = grapefruit.Color.NewFromRgb(
                          *[c / 255.0 for c in rgba])
                      rgba = grapefruit.Color.AlphaBlend(color, bgcolor).rgb
                      yield xterm256.rgb_to_xterm(
                          *[int(c * 255.0) for c in rgba])
              yield "EOL"
docs: Yields xterm color codes for each pixel in image