text: import math
  import colorsys
  from PIL import Image
  
  
  def plasma(w, h):
      out = Image.new("RGB", (w, h))
      pix = out.load()
      for x in range(w):
          for y in range(h):
              hue = 4.0 + math.sin(x / 19.0) + math.sin(y / 9.0) \
                    + math.sin((x + y) / 25.0) + math.sin(math.sqrt(x ** 2.0 + y ** 2.0) / 8.0)
              hsv = colorsys.hsv_to_rgb(hue / 8.0, 1, 1)
              pix[x, y] = tuple([int(round(c * 255.0)) for c in hsv])
      return out
  
  
  if __name__ == "__main__":
      im = plasma(400, 400)
      im.show()