text: 
  def paraCap() :  # 파라볼라 캡.
  
      global window, canvas, paper, filename, inImage, outImage, inW, inH, outW, outH
  
  
  
  
      Lookup = [0] * 256
  
      for i in range(256) :
  
          Lookup[i] = int(255- 255.0 * (( i / 128.0 - 1) * ( i / 128.0 - 1)))
  
  
  
  
      # 중요! 출력메모리의 크기를 결정
  
      outW = inW;  outH = inH;
  
      outImage = [];   tmpList = []
  
      for i in range(outH):  # 출력메모리 확보(0으로 초기화)
  
          tmpList = []
  
          for k in range(outW):
  
              tmpList.append(0)
  
          outImage.append(tmpList)
  
      #############################
  
      # 진짜 영상처리 알고리즘을 구현
  
      ############################
  
      for  i  in  range(inH) :
  
          for  k  in  range(inW) :
  
                  outImage[i][k] = Lookup[inImage[i][k]]
  
  
  
  
      display()
  