def mirrorVerticalLtoR():
  # get the picture
  file = pickAFile ()
  source = makePicture(file)
  mirrorpoint = int(getWidth(source)/2)
  for y in range(1,getHeight(source)):
    for xOffset in range(1,mirrorpoint):
      pright = getPixel(source, xOffset+mirrorpoint,y)
      pleft = getPixel(source, mirrorpoint-xOffset,y)
      c = getColor(pleft)
      setColor(pright,c)

  openPictureTool (source)


def mirrorVerticalRtoL():
  # get the picture
  file = pickAFile ()
  source = makePicture(file)
  mirrorpoint = int(getWidth(source)/2)
  for y in range(1,getHeight(source)):
    for xOffset in range(1,mirrorpoint):
      pright = getPixel(source, xOffset+mirrorpoint,y)
      pleft = getPixel(source, mirrorpoint-xOffset,y)
      c = getColor(pright)
      setColor(pleft,c)

  openPictureTool (source)

def mirrorHorizontal():
  # get the picture
  file = pickAFile ()
  source = makePicture(file)
  mirrorpoint = int(getHeight(source)/2)
  for yOffset in range(1,mirrorpoint):
    for x in range(1,getWidth(source)):
      pbottom = getPixel(source,x,yOffset+mirrorpoint)
      ptop = getPixel(source,x,mirrorpoint-yOffset)
      setColor(pbottom,getColor(ptop))

  openPictureTool (source)