def ribaltamentoOrizz(pict):
#@param pict: picture
  widht=getWidth(pict)
  mirror=widht/2
  for x in range (0,mirror):
    for y in range (0,getHeight(pict)):
      leftPixel=getPixel(pict,x,y)
      rightPixel=getPixel(pict,widht-1-x,y)
      swap1=getColor(leftPixel)
      swap2=getColor(rightPixel)
      setColor(leftPixel,swap2)
      setColor(rightPixel,swap1)


def ribaltamentoVert(pict):
#@param pict: picture
  height=getHeight(pict)
  mirror=height/2
  for x in range (0,getWidth(pict)):
    for y in range (0,mirror):
      topPixel=getPixel(pict,x,y)
      bottomPixel=getPixel(pict,x,height-1-y)
      swap1=getColor(topPixel)
      swap2=getColor(bottomPixel)
      setColor(topPixel,swap2)
      setColor(bottomPixel,swap1)