def ribaltamentoOrizzontale(pict):
#@param pict: Picture
  w,h = getWidth(pict), getHeight(pict)
  
  #creo un'immagine vuota per poi renderla identica a pict
  newPict = makeEmptyPicture(w,h)
  for y in range(h):
    for x in range(w):
      color = getColor(getPixel(pict,x,y))
      setColor(getPixel(newPict,x,y),color)
  
  mirrorPoint = w/2
  for j in range(h):
    for i in range(mirrorPoint):
      leftP = getPixel(newPict,i,j) # pixel attuale
      rightP = getPixel(newPict,(w-i-1),j) # pixel specchiato
      #swap tra pixel: attraverso lo scambio dei colori
      colorL,colorR = getColor(leftP),getColor(rightP)
      setColor(rightP, colorL)
      setColor(leftP, colorR)
      
  show(newPict)

def ribaltamentoVerticale(pict):
#@param pict: Picture
  w,h = getWidth(pict), getHeight(pict)
  
  #creo un'immagine vuota per poi renderla identica a pict
  newPict = makeEmptyPicture(w,h)
  for y in range(h):
    for x in range(w):
      color = getColor(getPixel(pict,x,y))
      setColor(getPixel(newPict,x,y),color)
      
  mirrorPoint = h/2
  for i in range(w):
    for j in range(mirrorPoint):
      leftP = getPixel(newPict,i,j) # pixel attuale
      rightP = getPixel(newPict,i,(h-j-1)) # pixel specchiato
      #swap tra pixel: attraverso lo scambio dei colori
      colorL,colorR = getColor(leftP),getColor(rightP)
      setColor(rightP, colorL)
      setColor(leftP, colorR)
      
  show(newPict)