schiarisciDueVolte

def schiarisciDueVolte(pict):
# @param pict: Picture
  for p in getPixels(pict):
    col = getColor(p)
    lightCol = makeLighter(col)
    lighterCol = makeLighter(lightCol)
    setColor(p, lighterCol)

  show(pict) # questo non ci stava



myPict = makePicture(pickAFile())
schiarisciDueVolte(myPict)