luminositaPixelRighe

def numRow(pict):
#@param pict: Picture
#@param count: int; numero righe con pixel aventi la stessa luminisota
  count=0
  for y in range(0,getHeight(pict)):
    if numPix(pict,y):
      count=count+1
  return count

def numPix(source,h):
#@param source: Picture
#@param h: int; coordinata y dell immagine
#@return bool
  count=0
  pix1=getPixel(source,0,0)
  for x in range(0,getWidth(source)):
    pix2=getPixel(source,x,h)
    if lum(pix1)==lum(pix2):
      count=count+1
  if count==getWidth(source):
    return true
  else:
    return false

def lum(px):
#@param px: Pixel
#@return int; luminosita del pixel
  r=getRed(px)
  g=getGreen(px)
  b=getBlue(px)
  lumi=r+g+b
  return (lumi)