lumLineCheck

def lumLineCheck(pict):
#@param:
#   pict: picture;
    height = getHeight(pict)
    width = getWidth(pict)
    count = 0
    for y in range(0,height):
        u = lineList(y,pict)
        a = False
        if not a:
            for i in range(1,len(u)):
                if univ(u[0],u[i]):
                    a = True
        if a:
            count = count+1
    return count
#-------------------------------------------------------------------------------
def lineList(i,pict):
#@param:
#   i: int, y axis index;
#   pict: picture;
    u = []
    width = getWidth(pict)
    for x in range(0,width):
        u.append(getPixel(pict,x,i))
    return u
#-------------------------------------------------------------------------------
def univ(x,D1):
# Universal quantifier "for every";
#@param:
#   x: item;
#   D: list of items;
#   return: bool;
    for item in D1:
        if not lumCheck(x,item):
            return False
    return True
#-------------------------------------------------------------------------------
def lumCheck(pix1,pix2):
#@param:
#   pix1, pix2: pixel;
#   return: bool;
  if luminance(pix1) == luminance(pix2):
    return True
  else:
    return False
#-------------------------------------------------------------------------------
def luminance(pix):
#@param:
#   pix: pixel
#   return: int, luminance;
    r = getRed(pix)
    g = getGreen(pix)
    b = getBlue(pix)
    luminance = (r+g+b)
    return (luminance)
#-------------------------------------------------------------------------------