def getSpacing(im):
    l = im.shape[0]
    vote = np.zeros((l, l // 5 + 1))
    th = im.shape[1]
    result = list()

    for i in range(im.shape[0]):
        for j in range(im.shape[1]):
            if im[i][j] == 1:
                for spacing in range(1, l // 5 + 1):
                    for mul in range(5):
                        startLine = i - mul * spacing
                        if startLine >= 0:
                            vote[startLine][spacing] += 1

    startLine = -1
    tmpV = 0
    for i in range(vote.shape[0]):
        if np.sum(vote[i]) > tmpV:
            startLine = i
            tmpV = np.sum(vote[i])
    # print("StartLine = ", startLine)
    for i in range(vote.shape[0]):
        if np.sum(vote[1]) > tmpV + th:
            result.append(i)
    spacing = -1
    tmpV = 0
    for j in result:
        for i in range(vote.shape[1]):
            if vote[j][i] > tmpV:
                spacing = i
                tmpV = vote[j][i]
    result.append(spacing)
    return vote