from PIL import Image
im = Image.open('dtk.bmp')
pix = im.load()

#==================================================================================
#功能：判断一个像素的RGB颜色是否被填涂，若被填涂返回True，否则返回False
#参数：r, g, b为一个像素的RGB颜色值
def judge_pix(r, g, b): 
    gray = 0.299 * r + 0.587 * g + 0.114 * b
    return gray < 132

#功能：判断一个信息点是否被前途，若被填涂返回True，否则返回False
#参数：x, y为该信息点左上角像素的位置信息
def judge_rec(x, y): 
    w = 26
    h = 11
    cnt = 0
    for i in range(x, x + w):
        for j in range(y, y + h):
            r, g, b = pix[i, j]
            if judge_pix(r, g, b):
                cnt += 1
    return cnt / (w * h) > 0.64

#功能：传入一列第一个信息点左上角像素位置信息，返回该列填涂的数值
#参数：x, y为该列第一个信息点左上角像素位置信息
def judge_col(x, y):
    y_span = 28
    kh = -1
    for i in range(10):
        if judge_rec(x, y + i * y_span):
            kh = i
    return kh
#====================================================================================

#设置第一列第一个信息点左上角位置信息
x0 = 10
y0 = 96
x_span = 41  #两个横向相邻信息点的间距
#补充实现后续代码
for i in range(9):
    print(judge_col(x0 + i * x_span, y0), end = " ")