point[1] = 1
# линия вправо
draw_s.line([(point[0], point[1]), (point[0] + 4, point[1])],
fill="black",
width=1)
point[0] += 4
im.save('digital_signal.png')
# im.show()
# print("Введите числовую полседовательность")
# N = list(map(int, input().split()))
# print("Выберите способ кодирования", "NRZ", "NRZI", "MANCH", sep='\n')
if __name__ == '__main__':
tk = ['NRZ', 'NRZI', 'MANCH']
N = [i for i in range(255)]
for tmp in tk:
if tmp == "NRZ":
nrz(N)
print("Complete")
elif tmp == "NRZI":
nrzi(N)
print("Complete")
elif tmp == "MANCH":
manch(N)
print("Complete")
else:
print("Erorr")
ng = Image.open('digital_signal.png')
print(tmp, N == decode_img(ng, tmp))
def test_nrz_0123(self):
test_list = list(range(256))
nrz(test_list)
self.assertEqual(list(test_list), decode_img(Image.open('digital_signal.png'), 'NRZ'))
def test_manch_random(self):
test_list = [randint(0, 255) for x in range(1024)]
manch(test_list)
self.assertEqual(list(test_list), decode_img(Image.open('digital_signal.png'), 'MANCH'))
def test_nrzi_random(self):
test_list = [randint(0, 255) for x in range(1024)]
nrzi(test_list)
self.assertEqual(list(test_list), decode_img(Image.open('digital_signal.png'), 'NRZI'))
def test_manch_longer(self):
test_list = list(range(256))*3
manch(test_list)
self.assertEqual(list(test_list), decode_img(Image.open('digital_signal.png'), 'MANCH'))
def test_nrzi_longer(self):
test_list = list(range(256))*3
nrzi(test_list)
self.assertEqual(list(test_list), decode_img(Image.open('digital_signal.png'), 'NRZI'))