import cv2
import numpy as np

img = cv2.imread('.image.jpg')

gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
edges = cv2.Canny(gray, 500, 460)
lines = cv2.HoughLinesP(edges, 1, np.pi/180, 30, maxLineGap=250)
for line in lines:
   x1, y1, x2, y2 = line[0]
   cv2.line(img, (x1, y1), (x2, y2), (0, 0, 128), 1)

cv2.imwrite('linesDetected.jpg', img)