Line_Recognition

import numpy as np
import cv2

img = cv2.VideoCapture(0)

while(True):

    ret, frame = img.read()
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    edges = cv2.Canny(gray, 50, 150)
    lines = cv2.HoughLinesP(edges, 1, np.pi / 55, 120, maxLineGap=35)
    if lines is None:
       print
    else:
        for line in lines:
              x1, y1, x2, y2 = line[0]
              cv2.line(frame, (x1, y1), (x2, y2), (255, 0, 0), 3)


    cv2.imshow("Image", frame)
    cv2.imshow("Edge",edges)


    #cv2.imshow("Edges", gray)
    if cv2.waitKey(1) & 0xFF == ord('`'):
        break

img.release()
cv2.destroyAllWindows()