hough lines transform code example
Example: python detect lines
img = cv2.imread('src.png')
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
kernel_size = 5
blur_gray = cv2.GaussianBlur(gray,(kernel_size, kernel_size),0)
low_threshold = 50
high_threshold = 150
edges = cv2.Canny(blur_gray, low_threshold, high_threshold)
rho = 1
theta = np.pi / 180
threshold = 15
min_line_length = 50
max_line_gap = 20
line_image = np.copy(img) * 0
lines = cv2.HoughLinesP(edges, rho, theta, threshold, np.array([]),
min_line_length, max_line_gap)
for line in lines:
for x1,y1,x2,y2 in line:
cv2.line(line_image,(x1,y1),(x2,y2),(255,0,0),5)
lines_edges = cv2.addWeighted(img, 0.8, line_image, 1, 0)