edge=cv2.Canny(img,50,150,apertureSize = 3)
lines= cv2.HoughLines(edge,1,np.pi/180,100)
for i in range(len(lines)):
for rho,theta in lines[i]:
a = np.cos(theta)
b = np.sin(theta)
x0 = a*rho
y0 = b*rho
x1 = int(x0 + 1000*(-b))
y1 = int(y0 + 1000*(a))
x2 = int(x0 - 1000*(-b))
y2 = int(y0 - 1000*(a))
cv2.line(img,(x1,y1),(x2,y2),(0,0,255),1)
plt.imshow(img)
在python的Opencv中没有HoughLines()的情况下我可以解决此问题吗?