问题描述
无法识别调用 cv2.houghlines()
cv2.houghlines() 将返回 rho 和 theta
那怎么用python代码实现这个cv2.houghlines with def(): self?谢谢!
#coding=utf-8
import cv2
import numpy as np
img = cv2.imread("/home/sunny/workspace/images/road.jpg",0)
img = cv2.GaussianBlur(img,(3,3),0)
edges = cv2.Canny(img,50,150,apertureSize = 3)
lines = *cv2.houghlines*(edges,1,np.pi/180,118)
result = img.copy()
for line in lines[0]:
rho = line[0]
theta= line[1]
print rho
print theta
if (theta < (np.pi/4. )) or (theta > (3.*np.pi/4.0)):
pt1 = (int(rho/np.cos(theta)),0)
pt2 = (int((rho-result.shape[0]*np.sin(theta))/np.cos(theta)),result.shape[0])
cv2.line( result,pt1,pt2,(255))
else:
pt1 = (0,int(rho/np.sin(theta)))
pt2 = (result.shape[1],int((rho-result.shape[1]*np.cos(theta))/np.sin(theta)))
cv2.line(result,(255),1)
cv2.imshow('Canny',edges )
cv2.imshow('Result',result)
cv2.waitKey(0)
cv2.destroyAllWindows()
解决方法
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