# -*- coding: utf-8 -*-
"""
Created on Sat Jan 18 15:30:10 2014
@author: duan
"""
# -*- coding: utf-8 -*-
"""
Created on Sat Jan 18 19:38:31 2014
@author: duan
"""
#绘制出图案里面的直线
import cv2
import numpy as np
img = cv2.imread('five.jpeg')
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
edges = cv2.Canny(gray,50,150,apertureSize = 3)
lines = cv2.HoughLines(edges,1,np.pi/180,200)
print((lines))
for linei in lines:
for rho,theta in linei:
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),(255,0,0),2)
cv2.imwrite('houghlines3.jpg',img)
霍夫变换绘制出图案里的直线
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转载自blog.csdn.net/kobesdu/article/details/103053943
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