1 import cv2
2 import numpy as np
3 def fan() :
4 f=open("picture.txt","r")
5 a = []
6 b = []
7 for eachline in f:
8 eachline = eachline.strip()
9 eachline = eachline.split(" ")
10 for i in eachline:
11 i = str(i)
12 b.append(i)
13 if len(b) == 4:
14 a.append(b)
15 b = []
16
17 i_mg = cv2.imread("jiangnan.jpg")
18 i=0
19 for picture in a :
20
21 x = int(picture[0])
22 y = int(picture[1])
23 w = int(picture[2])
24 h = int(picture[3])
25 i+=1
26 I_mg = i_mg[y:h,x:w]
27 c = cv2.imwrite(str(i)+".jpg", I_mg)
28 return
29 #获取图像数据
30 def on_mouse(event ,x,y,flag,param):
31 global events
32 global img
33
34 if events[event]==‘CV_EVENT_LBUTTONDOWN‘:
35 print "(%d,%d):" % (y,x)
36 print img[y,x,:]
37 c=str(y)
38 d=str(x)
39
40 cv2.imshow("img", img)
41 l.write(c)
42 l.write(" ")
43 l.write(d)
44 l.write(" ")
45 return
46
47 l=open("picture.txt","w")
48 f=open("picture.txt","r")
49 img = cv2.imread("jiangnan.jpg")
50
51 events = [‘CV_EVENT_MOUSEMOVE‘, ‘CV_EVENT_LBUTTONDOWN‘,
52 ‘CV_EVENT_RBUTTONDOWN‘,‘CV_EVENT_MBUTTONDOWN‘,
53 ‘CV_EVENT_LBUTTONUP‘,‘CV_EVENT_RBUTTONUP‘,
54 ‘CV_EVENT_MBUTTONUP‘ , ‘CV_EVENT_LBUTTONDBLCLK‘,
55 ‘CV_EVENT_RBUTTONDBLCLK‘,‘CV_EVENT_MBUTTONDBLCLK‘]
56
57 #def getdistance(co1,co2):
58 #return np.sqrt(sum((co1-co2)*(co1-co2)))
59
60 cv2.namedWindow(‘img‘)
61 cv2.setMouseCallback(‘img‘,on_mouse,1)
62 cv2.imshow("img", img)
63
64 cv2.waitKey(0)
65 l.close()
66 cv2.destroyAllWindows()
67 fan()