-
Notifications
You must be signed in to change notification settings - Fork 5
/
match_images.py
203 lines (165 loc) · 7.07 KB
/
match_images.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Program to match two images based on histograms.
Usage:
match_images.py ImageA ImageB
This is just a first version so that other people can play around with it.
Expect the code to change a lot!
"""
#
# (c) Multichill, 2009
# (c) pywikibot team, 2009-2013
#
# Distributed under the terms of the MIT license.
#
__version__ = '$Id$'
#
import StringIO
import wikipedia
from PIL import Image
def matchImagePages(imagePageA, imagePageB):
"""
This functions expects two image page objects.
It will return True if the image are the same and False if the images are
not the same
"""
imageA = getImageFromImagePage(imagePageA)
imageB = getImageFromImagePage(imagePageB)
(imA_width, imA_height) = imageA.size
(imB_width, imB_height) = imageB.size
imageB = imageB.resize((imA_width, imA_height))
imageA_topleft = imageA.crop((0, 0, int(imA_width / 2), int(imA_height / 2)))
imageB_topleft = imageB.crop((0, 0, int(imA_width / 2), int(imA_height / 2)))
imageA_topright = imageA.crop((int(imA_width / 2), 0, imA_width,
int(imA_height / 2)))
imageB_topright = imageB.crop((int(imA_width / 2), 0, imA_width,
int(imA_height / 2)))
imageA_bottomleft = imageA.crop((0, int(imA_height / 2), int(imA_width / 2),
imA_height))
imageB_bottomleft = imageB.crop((0, int(imA_height / 2), int(imA_width / 2),
imA_height))
imageA_bottomright = imageA.crop((int(imA_width / 2), int(imA_height / 2),
imA_width, imA_height))
imageB_bottomright = imageB.crop((int(imA_width / 2), int(imA_height / 2),
mA_width, imA_height))
imageA_center = imageA.crop((int(imA_width * 0.25), int(imA_height * 0.25), int(imA_width * 0.75), int(imA_height * 0.75)))
imageB_center = imageB.crop((int(imA_width * 0.25), int(imA_height * 0.25), int(imA_width * 0.75), int(imA_height * 0.75)))
wholeScore = matchImages(imageA, imageB)
topleftScore = matchImages(imageA_topleft, imageB_topleft)
toprightScore = matchImages(imageA_topright, imageB_topright)
bottomleftScore = matchImages(imageA_bottomleft, imageB_bottomleft)
bottomrightScore = matchImages(imageA_bottomright, imageB_bottomright)
centerScore = matchImages(imageA_center, imageB_center)
averageScore = (wholeScore + topleftScore + toprightScore +
bottomleftScore + bottomrightScore + centerScore) / 6
print u'Whole image ' + str(wholeScore)
print u'Top left of image ' + str(topleftScore)
print u'Top right of image ' + str(toprightScore)
print u'Bottom left of image ' + str(bottomleftScore)
print u'Bottom right of image ' + str(bottomrightScore)
print u'Center of image ' + str(centerScore)
print u' -------------'
print u'Average ' + str(averageScore)
# Hard coded at 80%, change this later on.
if ((averageScore*100) > 80):
print u'We have a match!'
return True
else:
print u'Not the same.'
return False
def getImageFromImagePage(imagePage):
""" Get the image object to work based on an imagePage object """
imageURL = imagePage.fileUrl()
imageURLopener = wikipedia.MyURLopener
imageWebFile = imageURLopener.open(imageURL)
imageBuffer = StringIO.StringIO(imageWebFile.read())
image = Image.open(imageBuffer)
return image
def matchImages(imageA, imageB):
""" Match two image objects. Return the ratio of pixels that match """
histogramA = imageA.histogram()
histogramB = imageB.histogram()
totalMatch = 0
totalPixels = 0
if not (len(histogramA) == len(histogramB)):
return 0
for i in range(0, len(histogramA)):
totalMatch = totalMatch + min(histogramA[i], histogramB[i])
totalPixels = totalPixels + max(histogramA[i], histogramB[i])
if totalPixels == 0:
return 0
return float(totalMatch)/float(totalPixels)*100
def main():
site = wikipedia.getSite(u'commons', u'commons')
#Array of images to work on
images = []
imageTitleA = u''
imageTitleB = u''
familyA = u''
familyB = u''
langA = u''
langB = u''
imagePageA = None
imagePageB = None
for arg in wikipedia.handleArgs():
if arg.startswith('-familyA:'):
if len(arg) == len('-familyA:'):
familyA = wikipedia.input(u'What family do you want to use?')
else:
familyA = arg[len('-familyA:'):]
elif arg.startswith('-familyB:'):
if len(arg) == len('-familyB:'):
familyB = wikipedia.input(u'What family do you want to use?')
else:
familyB = arg[len('-familyB:'):]
elif arg.startswith('-langA:'):
if len(arg) == len('-langA:'):
langA = wikipedia.input(u'What language do you want to use?')
else:
langA = arg[len('-langA:'):]
elif arg.startswith('-langB:'):
if len(arg) == len('-langB:'):
langB = wikipedia.input(u'What language do you want to use?')
else:
langB = arg[len('langB:'):]
else:
images.append(arg)
if not (len(images) == 2):
raise wikipedia.Error, 'require two images to work on.'
else:
imageTitleA = images[0]
imageTitleB = images[1]
if not (imageTitleA == u''):
if not (langA == u''):
if not (familyA == u''):
imagePageA = wikipedia.ImagePage(wikipedia.getSite(langA,
familyA),
imageTitleA)
else:
imagePageA = wikipedia.ImagePage(wikipedia.getSite(langA,
u'wikipedia'), imageTitleA)
else:
imagePageA = wikipedia.ImagePage(wikipedia.getSite(u'commons',
u'commons'),
imageTitleA)
if not (imageTitleB == u''):
if not (langB == u''):
if not (familyB == u''):
imagePageB = wikipedia.ImagePage(wikipedia.getSite(langB,
familyB),
imageTitleB)
else:
imagePageB = wikipedia.ImagePage(wikipedia.getSite(langB,
u'wikipedia'), imageTitleB)
else:
imagePageB = wikipedia.ImagePage(wikipedia.getSite(u'commons',
u'commons'),
imageTitleB)
if imagePageA and imagePageB:
matchImagePages(imagePageA, imagePageB)
if __name__ == "__main__":
try:
main()
finally:
wikipedia.stopme()