def test_load_sift():
f = NamedTemporaryFile(delete=False)
fname = f.name
f.close()
f = open(fname, 'wb')
f.write(b'''2 128
133.92 135.88 14.38 -2.732
3 12 23 38 10 15 78 20 39 67 42 8 12 8 39 35 118 43 17 0
0 1 12 109 9 2 6 0 0 21 46 22 14 18 51 19 5 9 41 52
65 30 3 21 55 49 26 30 118 118 25 12 8 3 2 60 53 56 72 20
7 10 16 7 88 23 13 15 12 11 11 71 45 7 4 49 82 38 38 91
118 15 2 16 33 3 5 118 98 38 6 19 36 1 0 15 64 22 1 2
6 11 18 61 31 3 0 6 15 23 118 118 13 0 0 35 38 18 40 96
24 1 0 13 17 3 24 98
132.36 99.75 11.45 -2.910
94 32 7 2 13 7 5 23 121 94 13 5 0 0 4 59 13 30 71 32
0 6 32 11 25 32 13 0 0 16 51 5 44 50 0 3 33 55 11 9
121 121 12 9 6 3 0 18 55 60 48 44 44 9 0 2 106 117 13 2
1 0 1 1 37 1 1 25 80 35 15 41 121 3 0 2 14 3 2 121
51 11 0 20 93 6 0 20 109 57 3 4 5 0 0 28 21 2 0 5
13 12 75 119 35 0 0 13 28 14 37 121 12 0 0 21 46 5 11 93
29 0 0 3 14 4 11 99''')
f.close()
# Check whether loading by filename works
load_sift(fname)
with open(fname, 'r') as f:
features = load_sift(f)
os.remove(fname)
assert_equal(len(features), 2)
assert_equal(len(features['data'][0]), 128)
assert_equal(features['row'][0], 133.92)
assert_equal(features['column'][1], 99.75)
def test_load_sift():
f = NamedTemporaryFile(delete=False)
fname = f.name
f.close()
f = open(fname, 'wb')
f.write(b'''2 128
133.92 135.88 14.38 -2.732
3 12 23 38 10 15 78 20 39 67 42 8 12 8 39 35 118 43 17 0
0 1 12 109 9 2 6 0 0 21 46 22 14 18 51 19 5 9 41 52
65 30 3 21 55 49 26 30 118 118 25 12 8 3 2 60 53 56 72 20
7 10 16 7 88 23 13 15 12 11 11 71 45 7 4 49 82 38 38 91
118 15 2 16 33 3 5 118 98 38 6 19 36 1 0 15 64 22 1 2
6 11 18 61 31 3 0 6 15 23 118 118 13 0 0 35 38 18 40 96
24 1 0 13 17 3 24 98
132.36 99.75 11.45 -2.910
94 32 7 2 13 7 5 23 121 94 13 5 0 0 4 59 13 30 71 32
0 6 32 11 25 32 13 0 0 16 51 5 44 50 0 3 33 55 11 9
121 121 12 9 6 3 0 18 55 60 48 44 44 9 0 2 106 117 13 2
1 0 1 1 37 1 1 25 80 35 15 41 121 3 0 2 14 3 2 121
51 11 0 20 93 6 0 20 109 57 3 4 5 0 0 28 21 2 0 5
13 12 75 119 35 0 0 13 28 14 37 121 12 0 0 21 46 5 11 93
29 0 0 3 14 4 11 99''')
f.close()
# Check whether loading by filename works
load_sift(fname)
with open(fname, 'r') as f:
features = load_sift(f)
os.remove(fname)
assert_equal(len(features), 2)
assert_equal(len(features['data'][0]), 128)
assert_equal(features['row'][0], 133.92)
assert_equal(features['column'][1], 99.75)
def key_to_descriptor_array(keyfile):
""" changes keys to an array """
if not path.exists(keyfile):
print "Key file doesn't exist."
sys.exit()
f = open(keyfile)
my_sift_data = load_sift(f)
f.close()
return my_sift_data['data']
import cv2
import skimage.io as ski
import numpy as np
from sklearn import svm
import matplotlib.pylab as plt
img = cv2.imread('test.jpg')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
sift = cv2.xfeatures2d.SIFT_create()
kp = sift.detect(gray, None)
img = cv2.drawKeypoints(gray, kp)
cv2.imwrite('sift_keypoints.jpg', img)
ski.load_sift('test2.jpg')
def io_load_sift(self):
"""
Use sklearn.io.load_sift to read sift.key.
"""
file_name = os.path.join(self.data_dir, "sift.key")
io.load_sift(file_name)
from skimage import io
from PIL import Image
from subprocess import call
image = Image.open('sample.png')
image.save('sample.pgm')
call("./sift < book.pgm > chck.key", shell=True)
image = open('chck.key')
rv = io.load_sift(image)
print rv