In [1]:
import theano

import os, sys
sys.path.insert(1, os.path.join('utils'))

path = 'data/statefarm/'
import utils; reload(utils)
from utils import *


Using Theano backend.

In [2]:
batch_size=16
vgg = Vgg16()
model = vgg.model
last_conv_idx = [i for i,l in enumerate(model.layers) if type(l) is Convolution2D][-1]
conv_layers = model.layers[:last_conv_idx + 1]
conv_model = Sequential(conv_layers)

In [ ]:
# # https://keras.io/preprocessing/image/
# datagen = image.ImageDataGenerator
# for ep in xrange(epochs):
#     print('Epoch', ep)
#     batches = 0
#     for x_batch, y_batch in datagen.flow(x_train, y_train, batch_size=batch_size):
#         model.fit(x_batch, y_batch)
#         batches += 1
#         if batches >= len(x_train) / 32:
#             # we need to break the loop by hand because 
#             # the generator loops indefinitely
#             break

In [3]:
gen = image.ImageDataGenerator()
# test_batches = gen.flow_from_directory(path + 'test', target_size=(224,224), class_mode='categorical',
#                                        shuffle=False, batch_size=batch_size)
test_batches = get_batches(path + 'test', batch_size=batch_size, shuffle=False)


Found 79726 images belonging to 1 classes.

In [ ]:
# test_batches.next()
# test_batches.reset()
# x = conv_model.predict_on_batch(test_batches.next()[0])
# x = conv_model.predict_generator(test_batches, 16)

In [4]:
test_batches.n


Out[4]:
79726

In [23]:
fname = path + 'results/conv_feat_test.dat'
%rm -r $fname
for i in xrange(2):
    print("loop: {}".format(i+1))
    print("generating conv test features..")
    xfeat = conv_model.predict_on_batch(test_batches.next()[0])
    print("appending to bcolz carray..")
    if i == 0:
        c = bcolz.carray(xfeat, rootdir= path+'results/conv_feat_test.dat', mode='a')
    else:
        c.append(xfeat)
c.flush()


loop: 1
generating conv test features..
appending to bcolz carray..
loop: 2
generating conv test features..
appending to bcolz carray..

In [24]:
xfeat


Out[24]:
array([[[[   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
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         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [   0.    ,    0.    ,    0.    , ...,    3.0921,    6.539 ,    0.    ]],

        [[  11.0302,    0.    ,    0.    , ...,  104.4549,   94.2945,   74.0628],
         [   0.    ,    0.    ,    0.    , ...,   59.2804,   64.3558,  108.8341],
         [   0.    ,    0.    ,    0.    , ...,   17.3087,   23.1711,   92.8967],
         ..., 
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,   28.4123],
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [  20.2296,   28.6199,   32.2788, ...,    0.    ,    0.    ,    7.9199]],

        [[   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [  11.9613,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         ..., 
         [   0.    ,    0.    ,    0.    , ...,   31.3901,    2.3591,    0.    ],
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ],
         [   0.    ,    0.    ,    0.    , ...,    0.    ,    0.    ,    0.    ]]]], dtype=float32)

In [25]:
len(xfeat)


Out[25]:
16

In [27]:
loaded_xfeat = bcolz.open(fname)[:]
len(loaded_xfeat)


Out[27]:
32

In [28]:
xfeat[0]


Out[28]:
array([[[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       [[  5.4635,   0.9844,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [ 17.1188,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,  28.9687,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   1.9061],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,  14.328 ,  10.5673]],

       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       ..., 
       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       [[  6.8063,   0.    ,   0.    , ...,  80.0511,  66.2007,  50.1715],
        [  0.    ,   0.    ,   0.    , ...,  58.5223,  48.3066,  77.1832],
        [  0.    ,   0.    ,   0.    , ...,  10.1736,   0.    ,  45.4661],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   6.3318,   0.    ,  11.5814],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.9403,   0.    , ...,   0.    ,   0.    ,   7.0575]],

       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [ 25.7062,  17.0884,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   1.1636,   5.1982],
        [  0.    ,   0.    ,   0.    , ...,   9.673 ,  10.3036,   6.276 ]]], dtype=float32)

In [29]:
loaded_xfeat[16]


Out[29]:
array([[[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       [[  5.4635,   0.9844,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [ 17.1188,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,  28.9687,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   1.9061],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,  14.328 ,  10.5673]],

       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       ..., 
       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ]],

       [[  6.8063,   0.    ,   0.    , ...,  80.0511,  66.2007,  50.1715],
        [  0.    ,   0.    ,   0.    , ...,  58.5223,  48.3066,  77.1832],
        [  0.    ,   0.    ,   0.    , ...,  10.1736,   0.    ,  45.4661],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   6.3318,   0.    ,  11.5814],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.9403,   0.    , ...,   0.    ,   0.    ,   7.0575]],

       [[  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [ 25.7062,  17.0884,   0.    , ...,   0.    ,   0.    ,   0.    ],
        ..., 
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   0.    ,   0.    ],
        [  0.    ,   0.    ,   0.    , ...,   0.    ,   1.1636,   5.1982],
        [  0.    ,   0.    ,   0.    , ...,   9.673 ,  10.3036,   6.276 ]]], dtype=float32)

In [ ]: