def generate_captions(filename, top_n=5):
cnn_features = get_features(filename)
stop_idx = word_to_idx['<START/STOP>']
beam_size = 20
pool = [[[stop_idx], 0]]
first_pass = True
# n.b. this is suboptimal a lot of recalculations occur
while any(each[0][-1] != stop_idx for each in pool) or first_pass:
new_pool = []
for entry in pool:
if entry[0][-1] == stop_idx and not first_pass:
new_pool.append(entry)
continue
probs = predict_probs(entry[0], cnn_features).flatten()
for word_idx in probs.argsort()[-beam_size:]:
k = len(entry[0]) - 1
caption = entry[0] + [word_idx]
score = (entry[1] * k - np.log(probs[word_idx])) / (k + 1)
new_pool.append([caption, score])
pool = sorted(new_pool, key=lambda e: e[1])[:beam_size]
first_pass = False
if beam_size != 5:
beam_size -= 1
pool = sorted(pool, key=lambda e: e[1])[:top_n]
for entry in pool:
entry[1] *= len(entry[0]) - 1
entry[0] = u' '.join([idx_to_word[word_idx] for word_idx in entry[0][1:-1]])
pool = sorted(pool, key=lambda e: e[1])
return zip(*pool)
def generate_captions(filename, top_n=5):
cnn_features = get_features(filename)
stop_idx = word_to_idx['<START/STOP>']
beam_size = 20
pool = [[[stop_idx], 0]]
first_pass = True
# n.b. this is suboptimal a lot of recalculations occur
while any(each[0][-1] != stop_idx for each in pool) or first_pass:
new_pool = []
for entry in pool:
if entry[0][-1] == stop_idx and not first_pass:
new_pool.append(entry)
continue
probs = predict_probs(entry[0], cnn_features).flatten()
for word_idx in probs.argsort()[-beam_size:]:
k = len(entry[0]) - 1
caption = entry[0] + [word_idx]
score = (entry[1] * k - np.log(probs[word_idx])) / (k + 1)
new_pool.append([caption, score])
pool = sorted(new_pool, key=lambda e: e[1])[:beam_size]
first_pass = False
if beam_size != 5:
beam_size -= 1
pool = sorted(pool, key=lambda e: e[1])[:top_n]
for entry in pool:
entry[1] *= len(entry[0]) - 1
entry[0] = u' '.join(
[idx_to_word[word_idx] for word_idx in entry[0][1:-1]])
pool = sorted(pool, key=lambda e: e[1])
return zip(*pool)
def extract_features(image_dict, seg_dict):
features = dict()
for image_name in image_dict.keys():
print image_name
features[image_name] = feature_extractor.get_features(image_dict[image_name], image_name, seg_dict[image_name])
return features
def predictNeural(self, image):
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
inputs_f = []
inputs_f.append(fe.get_features(gray))
#print "raw data about image", inputs_f
# Create a matrix of predictions
inputs_f.append(np.array([0., 10., 22., 26., 43., 37.,
30., 27., 36., 48., 59., 70.,
80., 82., 80., 75., 66., 57.,
49., 123., 213., 123., 29., 25.,
25., 24., 25., 30., 38., 57.,
70., 92., 115., 122., 174., 199.,
224., 255., 235., 116., 43., 26.,
20., 18., 15., 1., 14., 12.,
12., 10., 11., 13., 17., 18.,
11., 10., 124., 18., 13., 13.,
37., 17., 5., 1., 8.80175781, 2.59635413, 1.29720053]))
inputs = np.array(inputs_f)
predictions = np.empty( (len(inputs), 1), 'float' )
# See how the network did.
#print "inputs", inputs
#print str(self.nnet)
self.nnet.predict(inputs, predictions)
#print "predictions", predictions
# Compute # correct
pred_labels = predictions
#print pred_labels
return pred_labels[0]
def test(self, sample_img, numNeigh=11): k = numNeigh gray = cv2.cvtColor(sample_img,cv2.COLOR_BGR2GRAY) sample = fe.get_features(gray) sample = np.array(sample,np.float32).reshape((1,len(sample))) nearest = self.knn.find_nearest(sample, k) return nearest[0]
def predictSVM(self, im): gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY) inputs_f = [] inputs_f.append(fe.get_features(gray)) inputs = np.array(inputs_f) result = self.svm.predict_all(inputs) print result return result[0]
def lineparser(line):
if line[0] is not "#":
line_fields = line.split("\t")
if "PE" in line_fields[7]:
try:
if pefile.PE("extract_files/"+line_fields[22],fast_load=True).is_exe(): #just another way to validate
print "EXE FILE DOWNLOADED FROM %s BY %s"%(line_fields[2],line_fields[3])
print requests.post('http://localhost:8080/ML',json=feature_extractor.get_features("extract_files/"+line_fields[22])).json()
except:
print "Unable to open the file"
def run(self):
self.key = "mlmd"
try:
if os.path.exists(self.file_path):
#extract PE data, send to MLMD server, set data=reply
features = feature_extractor.get_features(self.file_path)
res = requests.post("http://localhost:8080/ML",json=features)
data = res.json()
except SomethingFailed:
raise CuckooProcessingError("Failed")
return data
def main(argv):
if len(argv) != 1:
print("Usage: python3 detect_object.py input-image-path")
exit()
# READ IMAGE
IMAGEPATH = argv[0]
img = Image.open(IMAGEPATH).resize((224, 224))
# LOAD PRETRAINED VGG16 MODEL FOR FEATURE EXTRACTION
vgg_model = get_model()
# EXTRACT IMAGE FEATURE
img_feature = get_features(vgg_model, img)
# L2 NORMALIZE FEATURE
img_feature = normalize(img_feature, norm='l2')
# LOAD ZERO-SHOT MODEL
model = load_keras_model(model_path=MODELPATH)
# MAKE PREDICTION
pred = model.predict(img_feature)
# LOAD CLASS WORD2VECS
class_vectors = sorted(np.load(WORD2VECPATH, allow_pickle=True),
key=lambda x: x[0])
classnames, vectors = zip(*class_vectors)
classnames = list(classnames)
vectors = np.asarray(vectors, dtype=np.float)
# PLACE WORD2VECS IN KDTREE
tree = KDTree(vectors)
# FIND CLOSEST WORD2VEC and GET PREDICTION RESULT
dist, index = tree.query(pred, k=5)
pred_labels = [classnames[idx] for idx in index[0]]
# PRINT RESULT
print()
print("--- Top-5 Prediction ---")
for i, classname in enumerate(pred_labels):
print("%d- %s" % (i + 1, classname))
print()
return
def get_similarity_list(source_id):
global unique_images
source_image_data = feat_ex.get_np_array_from_image("test/generated/" +
str(source_id) +
".jpg")
# get features for source image
feat = feat_ex.get_features(intermediate_model, source_image_data)
# get similarity measure with entire dataset
cosine_dist_matrix = feat_ex.compute_cosine_distance_matrix(
feat, feat_matrix)
similarity_score_index = cosine_dist_matrix.flatten().argsort(
)[::-1][:num_similar]
similarity_scores = cosine_dist_matrix[similarity_score_index].flatten()
similar_images = np_original[similarity_score_index]
# plot_similar(source_image_data, similarity_score_index,
# similar_images, similarity_scores)
similarity_details = []
for i in range(len(similar_images)):
# keep track of images we havent seen
if (similarity_score_index[i] not in unique_images):
unique_images.append(similarity_score_index[i])
similarity_dict = {
"id": int(similarity_score_index[i]),
"score": (round(similarity_scores[i], 4)),
"layer": layer_name,
"sourceid": source_id
}
similarity_details.append(similarity_dict)
# print(similarity_details)
print(source_id, " > processing similarity details using VGG layer ",
layer_name)
return similarity_details
def apply_pca():
dataset_size = 112
dim = 100352
i = 0
matrix = np.zeros((dataset_size, dim))
for imagePath in glob.glob(dataset + os.path.sep + "*.*"):
# extract our unique image ID (i.e. the filename)
features = get_features(imagePath)
matrix[i] = features
i += 1
print(matrix.shape)
reduced_dim = 100
pca = PCA(n_components=reduced_dim)
principal_comp = pca.fit_transform(matrix)
print(principal_comp.shape)
# print()
i = 0
for imagePath in glob.glob(dataset + os.path.sep + "*.*"):
with h5py.File(index_file, 'a') as h:
k = imagePath[imagePath.rfind('h') + 1:]
h.create_dataset(k, data=principal_comp[i])
i += 1
test_ids = shuffled_ids[int(all_img_num * test_ratio) *
testset:int(all_img_num * test_ratio) *
(testset + 1)]
train_img_num = len(train_ids)
print ">> train-test split (%d, %d)" % (len(train_ids), len(test_ids))
##################################################
# EXTRACT FEATURES
##################################################
fdir = hp.cur_dir + "tmp/features_colbow.csv"
if os.path.isfile(fdir):
print ">> use existing features"
features = np.genfromtxt(fdir, delimiter=',')
else:
print ">> extract features"
features = fe.get_features(images,
hp.FeatureType.COL_BOW) # imgNum*featureLen
np.savetxt(fdir, features, delimiter=',')
print ">> features extracted"
##################################################
# FIT A CLASSIFIER USING RANDOM DATA
##################################################
all_data = train_ids
sampled_num = int(train_img_num * hp.sampling_ratio)
sampled_ids = all_data[:sampled_num]
lbs = [labels[x] for x in sampled_ids]
fts = [features[x] for x in sampled_ids]
classifier = cf.get_classifier(fts, lbs, hp.ClassifierType.RANDOM_FOREST)
print ">> fit classifier with %d labeled samples" % sampled_num
train_features = [features[x] for x in train_ids]
def get_data(use_precomputed=False):
if use_precomputed:
filename = "all_data.pkl"
if not isfile(filename):
print("couldn't load pickle file. recomputing features")
return get_data(use_precomputed=False)
else:
print("loading pickled data")
return load_obj(filename)
else:
# # subjects = [101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117]
# subjects = [101,103,104,106,107,108,109,110,111,112,113,114,115,116,117]
# labels = [1, 2, 3, 4, 5]
# class_names = "none,eyebrows lower,eyebrows raiser,cheek raiser,nose wrinkler,upper lip raiser,mouth open".split(',')
# is_moving_data = False
X_all_raw = None
raw_index = [
] # list of tuples containing (subject number, label number, trial index)
X_all = None
y_all = []
groups = []
# accumulate the data for the all the subjects
print("reading raw data into memory")
for subject in subjects:
# subject_data = np.zeros(shape=(0,201,10))
for label in labels:
path = get_path(subject, label, is_moving_data)
# [ trial * window frames * sensor channels ]
subject_matrix = scipy.io.loadmat(path)['data_chunk']
groups += [subject] * subject_matrix.shape[0]
y_all += [label] * subject_matrix.shape[0]
for trial in range(subject_matrix.shape[0]):
raw_window = subject_matrix[trial, :, :]
# print(raw_window.shape)
if X_all_raw is None:
X_all_raw = np.empty(shape=(0, len(raw_window), 10),
dtype=float)
# print(X_all_raw.shape)
# exit()
X_all_raw = np.concatenate(
(X_all_raw, raw_window[np.newaxis, :, :]), axis=0)
raw_index += [(subject, label, trial)]
print("normalizing data")
# normalize accelerometer signals
a = np.mean(np.std(X_all_raw[:, :, 0:3], axis=2))
b = np.mean(np.mean(X_all_raw[:, :, 0:3], axis=2))
X_all_raw[:, :, 0:3] = (X_all_raw[:, :, 0:3] - b) / a
# normalize gyroscope signals
a = np.mean(np.std(X_all_raw[:, :, 3:6], axis=2))
b = np.mean(np.mean(X_all_raw[:, :, 3:6], axis=2))
X_all_raw[:, :, 3:6] = (X_all_raw[:, :, 3:6] - b) / a
# normalize eog signals
# a = np.mean(np.std(X_all_raw[:,:,6:], axis=2))
# b = np.mean(np.mean(X_all_raw[:,:,6:], axis=2))
# X_all_raw[:,:,6:10] = (X_all_raw[:,:,6:10] - b) / a
mean_eog_signals = np.mean(np.mean(X_all_raw[:, :, 6:10], axis=1),
axis=0)
X_all_raw[:, :, 6:10] = X_all_raw[:, :, 6:10] - mean_eog_signals
print("saving raw data")
raw_index = np.array(raw_index)
save_obj((X_all_raw, raw_index),
"../../res/all_data_raw.pkl",
sanitized=False)
# exit()
print("extracting features")
for trial in tqdm(range(X_all_raw.shape[0])):
feature_extracted_window, feature_names = get_features(
X_all_raw[trial, :, :], include_eog, include_imu)
feature_extracted_window = np.array(feature_extracted_window)
if X_all is None:
X_all = np.empty(shape=(0, len(feature_extracted_window)),
dtype=float)
X_all = np.concatenate(
(X_all, feature_extracted_window[np.newaxis, :]), axis=0)
y_all = np.array(y_all)
# np.savetxt("y_all.txt", y_all) # DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG
groups = np.array(groups)
data_blob = (X_all, y_all, groups, feature_names, subjects, labels,
class_names, is_moving_data, include_eog, include_imu)
print("pickling data")
save_obj("all_data.pkl", data_blob)
return data_blob
from feature_extractor import get_features
from xg_model import xgb_score
from xg_model import xgb_model
from xg_model import save_result
if __name__ == '__main__':
train, test, feature_types = get_features(regenerate=False)
print(train[0].head())
# get model score
# the default cv is 5
xgb_score(train)
# get model predict
#predict = xgb_model(train[0], train[1], test[0])
# save model predict to prediction/
# return is the csv content. type is Dataframe
# the default csv name is test_result
result = save_result(train, test)
print(result.head())
def test(self, sample_img): k = 10 gray = cv2.cvtColor(sample_img,cv2.COLOR_BGR2GRAY) sample = fe.get_features(gray) sample = np.array(sample,np.float32).reshape((1,len(sample))) return self.knn.find_nearest(sample, k)[0]
def lbp_pipeline(gray_image, **kwargs):
return get_features(*image_preprocessing(gray_image))
dim = 100352
i = 0
matrix = np.zeros((dataset_size, dim))
for imagePath in glob.glob(dataset + os.path.sep + "*.*"):
# extract our unique image ID (i.e. the filename)
features = get_features(imagePath)
matrix[i] = features
i += 1
print(matrix.shape)
reduced_dim = 100
pca = PCA(n_components=reduced_dim)
principal_comp = pca.fit_transform(matrix)
print(principal_comp.shape)
# print()
i = 0
for imagePath in glob.glob(dataset + os.path.sep + "*.*"):
with h5py.File(index_file, 'a') as h:
k = imagePath[imagePath.rfind('h') + 1:]
h.create_dataset(k, data=principal_comp[i])
i += 1
# apply_pca()
for imagePath in glob.glob(dataset + os.path.sep + "*.*"):
# extract our unique image ID (i.e. the filename)
k = imagePath[imagePath.rfind('h') + 1:]
features = get_features(imagePath)
with h5py.File(index_file, 'a') as h:
h.create_dataset(k, data=features)
