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import argparse
import os
import pickle
import timeit
import cv2
import mxnet as mx
import numpy as np
import pandas as pd
import prettytable
import skimage.transform
from sklearn.metrics import roc_curve
from sklearn.preprocessing import normalize
from onnx_helper import ArcFaceORT
SRC = np.array(
[
[30.2946, 51.6963],
[65.5318, 51.5014],
[48.0252, 71.7366],
[33.5493, 92.3655],
[62.7299, 92.2041]]
, dtype=np.float32)
SRC[:, 0] += 8.0
class AlignedDataSet(mx.gluon.data.Dataset):
def __init__(self, root, lines, align=True):
self.lines = lines
self.root = root
self.align = align
def __len__(self):
return len(self.lines)
def __getitem__(self, idx):
each_line = self.lines[idx]
name_lmk_score = each_line.strip().split(' ')
name = os.path.join(self.root, name_lmk_score[0])
img = cv2.cvtColor(cv2.imread(name), cv2.COLOR_BGR2RGB)
landmark5 = np.array([float(x) for x in name_lmk_score[1:-1]], dtype=np.float32).reshape((5, 2))
st = skimage.transform.SimilarityTransform()
st.estimate(landmark5, SRC)
img = cv2.warpAffine(img, st.params[0:2, :], (112, 112), borderValue=0.0)
img_1 = np.expand_dims(img, 0)
img_2 = np.expand_dims(np.fliplr(img), 0)
output = np.concatenate((img_1, img_2), axis=0).astype(np.float32)
output = np.transpose(output, (0, 3, 1, 2))
output = mx.nd.array(output)
return output
def extract(model_root, dataset):
model = ArcFaceORT(model_path=model_root)
model.check()
feat_mat = np.zeros(shape=(len(dataset), 2 * model.feat_dim))
def batchify_fn(data):
return mx.nd.concat(*data, dim=0)
data_loader = mx.gluon.data.DataLoader(
dataset, 128, last_batch='keep', num_workers=4,
thread_pool=True, prefetch=16, batchify_fn=batchify_fn)
num_iter = 0
for batch in data_loader:
batch = batch.asnumpy()
batch = (batch - model.input_mean) / model.input_std
feat = model.session.run(model.output_names, {model.input_name: batch})[0]
feat = np.reshape(feat, (-1, model.feat_dim * 2))
feat_mat[128 * num_iter: 128 * num_iter + feat.shape[0], :] = feat
num_iter += 1
if num_iter % 50 == 0:
print(num_iter)
return feat_mat
def read_template_media_list(path):
ijb_meta = pd.read_csv(path, sep=' ', header=None).values
templates = ijb_meta[:, 1].astype(np.int)
medias = ijb_meta[:, 2].astype(np.int)
return templates, medias
def read_template_pair_list(path):
pairs = pd.read_csv(path, sep=' ', header=None).values
t1 = pairs[:, 0].astype(np.int)
t2 = pairs[:, 1].astype(np.int)
label = pairs[:, 2].astype(np.int)
return t1, t2, label
def read_image_feature(path):
with open(path, 'rb') as fid:
img_feats = pickle.load(fid)
return img_feats
def image2template_feature(img_feats=None,
templates=None,
medias=None):
unique_templates = np.unique(templates)
template_feats = np.zeros((len(unique_templates), img_feats.shape[1]))
for count_template, uqt in enumerate(unique_templates):
(ind_t,) = np.where(templates == uqt)
face_norm_feats = img_feats[ind_t]
face_medias = medias[ind_t]
unique_medias, unique_media_counts = np.unique(face_medias, return_counts=True)
media_norm_feats = []
for u, ct in zip(unique_medias, unique_media_counts):
(ind_m,) = np.where(face_medias == u)
if ct == 1:
media_norm_feats += [face_norm_feats[ind_m]]
else: # image features from the same video will be aggregated into one feature
media_norm_feats += [np.mean(face_norm_feats[ind_m], axis=0, keepdims=True), ]
media_norm_feats = np.array(media_norm_feats)
template_feats[count_template] = np.sum(media_norm_feats, axis=0)
if count_template % 2000 == 0:
print('Finish Calculating {} template features.'.format(
count_template))
template_norm_feats = normalize(template_feats)
return template_norm_feats, unique_templates
def verification(template_norm_feats=None,
unique_templates=None,
p1=None,
p2=None):
template2id = np.zeros((max(unique_templates) + 1, 1), dtype=int)
for count_template, uqt in enumerate(unique_templates):
template2id[uqt] = count_template
score = np.zeros((len(p1),))
total_pairs = np.array(range(len(p1)))
batchsize = 100000
sublists = [total_pairs[i: i + batchsize] for i in range(0, len(p1), batchsize)]
total_sublists = len(sublists)
for c, s in enumerate(sublists):
feat1 = template_norm_feats[template2id[p1[s]]]
feat2 = template_norm_feats[template2id[p2[s]]]
similarity_score = np.sum(feat1 * feat2, -1)
score[s] = similarity_score.flatten()
if c % 10 == 0:
print('Finish {}/{} pairs.'.format(c, total_sublists))
return score
def verification2(template_norm_feats=None,
unique_templates=None,
p1=None,
p2=None):
template2id = np.zeros((max(unique_templates) + 1, 1), dtype=int)
for count_template, uqt in enumerate(unique_templates):
template2id[uqt] = count_template
score = np.zeros((len(p1),)) # save cosine distance between pairs
total_pairs = np.array(range(len(p1)))
batchsize = 100000 # small batchsize instead of all pairs in one batch due to the memory limiation
sublists = [total_pairs[i:i + batchsize] for i in range(0, len(p1), batchsize)]
total_sublists = len(sublists)
for c, s in enumerate(sublists):
feat1 = template_norm_feats[template2id[p1[s]]]
feat2 = template_norm_feats[template2id[p2[s]]]
similarity_score = np.sum(feat1 * feat2, -1)
score[s] = similarity_score.flatten()
if c % 10 == 0:
print('Finish {}/{} pairs.'.format(c, total_sublists))
return score
def main(args):
use_norm_score = True # if Ture, TestMode(N1)
use_detector_score = True # if Ture, TestMode(D1)
use_flip_test = True # if Ture, TestMode(F1)
assert args.target == 'IJBC' or args.target == 'IJBB'
start = timeit.default_timer()
templates, medias = read_template_media_list(
os.path.join('%s/meta' % args.image_path, '%s_face_tid_mid.txt' % args.target.lower()))
stop = timeit.default_timer()
print('Time: %.2f s. ' % (stop - start))
start = timeit.default_timer()
p1, p2, label = read_template_pair_list(
os.path.join('%s/meta' % args.image_path,
'%s_template_pair_label.txt' % args.target.lower()))
stop = timeit.default_timer()
print('Time: %.2f s. ' % (stop - start))
start = timeit.default_timer()
img_path = '%s/loose_crop' % args.image_path
img_list_path = '%s/meta/%s_name_5pts_score.txt' % (args.image_path, args.target.lower())
img_list = open(img_list_path)
files = img_list.readlines()
dataset = AlignedDataSet(root=img_path, lines=files, align=True)
img_feats = extract(args.model_root, dataset)
faceness_scores = []
for each_line in files:
name_lmk_score = each_line.split()
faceness_scores.append(name_lmk_score[-1])
faceness_scores = np.array(faceness_scores).astype(np.float32)
stop = timeit.default_timer()
print('Time: %.2f s. ' % (stop - start))
print('Feature Shape: ({} , {}) .'.format(img_feats.shape[0], img_feats.shape[1]))
start = timeit.default_timer()
if use_flip_test:
img_input_feats = img_feats[:, 0:img_feats.shape[1] // 2] + img_feats[:, img_feats.shape[1] // 2:]
else:
img_input_feats = img_feats[:, 0:img_feats.shape[1] // 2]
if use_norm_score:
img_input_feats = img_input_feats
else:
img_input_feats = img_input_feats / np.sqrt(np.sum(img_input_feats ** 2, -1, keepdims=True))
if use_detector_score:
print(img_input_feats.shape, faceness_scores.shape)
img_input_feats = img_input_feats * faceness_scores[:, np.newaxis]
else:
img_input_feats = img_input_feats
template_norm_feats, unique_templates = image2template_feature(
img_input_feats, templates, medias)
stop = timeit.default_timer()
print('Time: %.2f s. ' % (stop - start))
start = timeit.default_timer()
score = verification(template_norm_feats, unique_templates, p1, p2)
stop = timeit.default_timer()
print('Time: %.2f s. ' % (stop - start))
save_path = os.path.join(args.result_dir, "{}_result".format(args.target))
if not os.path.exists(save_path):
os.makedirs(save_path)
score_save_file = os.path.join(save_path, "{}.npy".format(args.model_root))
np.save(score_save_file, score)
files = [score_save_file]
methods = []
scores = []
for file in files:
methods.append(os.path.basename(file))
scores.append(np.load(file))
methods = np.array(methods)
scores = dict(zip(methods, scores))
x_labels = [10 ** -6, 10 ** -5, 10 ** -4, 10 ** -3, 10 ** -2, 10 ** -1]
tpr_fpr_table = prettytable.PrettyTable(['Methods'] + [str(x) for x in x_labels])
for method in methods:
fpr, tpr, _ = roc_curve(label, scores[method])
fpr = np.flipud(fpr)
tpr = np.flipud(tpr)
tpr_fpr_row = []
tpr_fpr_row.append("%s-%s" % (method, args.target))
for fpr_iter in np.arange(len(x_labels)):
_, min_index = min(
list(zip(abs(fpr - x_labels[fpr_iter]), range(len(fpr)))))
tpr_fpr_row.append('%.2f' % (tpr[min_index] * 100))
tpr_fpr_table.add_row(tpr_fpr_row)
print(tpr_fpr_table)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='do ijb test')
# general
parser.add_argument('--model-root', default='', help='path to load model.')
parser.add_argument('--image-path', default='', type=str, help='')
parser.add_argument('--result-dir', default='.', type=str, help='')
parser.add_argument('--target', default='IJBC', type=str, help='target, set to IJBC or IJBB')
main(parser.parse_args())
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