def transform(zip_file, save_dir=None):
"""Refactor file directories, rename images and partition the train/val/test
set.
"""
train_test_split_file = osp.join(save_dir, 'train_test_split.pkl')
train_test_split = save_images(zip_file, save_dir, train_test_split_file)
# train_test_split = load_pickle(train_test_split_file)
# partition train/val/test set
trainval_ids = list(
set([
parse_new_im_name(n, 'id')
for n in train_test_split['trainval_im_names']
]))
# Sort ids, so that id-to-label mapping remains the same when running
# the code on different machines.
trainval_ids.sort()
trainval_ids2labels = dict(zip(trainval_ids, range(len(trainval_ids))))
partitions = partition_train_val_set(train_test_split['trainval_im_names'],
parse_new_im_name,
num_val_ids=100)
train_im_names = partitions['train_im_names']
train_ids = list(
set([parse_new_im_name(n, 'id')
for n in partitions['train_im_names']]))
# Sort ids, so that id-to-label mapping remains the same when running
# the code on different machines.
train_ids.sort()
train_ids2labels = dict(zip(train_ids, range(len(train_ids))))
# A mark is used to denote whether the image is from
# query (mark == 0), or
# gallery (mark == 1), or
# multi query (mark == 2) set
val_marks = [0, ] * len(partitions['val_query_im_names']) \
+ [1, ] * len(partitions['val_gallery_im_names'])
val_im_names = list(partitions['val_query_im_names']) \
+ list(partitions['val_gallery_im_names'])
test_im_names = list(train_test_split['q_im_names']) \
+ list(train_test_split['gallery_im_names'])
test_marks = [0, ] * len(train_test_split['q_im_names']) \
+ [1, ] * len(train_test_split['gallery_im_names'])
partitions = {
'trainval_im_names': train_test_split['trainval_im_names'],
'trainval_ids2labels': trainval_ids2labels,
'train_im_names': train_im_names,
'train_ids2labels': train_ids2labels,
'val_im_names': val_im_names,
'val_marks': val_marks,
'test_im_names': test_im_names,
'test_marks': test_marks
}
partition_file = osp.join(save_dir, 'partitions.pkl')
save_pickle(partitions, partition_file)
print('Partition file saved to {}'.format(partition_file))
def transform(zip_file, save_dir=None):
"""Refactor file directories, rename images and partition the train/val/test
set.
"""
train_test_split_file = osp.join(save_dir, 'train_test_split.pkl')
train_test_split = save_images(zip_file, save_dir, train_test_split_file)
# train_test_split = load_pickle(train_test_split_file)
# partition train/val/test set
trainval_ids = list(set([parse_new_im_name(n, 'id')
for n in train_test_split['trainval_im_names']]))
# Sort ids, so that id-to-label mapping remains the same when running
# the code on different machines.
trainval_ids.sort()
trainval_ids2labels = dict(zip(trainval_ids, range(len(trainval_ids))))
partitions = partition_train_val_set(
train_test_split['trainval_im_names'], parse_new_im_name, num_val_ids=100)
train_im_names = partitions['train_im_names']
train_ids = list(set([parse_new_im_name(n, 'id')
for n in partitions['train_im_names']]))
# Sort ids, so that id-to-label mapping remains the same when running
# the code on different machines.
train_ids.sort()
train_ids2labels = dict(zip(train_ids, range(len(train_ids))))
# A mark is used to denote whether the image is from
# query (mark == 0), or
# gallery (mark == 1), or
# multi query (mark == 2) set
val_marks = [0, ] * len(partitions['val_query_im_names']) \
+ [1, ] * len(partitions['val_gallery_im_names'])
val_im_names = list(partitions['val_query_im_names']) \
+ list(partitions['val_gallery_im_names'])
test_im_names = list(train_test_split['q_im_names']) \
+ list(train_test_split['mq_im_names']) \
+ list(train_test_split['gallery_im_names'])
test_marks = [0, ] * len(train_test_split['q_im_names']) \
+ [2, ] * len(train_test_split['mq_im_names']) \
+ [1, ] * len(train_test_split['gallery_im_names'])
partitions = {'trainval_im_names': train_test_split['trainval_im_names'],
'trainval_ids2labels': trainval_ids2labels,
'train_im_names': train_im_names,
'train_ids2labels': train_ids2labels,
'val_im_names': val_im_names,
'val_marks': val_marks,
'test_im_names': test_im_names,
'test_marks': test_marks}
partition_file = osp.join(save_dir, 'partitions.pkl')
save_pickle(partitions, partition_file)
print('Partition file saved to {}'.format(partition_file))