def train(directory, filenames, buffer_size):
"""tf.data.Dataset object for rotated MNIST training data."""
images_file = 'train-images-idx3-ubyte'
labels_file = 'train-labels-idx1-ubyte'
tfrecords_filename = 'rot-mnist-conf-train-tf'
raw = 'rotmnist'
directory = os.path.join(directory, raw)
try:
os.makedirs(os.path.join(directory))
except OSError as e:
if e.errno == errno.EEXIST:
pass
else:
raise
fname = rotated_mnist2.process(directory,
images_file,
labels_file,
tfrecords_filename,
n_sub=50000,
c=25000,
train=True,
angles=(35, 55),
angles2=(-55, -35),
conf=True,
rot_dig=(1, 2, 3, 4, 5),
rot_dig2=(6, 7, 8, 9, 0))
ds = common.img_dataset(directory, filenames, 28, 28, 1, tf.uint8,
buffer_size)
return ds, fname
def test2(directory, filenames):
images_file = 't10k-images-idx3-ubyte'
labels_file = 't10k-labels-idx1-ubyte'
tfrecords_filename = 'rot-mnist-test2-tf'
raw = 'rotmnist'
directory = os.path.join(directory, raw)
try:
os.makedirs(os.path.join(directory))
except OSError as e:
if e.errno == errno.EEXIST:
pass
else:
raise
fname = process(directory,
images_file,
labels_file,
tfrecords_filename,
n_sub=10000,
c=0,
train=True)
ds = common.img_dataset(directory, filenames, 28, 28, 1, tf.uint8)
return ds, fname
def train(directory, filenames):
"""tf.data.Dataset object for rotated MNIST training data."""
images_file = 'train-images-idx3-ubyte'
labels_file = 'train-labels-idx1-ubyte'
tfrecords_filename = 'rot-mnist-train-tf'
raw = 'rotmnist'
directory = os.path.join(directory, raw)
try:
os.makedirs(os.path.join(directory))
except OSError as e:
if e.errno == errno.EEXIST:
pass
else:
raise
fname = process(directory,
images_file,
labels_file,
tfrecords_filename,
n_sub=10000,
c=200,
train=True)
ds = common.img_dataset(directory, filenames, 28, 28, 1, tf.uint8)
return ds, fname
def test3(directory, filenames, buffer_size):
images_file = 't10k-images-idx3-ubyte'
labels_file = 't10k-labels-idx1-ubyte'
tfrecords_filename = 'rot-mnist-conf-test3-tf'
raw = 'rotmnist'
directory = os.path.join(directory, raw)
try:
os.makedirs(os.path.join(directory))
except OSError as e:
if e.errno == errno.EEXIST:
pass
else:
raise
fname = rotated_mnist2.process(directory,
images_file,
labels_file,
tfrecords_filename,
n_sub=10000,
c=0,
train=False,
angles=(-55, -35))
ds = common.img_dataset(directory, filenames, 28, 28, 1, tf.uint8,
buffer_size)
return ds, fname
