def testDivisibleBy(self):
tf.reset_default_graph()
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 16)),
conv_defs=mobilenet_v2.V2_DEF,
divisible_by=16,
min_depth=32)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
self.assertSameElements([32, 64, 96, 160, 192, 320, 384, 576, 960, 1280,
1001], s)
def testDivisibleBy(self):
tf.reset_default_graph()
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 16)),
conv_defs=mobilenet_v2.V2_DEF,
divisible_by=16,
min_depth=32)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
self.assertSameElements([32, 64, 96, 160, 192, 320, 384, 576, 960, 1280,
1001], s)
def testDivisibleByWithArgScope(self):
tf.reset_default_graph()
# Verifies that depth_multiplier arg scope actually works
# if no default min_depth is provided.
with slim.arg_scope((mobilenet.depth_multiplier,), min_depth=32):
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 2)),
conv_defs=mobilenet_v2.V2_DEF, depth_multiplier=0.1)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
self.assertSameElements(s, [32, 192, 128, 1001])
def testDivisibleByWithArgScope(self):
tf.reset_default_graph()
# Verifies that depth_multiplier arg scope actually works
# if no default min_depth is provided.
with slim.arg_scope((mobilenet.depth_multiplier,), min_depth=32):
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 2)),
conv_defs=mobilenet_v2.V2_DEF, depth_multiplier=0.1)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
self.assertSameElements(s, [32, 192, 128, 1001])
def testFineGrained(self):
tf.reset_default_graph()
# Verifies that depth_multiplier arg scope actually works
# if no default min_depth is provided.
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 2)),
conv_defs=mobilenet_v2.V2_DEF, depth_multiplier=0.01,
finegrain_classification_mode=True)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
# All convolutions will be 8->48, except for the last one.
self.assertSameElements(s, [8, 48, 1001, 1280])
def testFineGrained(self):
tf.reset_default_graph()
# Verifies that depth_multiplier arg scope actually works
# if no default min_depth is provided.
mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, 224, 224, 2)),
conv_defs=mobilenet_v2.V2_DEF, depth_multiplier=0.01,
finegrain_classification_mode=True)
s = [op.outputs[0].get_shape().as_list()[-1] for op in find_ops('Conv2D')]
s = set(s)
# All convolutions will be 8->48, except for the last one.
self.assertSameElements(s, [8, 48, 1001, 1280])
def __init__(self, checkpoint='../mobilenet_v2_1.0_224.ckpt'):
# save the checkpoint
self.checkpoint = checkpoint
tf.reset_default_graph()
# placeholder for the image input, need to decode the file
self.file_in = tf.placeholder(tf.string, ())
image = tf.image.decode_jpeg(tf.read_file(self.file_in))
# expand for batch then cast to between -1 and 1
inputs = tf.expand_dims(image, 0)
inputs = (tf.cast(inputs, tf.float32) / 128) - 1
# ensure that it only has three dimensions and resize to 224x224
inputs.set_shape((None, None, None, 3))
inputs = tf.image.resize_images(inputs, (224, 224))
# get the endpoints of the network
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
_, self.endpoints = mobilenet_v2.mobilenet(inputs)
# Restore using exponential moving average since it produces (1.5-2%) higher
# accuracy
ema = tf.train.ExponentialMovingAverage(0.999)
vars = ema.variables_to_restore()
saver = tf.train.Saver(vars)
# create the label map from imagenet, same thing
self.label_map = imagenet.create_readable_names_for_imagenet_labels()
# create session and restore the checkpoint downloaded
self.sess = tf.Session()
saver.restore(self.sess, self.checkpoint)
def load_mobilenet_v2(model_dir, sess):
model_url = "https://storage.googleapis.com/mobilenet_v2/checkpoints/mobilenet_v2_1.4_224.tgz"
filename = model_url.split("/")[-1]
filepath = os.path.join(model_dir, filename.split(".tgz")[0])
try:
utils.download_pretrained_model_weights(model_url,
filepath,
unzip=True)
except:
print("Pre-training weights download failed!")
model_file_name = "mobilenet_v2_1.4_224.ckpt"
model_path = os.path.join(filepath, model_file_name)
resized_input_tensor = tf.placeholder(tf.float32,
shape=[None, None, None, 3])
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope()):
bottleneck_tensor, _ = mobilenet_v2.mobilenet(resized_input_tensor,
num_classes=None,
depth_multiplier=1.4)
variable_restore_op = tf.contrib.slim.assign_from_checkpoint_fn(
model_path,
tf.contrib.slim.get_trainable_variables(),
ignore_missing_vars=True)
variable_restore_op(sess)
# bottleneck_tensor = tf.squeeze(bottleneck_tensor, axis=[1, 2])
bottleneck_tensor_size = 1792
return bottleneck_tensor, resized_input_tensor, bottleneck_tensor_size
def net(image, classes):
#encoding - convolution/pooling
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=True)):
logits, endpoints = mobilenet_v2.mobilenet(image, num_classes=None)
logits = endpoints["layer_10/output"]
print(logits.get_shape())
#new_size = (16,32)
#resize = tf.image.resize(logits, new_size, align_corners=True)
#conv = util.conv(resize, [3,3,512,320], "up_1", pad="SAME")
#new_size = (64,128)
#resize = tf.image.resize(logits, new_size, align_corners=True)
#conv = util.conv(resize, [3,3,256,512], "up_2", pad="SAME")
new_size = (192,256)
resize = tf.image.resize(logits, new_size, align_corners=True)
conv = util.conv(resize, [3,3,128,256], "up_3", pad="SAME")
conv6 = util.conv(conv, [1,1,128,classes], "c6", pad="SAME")
softmax = tf.nn.softmax(conv6)
return conv6, tf.argmax(softmax, axis=3), softmax
def create_inference_graph(self, input_image, base_graph):
util.download(self.params.CHECKPOINT_TARBALL_URI, self.params.MODEL_BASEDIR)
self.graph = base_graph
with self.graph.as_default():
input_image = tf.cast(input_image, tf.float32) / 128. - 1
input_image.set_shape(self.params.INPUT_TENSOR_SHAPE)
from nets.mobilenet import mobilenet_v2
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):
# See also e.g. mobilenet_v2_035
self.logits, self.endpoints = mobilenet_v2.mobilenet(
input_image,
is_training=False,
depth_multiplier=self.params.DEPTH_MULTIPLIER,
finegrain_classification_mode=self.params.FINE)
# Per authors: Restore using exponential moving average since it produces
# (1.5-2%) higher accuracy
ema = tf.train.ExponentialMovingAverage(0.999)
vs = ema.variables_to_restore()
saver = tf.train.Saver(vs)
checkpoint = os.path.join(
self.params.MODEL_BASEDIR,
self.params.CHECKPOINT + '.ckpt')
nodes = list(self.output_names) + [input_image]
self.graph = util.give_me_frozen_graph(
checkpoint,
nodes=self.output_names,
base_graph=self.graph,
saver=saver)
return self.graph
def _build_model(self, inputs, is_training=True):
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=is_training)):
logits, endpoints = mobilenet_v2.mobilenet(inputs, num_classes=self.config.num_outputs)
ema = tf.train.ExponentialMovingAverage(0.999)
self.mobile_net_vars = [var for var in tf.trainable_variables() if var.name.startswith("Mobilenet") and
"Logits" not in var.name]
return logits, endpoints
def __call__(self, inputs, castFromUint8=True):
pr_shape = lambda var : print(var.shape)
if castFromUint8:
inputs = tf.cast(inputs, self.dtype)
# print(inputs.dtype)
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(
is_training=self.is_training)):
# print(inputs.dtype)
global_pool, endpoints = mobilenet_v2.mobilenet(inputs, num_classes=None)
self.variables_to_restore = slim.get_variables() # len 260
# 后加两层fc
dropout_keep_prob = 0.5
weight_decay = 0.05
with tf.variable_scope('additional', 'fc'):
# flatten = tf.flatten(endpoints['global_pool'])
flatten = slim.flatten(global_pool)
with slim.arg_scope([slim.fully_connected],
weights_regularizer=slim.l2_regularizer(weight_decay),
weights_initializer = tc.layers.xavier_initializer(tf.float32),
# weights_initializer=tf.truncated_normal_initializer(stddev=0.1),
activation_fn=None) as sc:
net = slim.fully_connected(flatten, 128, activation_fn=None, scope='fc1')
net = slim.dropout(net, dropout_keep_prob, is_training=self.is_training, scope='dropout')
logits = slim.fully_connected(net, self.n_classes, activation_fn=None, scope='fc2')
# 多出来的4个参数保存 共264
self.variables_to_save = slim.get_variables()
for var in self.variables_to_save:
if var in self.variables_to_restore:
continue
self.variables_to_train.append(var)
# pr_shape(out)
return logits
def mobilenet_v2_100(inputs, is_training, opts):
if is_training:
with slim.arg_scope(mobilenet_v2.training_scope(
weight_decay=opts.weight_decay,
stddev=0.09,
bn_decay=opts.batch_norm_decay)):
return mobilenet_v2.mobilenet(
inputs,
num_classes=opts.num_classes,
depth_multiplier=1.0,
reuse=None)
else:
return mobilenet_v2.mobilenet(
inputs,
num_classes=opts.num_classes,
depth_multiplier=1.0,
reuse=None)
def Encoder_mobilenet(x, is_training=True, weight_decay=0.001, reuse=False):
# from nets.mobilenet import mobilenet_v2
from nets.mobilenet import mobilenet_v2
with slim.arg_scope(mobilenet_v2.training_scope()):
net, endpoints = mobilenet_v2.mobilenet(x)
variables = tf.contrib.framework.get_variables('mobilenet_v2')
return net, variables
def testImageSizes(self):
for input_size, output_size in [(224, 7), (192, 6), (160, 5),
(128, 4), (96, 3)]:
tf.reset_default_graph()
_, ep = mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, input_size, input_size, 3)))
self.assertEqual(ep['layer_18/output'].get_shape().as_list()[1:3],
[output_size] * 2)
def testImageSizes(self):
for input_size, output_size in [(224, 7), (192, 6), (160, 5),
(128, 4), (96, 3)]:
tf.reset_default_graph()
_, ep = mobilenet_v2.mobilenet(
tf.placeholder(tf.float32, (10, input_size, input_size, 3)))
self.assertEqual(ep['layer_18/output'].get_shape().as_list()[1:3],
[output_size] * 2)
def test_model_from_img(img_path):
img_list = read_img(img_path)
# placeholder holds an input tensor for classification
input_images = tf.placeholder(dtype=tf.float32, shape=[None, R.resize_height, R.resize_width, R.depths],
name='input')
out, end_points = mobilenet_v2.mobilenet(input_tensor=input_images, num_classes=R.num_classes,
depth_multiplier=R.depth_multiplier, is_training=False)
saver = tf.train.Saver()
with tf.Session() as sess:
# restore variables that have been trained.
saver.restore(sess, R.CKPT)
label = str()
for s in R.labelsStr:
label += s + ' '
print(label)
acc = 0
for img_name in img_list:
dirname, filename = os.path.split(img_name)
dirname = dirname.split(os.sep)[-1]
img_raw_data = tf.gfile.FastGFile(img_name, 'rb').read()
img_data = tf.image.decode_jpeg(img_raw_data)
# img_data = tf.image.per_image_standardization(img_data)
img_data = tf.image.convert_image_dtype(img_data, dtype=tf.float32)
# elements are in [0,1)
resized_img = tf.image.resize_images(img_data, size=[R.resize_height, R.resize_width], method=0)
# decode an image
img = resized_img.eval(session=sess)
img.resize([1, R.resize_height, R.resize_width, R.depths])
# input an image array and inference to get predictions and set normal format
predictions = end_points['Predictions'].eval(session=sess, feed_dict={input_images: img})
predictions.resize([R.num_classes])
np.set_printoptions(precision=4, suppress=True)
index = np.argmax(predictions)
print('Predict[{: ^7s}] is {}.'.format(dirname, str(predictions)))
if R.labelsDict[dirname] == index:
acc += 1
else:
print(" --- Wrong: Mistake " + dirname + " for " + R.labelsStr[index])
# wrong[dirname] = value
print("The accuracy of this test is {:.3f} - {}/{}".format(acc/len(img_list), acc, len(img_list)))
'''
for key, val in wrong.items():
img = cv2.imread(key, 0)
cv2.imshow(val, img)
k = cv2.waitKey(0)
if k == 27: # wait for ESC key to exit
cv2.destroyAllWindows()
break
cv2.destroyAllWindows()
'''
print('Bye.')
def train_kfold(record_file, train_log_step, train_param, val_log_step,
num_classes, data_shape, snapshot, snapshot_prefix):
[base_lr, max_steps] = train_param
[batch_size, resize_height, resize_width, depths] = data_shape
# ============================================================================================================
# Define the model: [core]
with slim.arg_scope(
mobilenet_v2.training_scope(dropout_keep_prob=R.dropout)):
out, end_points = mobilenet_v2.mobilenet(
input_tensor=input_images,
num_classes=num_classes,
depth_multiplier=R.depth_multiplier,
is_training=is_training)
# Specify the loss function: tf.losses定义的loss函数都会自动添加到loss函数, 无需 # slim.losses.add_loss(my_loss)
tf.losses.softmax_cross_entropy(onehot_labels=input_labels,
logits=out) # 添加交叉熵损失loss=1.6
loss = tf.losses.get_total_loss(
add_regularization_losses=True) # 添加正则化损失loss=2.2
accuracy = tf.reduce_mean(
tf.cast(tf.equal(tf.argmax(out, 1), tf.argmax(input_labels, 1)),
tf.float32))
# Specify the optimization scheme:
optimizer = tf.train.GradientDescentOptimizer(learning_rate=base_lr)
'''
global_step = tf.Variable(0, trainable=False)
learning_rate = tf.train.exponential_decay(0.05, global_step, 150, 0.9)
optimizer = tf.train.MomentumOptimizer(learning_rate, 0.9)
train_tensor = optimizer.minimize(loss, global_step)
train_op = slim.learning.create_train_op(loss, optimizer, global_step=global_step)
'''
# 在定义训练的时�? 注意到我们使用了`batch_norm`层时,需要更新每一层的`average`和`variance`参数,
# 更新的过程不包含在正常的训练过程�? 需要我们去手动像下面这样更�? # 通过`tf.get_collection`获得所有需要更新的`op`
# update_ops = tf.get_collection(tf.GraphKeys.UPDATE_OPS)
# 使用`tensorflow`的控制流, 先执行更新算�? 再执行训�?
# with tf.control_dependencies(update_ops):
# create_train_op that ensures that when we evaluate it to get the loss,
# the update_ops are done and the gradient updates are computed.
train_op = slim.learning.create_train_op(total_loss=loss,
optimizer=optimizer)
# ================================================================================================================
# 从record中读取图片和labels数据
all_nums = get_example_nums(record_file)
all_images, all_labels = read_records(record_file,
resize_height,
resize_width,
type='normalization',
is_train=None)
all_images_batch, all_labels_batch = get_batch_images(
all_images,
all_labels,
batch_size=batch_size,
labels_nums=num_classes,
one_hot=True,
shuffle=True)
def inspect_module():
features = tf.zeros([8, 224, 224, 3], name='input')
with tf.variable_scope('TestSSD',
default_name=None,
values=[features],
reuse=tf.AUTO_REUSE):
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(features)
for key in endpoints:
print(key, endpoints[key])
def encode(self, input_tensor, name):
"""
根据MobileNet框架对输入的tensor进行编码
:param input_tensor:
:param name:
:param flags:
:return: 输出MobileNet编码特征
"""
ret = OrderedDict()
with tf.variable_scope(name):
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=True)):
net, end_points = mobilenet_v2.mobilenet(input_tensor,
base_only=True)
# # Version B
# ret['layer_5'] = dict()
# ret['layer_5']['data'] = end_points['layer_5']
# ret['layer_5']['shape'] = end_points['layer_5'].get_shape().as_list()
#
#
# ret['layer_8'] = dict()
# ret['layer_8']['data'] = end_points['layer_8']
# ret['layer_8']['shape'] = end_points['layer_8'].get_shape().as_list()
#
#
# ret['layer_18'] = dict()
# ret['layer_18']['data'] = end_points['layer_18']
# ret['layer_18']['shape'] = end_points['layer_18'].get_shape().as_list()
# Version A
ret['layer_7'] = dict()
ret['layer_7']['data'] = end_points['layer_7']
ret['layer_7']['shape'] = end_points['layer_7'].get_shape(
).as_list()
ret['layer_14'] = dict()
ret['layer_14']['data'] = end_points['layer_14']
ret['layer_14']['shape'] = end_points['layer_14'].get_shape(
).as_list()
ret['layer_19'] = dict()
ret['layer_19']['data'] = end_points['layer_19']
ret['layer_19']['shape'] = end_points['layer_19'].get_shape(
).as_list()
# ret['end_points'] = end_points
return ret
def endpoints(image, is_training):
if image.get_shape().ndims != 4:
raise ValueError('Input must be of size [batch, height, width, 3]')
image = tf.divide(image, 255.0)
with tf.contrib.slim.arg_scope(
training_scope(bn_decay=0.9, weight_decay=0.0)):
_, endpoints = mobilenet(image,
num_classes=1001,
is_training=is_training)
endpoints['model_output'] = endpoints['global_pool'] = tf.reduce_mean(
endpoints['layer_14'], [1, 2], name='global_pool', keep_dims=False)
return endpoints, 'MobilenetV2'
def compare_layer_output(net, layer_name, checkpoint, tensor_name, image_file):
### Compare outputs from the same layer (tensor)
### from caffe net and tensorflow graph
### matching name examples:
## tf: MobilenetV2/Conv/Conv2D:0, MobilenetV2/Conv/Relu6:0, MobilenetV2/Conv/BatchNorm/FusedBatchNorm:0
## caffe: conv1, conv1/relu, conv1/scale
def square_error(x, x_):
return np.sum(np.square(x - x_))
image = tf_preprocess(image_file)
## caffe inference
net.blobs['data'].data[...] = image[...]
net.forward()
caffe_output = net.blobs[layer_name].data
caffe_output = caffe_output.transpose(0, 2, 3, 1) # channel first to last
## tf inference
tf.reset_default_graph()
images = tf.placeholder(tf.float32,
shape=(None, image_scale, image_scale, 3))
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(images, num_classes=1001)
ema = tf.train.ExponentialMovingAverage(0.999)
vars = ema.variables_to_restore()
saver = tf.train.Saver(vars)
with tf.Session() as sess:
saver.restore(sess, checkpoint)
tensor = sess.graph.get_tensor_by_name(tensor_name)
tf_output = sess.run(tensor, feed_dict={images: image})
### compare tf and caffe result of a specific layer
### need graphs and layer (tensor) name in caffe and tf
print('...................................')
error = 0
for i in range(32):
err = square_error(tf_output[0, :, :, i], caffe_output[0, :, :, i])
print('channel', i, err)
error += err
print('total error:', error)
print('...................................')
return
def mobilenet(images,
depth_multiplier=1.0,
is_training=True,
verbose=False,
**kwargs):
""" Base MobileNet architecture
Based on https://github.com/tensorflow/models/tree/master/research/slim/nets/mobilenet
Args:
images: input images in [0., 1.]
depth_multiplier: MobileNet depth multiplier.
is_training: training bool for batch norm
verbose: verbosity level
Kwargs:
weight_decay: Regularization constant. Defaults to 0.
normalizer_decay: Batch norm decay. Defaults to 0.9
"""
del kwargs
base_scope = tf.get_variable_scope().name
# Input in [0., 1.] -> [-1, 1]
with tf.control_dependencies([tf.assert_greater_equal(images, 0.)]):
with tf.control_dependencies([tf.assert_less_equal(images, 1.)]):
net = (images - 0.5) * 2.
# Mobilenet
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=is_training)):
if depth_multiplier == 1.0:
net, _ = mobilenet_v2.mobilenet(net, base_only=True)
elif depth_multiplier == 0.5:
net, _ = mobilenet_v2.mobilenet_v2_050(net, base_only=True)
elif depth_multiplier == 0.35:
net, _ = mobilenet_v2.mobilenet_v2_035(net, base_only=True)
# Add a saver to restore Imagenet-pretrained weights
saver_collection = '%s_mobilenet_%s_saver' % (base_scope, depth_multiplier)
savers = tf.get_collection(saver_collection)
if len(savers) == 0:
var_list = {
x.op.name.replace('%s/' % base_scope, ''): x
for x in tf.global_variables(scope=base_scope)
}
saver = tf.train.Saver(var_list=var_list)
tf.add_to_collection(saver_collection, saver)
return net
def getMobileNet(checkpoint):
graph = tf.Graph()
sess = tf.Session(graph=graph)
with graph.as_default():
file_input = tf.placeholder(tf.string, ())
image = tf.image.decode_image(tf.read_file(file_input))
images = tf.expand_dims(image, 0)
images = tf.cast(images, tf.float32) / 128. - 1
images.set_shape((None, None, None, 3))
images = tf.image.resize_images(images, (224, 224))
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(images)
ema = tf.train.ExponentialMovingAverage(0.999)
vars = ema.variables_to_restore()
saver = tf.train.Saver(vars)
saver.restore(sess, checkpoint)
return sess, graph, endpoints, file_input
def mobilenet_v2(inputs,
num_classes,
depth_multiplier=1.0,
finegrain_classification_mode=True,
padding='SAME',
flag_global_pool=True):
"""mobilenet_v2 model"""
logits, endpoints = mobilenet_v2_builder.mobilenet(
inputs,
num_classes=num_classes,
depth_multiplier=depth_multiplier,
finegrain_classification_mode=finegrain_classification_mode,
padding=padding,
flag_global_pool=flag_global_pool,
)
endpoints['output'] = logits
print(logits.shape)
return logits, endpoints
def load_mobilenet_v2(model_dir, sess):
model_file_name = "mobilenet_v2_1.4_224/mobilenet_v2_1.4_224.ckpt"
model_path = os.path.join(model_dir, model_file_name)
resized_input_tensor = tf.placeholder(tf.float32, shape=[None, None, None, 3])
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope()):
bottleneck_tensor, _ = mobilenet_v2.mobilenet(
resized_input_tensor, num_classes=None, depth_multiplier=1.4)
variable_restore_op = tf.contrib.slim.assign_from_checkpoint_fn(
model_path,
tf.contrib.slim.get_trainable_variables(),
ignore_missing_vars=True)
variable_restore_op(sess)
#bottleneck_tensor = tf.squeeze(bottleneck_tensor, axis=[1, 2])
bottleneck_tensor_size = 1792
return bottleneck_tensor, resized_input_tensor, bottleneck_tensor_size
def fcn_mobv2(images, num_classes, is_training=True):
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope()):
_, end_points = mobilenet_v2.mobilenet(images, num_classes)
for v, k in end_points.items():
print('{v}:{k}'.format(v=v, k=k))
# pool4=end_points['resnet_v1_101/pool4']
#
# dconv1_out=pool4.get_shape().as_list()
#
#
# deconv1=slim.conv2d_transpose(net,dconv1_out[3],[4,4], stride=2,scope='deconv1')
#
# fu1=tf.add(deconv1,pool4)
#
#
# pool3=end_points['resnet_v1_101/pool3']
# dconv2_out=pool3.get_shape().as_list()
# deconv2=slim.conv2d_transpose(fu1,dconv2_out[3],[4,4], stride=2,scope='deconv2')
#
# fu2=tf.add(deconv2,pool3)
net = end_points['layer_18']
# net_14=end_points['Conv2d_11_pointwise']
# net_28=end_points['Conv2d_5_pointwise']
# up1=slim.conv2d_transpose(net_7,2,[4,4], stride=2,scope='deconv32')
# fu1=tf.add(up1,net_14,name='fu1')
#
# up2=slim.conv2d_transpose(fu1,2,[4,4], stride=2,scope='deconv16')
# fu2=tf.add(up2,net_28,name='fu2')
logit = slim.conv2d_transpose(net,
2, [64, 64],
stride=32,
scope='deconv8')
prediction = tf.argmax(logit, dimension=3) #, name="prediction")
print('logit', logit)
return logit, tf.expand_dims(prediction, axis=3)
def _get_endpoints(model_name, img_tensor):
if model_name == "res50":
with slim.arg_scope(resnet_v1.resnet_arg_scope()):
_, end_points = resnet_v1.resnet_v1_50(img_tensor,
1000,
is_training=False)
return end_points["predictions"]
elif model_name == "res152":
with slim.arg_scope(resnet_v1.resnet_arg_scope()):
_, end_points = resnet_v1.resnet_v1_152(img_tensor,
1000,
is_training=False)
return end_points["predictions"]
elif model_name.startswith("mobilenet"):
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
_, endpoints = mobilenet_v2.mobilenet(img_tensor)
return endpoints["Predictions"]
def main(argv=None):
with tf.gfile.Open(FLAGS.labels) as f:
labels = [line.strip() for line in f.readlines()]
labels_str = tf.constant(list(','.join(labels).encode()),
dtype=tf.int32,
name='labels')
placeholder = tf.placeholder(tf.float32, shape=(None, 96, 96, 3))
logits, _ = mobilenet_v2.mobilenet(placeholder, len(labels))
saver = tf.train.Saver()
with tf.Session() as sess:
saver.restore(sess, FLAGS.checkpoint_path)
tf.saved_model.simple_save(sess,
FLAGS.export_dir,
inputs={'placeholder': placeholder},
outputs={
'labels': labels_str,
'output': logits
})
#1.2、先构建图结构，再加载权重
#临时添加slim到python搜索路径
import sys
sys.path.append('./models/research/slim')
#导入mobilenet_v2
from nets.mobilenet import mobilenet_v2
#重置图
tf.reset_default_graph()
#导入mobilenet，先构建图结构
#加载完毕后，tf.get_default_graph()中包含了mobilenet计算图结构，可以使用tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES)对比reset_graph前后的差异
images = tf.placeholder(tf.float32,(None, 224, 224, 3))
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training = False)):
logits, endpoints = mobilenet_v2.mobilenet(images, depth_multiplier = 1.4)
#定义saver类，用于恢复图权重
saver = tf.train.Saver()
with tf.Session() as sess:
#latest_checkpoint检查checkpoint检查点文件，查找最新的模型
#restore恢复图权重
saver.restore(sess, tf.train.latest_checkpoint('./model_ckpt/moilenet_v2'))
#get_tensor_by_name通过张量名称获取张量
print(sess.run(tf.get_default_graph().get_tensor_by_name('MoilenetV2/Conv/weights:0')).shape)
#1.3、frozen inference
"""
pb文件将变量取值和计算图整个结构统一放在一个文件中，通过convert_variable_to_constants
将变量及取值转化为常量保存，在模型测试的时候，输入只需要经过前向传播至输出层就可以。
# For simplicity we just decode jpeg inside tensorflow.
# But one can provide any input obviously.
file_input = tf.placeholder(tf.string, ())
image = tf.image.decode_jpeg(tf.read_file(file_input))
images = tf.expand_dims(image, 0)
images = tf.cast(images, tf.float32) / 128. - 1
images.set_shape((None, None, None, 3))
images = tf.image.resize_images(images, (224, 224))
# images = tf.placeholder(tf.float32, (None, 224, 224, 3))
# Note: arg_scope is optional for inference.
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(images)
# Restore using exponential moving average since it produces (1.5-2%) higher
# accuracy
ema = tf.train.ExponentialMovingAverage(0.999)
vars = ema.variables_to_restore()
saver = tf.train.Saver(vars)
from datasets import imagenet
with tf.Session() as sess:
saver.restore(sess, checkpoint)
x = endpoints['Predictions'].eval(feed_dict={file_input: 'imgs/dog.jpg'})
# writer = tf.summary.FileWriter("TensorBoard/", graph=sess.graph)
# writer.close()
def caffe_load_from_ckpt(prototxt, checkpoint, to_caffemodel):
### load caffe model and weights
caffe.set_mode_gpu()
net = caffe.Net(prototxt, caffe.TEST)
### load tf model
tf.reset_default_graph()
images = tf.placeholder(tf.float32,
shape=(None, image_scale, image_scale, 3))
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(
images,
num_classes=1001,
depth_multiplier=factor,
finegrain_classification_mode=True)
ema = tf.train.ExponentialMovingAverage(0.999)
vars = ema.variables_to_restore()
saver = tf.train.Saver(vars)
### convert variables from tf checkpoints to caffemodel
with tf.Session() as sess:
saver.restore(sess, checkpoint)
tf_all_vars = tf.get_collection(tf.GraphKeys.GLOBAL_VARIABLES)
# for i, var in enumerate(tf_all_vars):
# print(i, var.name, var.shape.as_list())
print(
'------------------------------------------------------------------'
)
i = 0 # index
for caffe_var_name in net.params.keys():
for n in range(len(net.params[caffe_var_name])):
if list(net.params[caffe_var_name][n].data.shape) != [1]:
var = tf_all_vars[i]
print(i, caffe_var_name,
net.params[caffe_var_name][n].data.shape, var.name,
var.shape.as_list())
i += 1
# exit()
""" tf name scope:
convolutional layer:
"MobilenetV2/....../...weights:0"
"MobilenetV2/....../BatchNorm/gamma:0"
"MobilenetV2/....../BatchNorm/beta:0"
"MobilenetV2/....../BatchNorm/moving_mean:0"
"MobilenetV2/....../BatchNorm/moving_variance:0"
fully connected layer:
"MobilenetV2/....../...weights:0"
"MobilenetV2/....../biases:0"
"""
# name, shape list
# caffe_var: caffe_var_name, list(net.params[caffe_var_name][n].data.shape)
# tf_var : tf_var.name, tf_var.shape.as_list()
### 262 variables to convert from tf.ckpt to caffemodel
i = 0 # index
for caffe_var_name in net.params.keys():
for n in range(len(net.params[caffe_var_name])):
if list(net.params[caffe_var_name][n].data.shape) != [1]:
### Compare caffe_var and tf_var here
# caffe_var_name = caffe_var_name
caffe_var_data = net.params[caffe_var_name][n].data
caffe_var_shape = list(caffe_var_data.shape)
tf_var_name = tf_all_vars[i].name
tf_var_shape = tf_all_vars[i].shape.as_list()
if 'weights:0' in tf_var_name:
### weight layer
# print(caffe_var_name, caffe_var_shape, '|||||||||||', tf_var_name, tf_var_shape)
tf_var_data = sess.run(tf_all_vars[i])
### swap tf_var axis for caffe_var:
### tf_var shape: (height, width, channel_out, channel_in) for depthwise_weights
### (height, width, channel_in, channel_out) for other weights
### caffe_var shape: (channel_out, channel_in, height, width)
tf_var_data = np.transpose(tf_var_data,
axes=(3, 2, 0, 1))
if '/depthwise_weights' in tf_var_name:
tf_var_data = np.swapaxes(tf_var_data,
axis1=0,
axis2=1)
if 'Logits/' in tf_var_name:
### mismatched num_classes
### tf class 0: 'background'
caffe_var_data[:, ...] = tf_var_data[1:, ...]
else:
caffe_var_data[...] = tf_var_data[...]
if 'biases:0' in tf_var_name:
### bias layer
# print(caffe_var_name, caffe_var_shape, '|||||||||||', tf_var_name, tf_var_shape)
### tf_var_shape: (1001,)
### caffe_var_shape: (1000,)
tf_var_data = sess.run(tf_all_vars[i])
caffe_var_data[:] = tf_var_data[1:]
if 'BatchNorm/gamma:0' in tf_var_name:
### batchnorm scaling layer, but convert mean
# print(caffe_var_name, n, caffe_var_shape, '|||||||||||', tf_all_vars[i+2].name, tf_all_vars[i+2].shape.as_list())
### tf_var_shape: (channel,)
### caffe_var_shape: (channel,)
tf_var_data = sess.run(tf_all_vars[i + 2])
caffe_var_data[...] = tf_var_data[...]
if 'BatchNorm/beta:0' in tf_var_name:
### batchnorm scaling layer, but convert variance
# print(caffe_var_name, n, caffe_var_shape, '|||||||||||', tf_all_vars[i+2].name, tf_all_vars[i+2].shape.as_list())
### tf_var_shape: (channel,)
### caffe_var_shape: (channel,)
tf_var_data = sess.run(tf_all_vars[i + 2])
caffe_var_data[...] = tf_var_data[...] # + 1e-3 -1e-5
if 'BatchNorm/moving_mean:0' in tf_var_name:
### batchnorm moving average layer, but convert gamme
# print(caffe_var_name, n, caffe_var_shape, '|||||||||||', tf_all_vars[i-2].name, tf_all_vars[i-2].shape.as_list())
### tf_var_shape: (channel,)
### caffe_var_shape: (channel,)
tf_var_data = sess.run(tf_all_vars[i - 2])
caffe_var_data[...] = tf_var_data[...]
if 'BatchNorm/moving_variance:0' in tf_var_name:
### batchnorm moving average layer, but convert beta
# print(caffe_var_name, n, caffe_var_shape, '|||||||||||', tf_all_vars[i-2].name, tf_all_vars[i-2].shape.as_list())
### tf_var_shape: (channel,)
### caffe_var_shape: (channel,)
tf_var_data = sess.run(tf_all_vars[i - 2])
caffe_var_data[...] = tf_var_data[...]
i += 1
else:
### moving average factor, must set to 1
net.params[caffe_var_name][n].data[...] = 1.
# print(caffe_var_name, n, list(net.params[caffe_var_name][n].data.shape), '|||||||||||', net.params[caffe_var_name][n].data)
net.save(to_caffemodel)
print('Save converted caffemodel to', to_caffemodel)
return net
from nets.mobilenet import mobilenet_v2
from tensorflow.python.framework import graph_util
ckpt_file = "./model/20180402-114759/model-20180402-114759.ckpt-275"
output_file = './facenet_mobilenet_lf.pb'
with tf.Graph().as_default():
with tf.Session() as sess:
input_data = tf.placeholder(dtype=tf.float32,
shape=[None, 224, 224, 3],
name='input')
with tf.contrib.slim.arg_scope(
mobilenet_v2.training_scope(is_training=False)):
logits, end_points = mobilenet_v2.mobilenet(input_data,
num_classes=10575)
prelogits = tf.squeeze(end_points['global_pool'], [1, 2])
embeddings = tf.identity(prelogits, 'embeddings')
output_node_names = ['input', 'embeddings']
loader = tf.train.Saver()
# sess.run(tf.global_variables_initializer())
loader.restore(sess, ckpt_file)
builder = tf.saved_model.builder.SavedModelBuilder(
'./model/saved_model/')
def run_test(read_csv, logger):
img_folder = '/home/zgwu/HandImages/long_video/test_frames/'
save_folder = '/home/zgwu/HandImages/long_video/double_frames/'
if not os.path.exists(save_folder):
os.mkdir(save_folder)
label_dict = read_test_csv_from(read_csv)
input_images = tf.placeholder(dtype=tf.float32,
shape=[None, 224, 224, 3],
name='input')
# placeholder holds an input tensor for classification
if ModelType == 'mobilenet':
out, end_points = mobilenet_v2.mobilenet(input_tensor=input_images,
num_classes=num_classes,
depth_multiplier=1.0,
is_training=False)
else:
with slim.arg_scope(inception_v3.inception_v3_arg_scope()):
out, end_points = inception_v3.inception_v3(
inputs=input_images,
num_classes=num_classes,
is_training=False)
detection_graph, sessd = detector_utils.load_inference_graph(
) # ssd to detect hands
saver = tf.train.Saver()
sess = tf.Session()
saver.restore(sess, CKPT)
CM = [[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]]
D = {
'num_pictures': 0,
'acc': 0,
'num_hands': 0,
'detect_t': 0.0,
'classify_t': 0.0,
'o': [0, 0, 0, 0, 0, 0, 0],
'd': [0, 0, 0, 0, 0, 0, 0],
'r': [0, 0, 0, 0, 0, 0, 0],
'tp': [0, 0, 0, 0, 0, 0, 0]
}
tot_count = 0
y_true, y_pred = [], []
label_matrix = np.empty((0, num_classes), dtype=int)
score_matrix = np.empty((0, num_classes), dtype=int)
for num_img, (img_name, frame_label) in enumerate(label_dict.items()):
tot_count += 1
if tot_count % 100 == 1:
print('Process {} --- {} / {}'.format(img_name, tot_count,
len(label_dict)))
l, t, r, b, clazz = frame_label
acc_index = labelsDict[clazz]
D['o'][acc_index] += 1 # confusion matrix
# filename = os.path.basename(img_name)
name, ext = os.path.splitext(img_name)
# print("Processing the image : " + name + " ... {}/{}".format(num_img+1, len(label_dict)))
key = cv2.waitKey(5) & 0xff ## Use Esc key to close the program
if key == 27:
break
if key == ord('p'):
cv2.waitKey(0)
image_raw = cv2.imread(os.path.join(img_folder, img_name))
image_np = cv2.resize(image_raw, (im_width, im_height))
try:
image_np = cv2.cvtColor(image_np, cv2.COLOR_BGR2RGB)
except:
print("Error converting to RGB")
start = time.time() # set time
boxes, scores = detector_utils.detect_objects(image_np,
detection_graph, sessd)
hands = from_image_crop_boxes(num_hands_detect, score_thresh, scores,
boxes, im_width, im_height, 0.5)
endh = time.time() # detect hand
detect_t = endh - start
D['detect_t'] += detect_t
if not hands:
continue
else:
D['num_pictures'] += 1
D['d'][acc_index] += 1
for rank, rect in enumerate(hands):
D['num_hands'] += 1
left, top, right, bottom = rect
region = image_np[top:bottom, left:right]
region = cv2.resize(region, (224, 224), cv2.INTER_AREA)
# feed = np.expand_dims(region, axis=0) # maybe it's a wrong format to feed
img_data = tf.image.convert_image_dtype(np.array(region)[:, :,
0:3],
dtype=tf.float32) # RGB
# elements are in [0,1)
resized_img = tf.image.resize_images(img_data,
size=[224, 224],
method=0)
# decode an image
img = resized_img.eval(session=sess)
img.resize([1, 224, 224, 3])
# input an image array and inference to get predictions and set normal format
predictions = end_points['Predictions'].eval(
session=sess, feed_dict={input_images: img})
label = np.zeros((1, num_classes), dtype=int)
label[0, acc_index] = 1
label_matrix = np.append(label_matrix, label, axis=0)
score_matrix = np.append(score_matrix,
predictions.reshape([1, num_classes]),
axis=0)
#print(label, predictions.reshape([1, num_classes]))
predictions.resize([num_classes])
np.set_printoptions(precision=4, suppress=True)
index = int(np.argmax(predictions))
y_true.append(acc_index)
y_pred.append(index)
D['r'][index] += 1
msg = img_name + ' ' + clazz + ' ' + labelsStr[index]
CM[acc_index][index] += 1
if index == acc_index:
D['acc'] += 1
D['tp'][index] += 1
logger.info(msg)
if key == ord('s'):
region = cv2.cvtColor(region, cv2.COLOR_RGB2BGR)
cv2.imwrite(
frame_path + name + '_' + str(D['num_frames']) + '_' +
str(rank) + '.jpg', region)
cv2.waitKey(0)
endr = time.time()
classify_t = endr - endh
D['classify_t'] += classify_t
print(
"From {} pictures, we detect {} hands with {} accurate prediction ({:.2f})"
.format(tot_count, D['num_hands'], D['acc'],
D['acc'] / D['num_hands']))
result_log = '\n@@images_count: {} and detect_count: {}'.format(tot_count, D['num_pictures']) + \
'\n@@image_size: (width : {}, height: {})'.format(im_width, im_height) + \
'\n@@num_hand_detect: {} - {}%'.format(D['num_hands'], int(100 * D['num_hands'] / tot_count)) + \
'\n@@each_elapsed_time: (detect_hands: {:.4f}s, classify_hand: {:.4f}s)'.format(
D['detect_t'] / tot_count, D['classify_t'] / D['num_hands']) + \
'\n@@classify_result: Fist Admire Victory Okay None Palm Six' + \
'\n {: <6d}{: <8d}{: <9d}{: <6d}{: <6d}{: <6d}{} -- origin classes' \
'\n {: <6d}{: <8d}{: <9d}{: <6d}{: <6d}{: <6d}{} -- detect classes' \
'\n {: <6d}{: <8d}{: <9d}{: <6d}{: <6d}{: <6d}{} -- recognize count' \
'\n {: <6d}{: <8d}{: <9d}{: <6d}{: <6d}{: <6d}{} -- true positive' \
.format(D['o'][0], D['o'][1], D['o'][2], D['o'][3],D['o'][4], D['o'][5], D['o'][6],
D['d'][0], D['d'][1], D['d'][2], D['d'][3],D['d'][4], D['d'][5], D['d'][6],
D['r'][0], D['r'][1], D['r'][2], D['r'][3], D['r'][4], D['r'][5], D['r'][6],
D['tp'][0], D['tp'][1], D['tp'][2], D['tp'][3], D['tp'][4], D['tp'][5], D['tp'][6]) + \
'\n@@accuracy: {}/{} - {}%'.format(D['acc'], D['num_hands'], int(100 * D['acc'] / D['num_hands'])) + \
'\n' + '-' * 100 + \
'\n' + str(CM)
#print(result_log)
logger.info(result_log)
#print(classification_report(y_true, y_pred, target_names=labelsStr, digits=3))
logger.info(
str(
classification_report(y_true,
y_pred,
target_names=labelsStr,
digits=3)))
print(label_matrix.shape, score_matrix.shape)
# 计算每一类的ROC
fpr = dict()
tpr = dict()
roc_auc = dict()
# Compute micro-average ROC curve and ROC area（方法二）
fpr["micro"], tpr["micro"], _ = roc_curve(label_matrix.ravel(),
score_matrix.ravel())
roc_auc["micro"] = auc(fpr["micro"], tpr["micro"])
# FPR就是横坐标,TPR就是纵坐标
plt.plot(fpr["micro"],
tpr["micro"],
c='r',
lw=2,
alpha=0.7,
label=u'AUC=%.3f' % roc_auc["micro"])
plt.plot((0, 1), (0, 1), c='#808080', lw=1, ls='--', alpha=0.7)
plt.xlim((-0.01, 1.02))
plt.ylim((-0.01, 1.02))
plt.xticks(np.arange(0, 1.1, 0.1))
plt.yticks(np.arange(0, 1.1, 0.1))
plt.xlabel('False Positive Rate', fontsize=13)
plt.ylabel('True Positive Rate', fontsize=13)
plt.grid(b=True, ls=':')
plt.legend(loc='lower right', fancybox=True, framealpha=0.8, fontsize=12)
plt.title(u'The ROC and AUC of MobileNet Classifier.', fontsize=17)
plt.show()
"""
#1.2、先构建图结构，再加载权重
#临时添加slim到python搜索路径
import sys
sys.path.append('./models/research/slim')
#导入mobilenet_v2
from nets.mobilenet import mobilenet_v2
#重置图
tf.reset_default_graph()
#导入mobilenet，先构建图结构
#加载完毕后，tf.get_default_graph()中包含了mobilenet计算图结构，可以使用tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES)对比reset_graph前后的差异
images = tf.placeholder(tf.float32, (None, 224, 224, 3))
with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):
logits, endpoints = mobilenet_v2.mobilenet(images, depth_multiplier=1.4)
#定义saver类，用于恢复图权重
saver = tf.train.Saver()
with tf.Session() as sess:
#latest_checkpoint检查checkpoint检查点文件，查找最新的模型
#restore恢复图权重
saver.restore(sess, tf.train.latest_checkpoint('./model_ckpt/moilenet_v2'))
#get_tensor_by_name通过张量名称获取张量
print(
sess.run(tf.get_default_graph().get_tensor_by_name(
'MoilenetV2/Conv/weights:0')).shape)
#1.3、frozen inference
"""
pb文件将变量取值和计算图整个结构统一放在一个文件中，通过convert_variable_to_constants