我在这个问题上停留了一段时间。我正在尝试使用tf_cnnvis（https://github.com/InFoCusp/tf_cnnvis）包运行以下代码，以可视化网络中的已学习功能，在该网络中，我导入了protobuf模型，然后尝试为其提供一个包含一些图像数据的张量（我相信是作为feed_dict提供的，尽管我可能会误会。）
import numpy as np
import tensorflow as tf
import keras as k
import cv2
import tf_cnnvis as tfv
from tensorflow.python.platform import gfile
from keras import backend as K
model_filename = "saved_model.pb"
image = "test.jpg"
gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=0.8, allow_growth=False)
sess = tf.Session(config=tf.ConfigProto(gpu_options=gpu_options))
K.set_session(sess)
K._LEARNING_PHASE = tf.constant(0)
K.set_learning_phase(0)
with gfile.FastGFile(model_filename, 'rb') as f:
graph_def = tf.GraphDef()
graph_def.ParseFromString(f.read())
tf.import_graph_def(graph_def)
X = tf.placeholder(tf.float32, shape = [None, 48, 64, 3],name = "input") # placeholder for input images
y = tf.placeholder(tf.float32, shape = [None, 8])
im = np.array(cv2.imread(image))
im = np.expand_dims(im, 0)
layers = ['r', 'p', 'c']
init_op = init_op = tf.group(tf.global_variables_initializer(), tf.local_variables_initializer())
sess.run(init_op)
with sess.as_default():
is_success = tfv.activation_visualization(sess_graph_path=tf.get_default_graph(), value_feed_dict = {X : im}, layers=layers)
sess.close()
当我运行代码时，我会得到一个“ InvalidArgumentError”和以下回溯：
Traceback (most recent call last):
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1292, in _do_call
return fn(*args)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1277, in _run_fn
options, feed_dict, fetch_list, target_list, run_metadata)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1367, in _call_tf_sessionrun
run_metadata)
tensorflow.python.framework.errors_impl.InvalidArgumentError: You must feed a value for placeholder tensor 'import/batch_normalization_1_input' with dtype float and shape [?,48,64,3]
[[{{node import/batch_normalization_1_input}} = Placeholder[_class=["loc:@import/batch_normalization/cond/FusedBatchNorm_1/Switch"], dtype=DT_FLOAT, shape=[?,48,64,3], _device="/job:localhost/replica:0/task:0/device:GPU:0"]()]]
[[{{node import/conv2d/Relu/_5}} = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_50_import/conv2d/Relu", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:CPU:0"]()]]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "vis2.py", line 36, in <module>
is_success = tfv.activation_visualization(sess_graph_path=tf.get_default_graph(), value_feed_dict = {X : im}, layers=layers)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 406, in activation_visualization
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 169, in _get_visualization
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 227, in _visualization_by_layer_type
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 288, in _visualization_by_layer_name
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 315, in _activation
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 887, in run
run_metadata_ptr)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1110, in _run
feed_dict_tensor, options, run_metadata)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1286, in _do_run
run_metadata)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1308, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InvalidArgumentError: You must feed a value for placeholder tensor 'import/batch_normalization_1_input' with dtype float and shape [?,48,64,3]
[[{{node import/batch_normalization_1_input}} = Placeholder[_class=["loc:@import/batch_normalization/cond/FusedBatchNorm_1/Switch"], dtype=DT_FLOAT, shape=[?,48,64,3], _device="/job:localhost/replica:0/task:0/device:GPU:0"]()]]
[[{{node import/conv2d/Relu/_5}} = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_50_import/conv2d/Relu", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:CPU:0"]()]]
Caused by op 'import/batch_normalization_1_input', defined at:
File "vis2.py", line 36, in <module>
is_success = tfv.activation_visualization(sess_graph_path=tf.get_default_graph(), value_feed_dict = {X : im}, layers=layers)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 406, in activation_visualization
path_logdir = path_logdir, path_outdir = path_outdir)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 159, in _get_visualization
s = _graph_import_function(PATH,s)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 177, in _graph_import_function
new_saver = tf.train.import_meta_graph(PATH) # Import graph
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/training/saver.py", line 1650, in import_meta_graph
meta_graph_or_file, clear_devices, import_scope, **kwargs)[0]
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/training/saver.py", line 1672, in _import_meta_graph_with_return_elements
**kwargs))
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/meta_graph.py", line 806, in import_scoped_meta_graph_with_return_elements
return_elements=return_elements)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/util/deprecation.py", line 488, in new_func
return func(*args, **kwargs)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/importer.py", line 442, in import_graph_def
_ProcessNewOps(graph)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/importer.py", line 234, in _ProcessNewOps
for new_op in graph._add_new_tf_operations(compute_devices=False): # pylint: disable=protected-access
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 3426, in _add_new_tf_operations
for c_op in c_api_util.new_tf_operations(self)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 3426, in <listcomp>
for c_op in c_api_util.new_tf_operations(self)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 3285, in _create_op_from_tf_operation
ret = Operation(c_op, self)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 1748, in __init__
self._traceback = tf_stack.extract_stack()
InvalidArgumentError (see above for traceback): You must feed a value for placeholder tensor 'import/batch_normalization_1_input' with dtype float and shape [?,48,64,3]
[[{{node import/batch_normalization_1_input}} = Placeholder[_class=["loc:@import/batch_normalization/cond/FusedBatchNorm_1/Switch"], dtype=DT_FLOAT, shape=[?,48,64,3], _device="/job:localhost/replica:0/task:0/device:GPU:0"]()]]
[[{{node import/conv2d/Relu/_5}} = _Recv[client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_50_import/conv2d/Relu", tensor_type=DT_FLOAT, _device="/job:localhost/replica:0/task:0/device:CPU:0"]()]]
现在，我环顾四周，并得出了以下结论：这归因于模型中我具有的BatchNormalization层中设置的学习阶段变量。导入模型后，如何设置学习阶段尚不清楚。有些人在初始化模型之前就设置了学习阶段（您已经尝试过，正如我所见），但是在大多数示例中，他们使用的是预先提供的大型模型之一（例如MNIST）。其他人在feed_dict中提供了学习阶段，我也尝试过，例如：
with sess.as_default():
is_success = tfv.activation_visualization(sess_graph_path=tf.get_default_graph(), value_feed_dict = {X : im, K.learning_phase(): 0}, layers=layers)
但这给了我不同的错误消息：
Traceback (most recent call last):
File "vis2.py", line 36, in <module>
is_success = tfv.activation_visualization(sess_graph_path=tf.get_default_graph(), value_feed_dict = {X : im, K.learning_phase(): 0}, layers=layers)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 406, in activation_visualization
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 169, in _get_visualization
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 227, in _visualization_by_layer_type
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/tf_cnnvis.py", line 270, in _visualization_by_layer_name
File "/usr/local/anaconda3/lib/python3.6/site-packages/tf_cnnvis-1.0.0-py3.6.egg/tf_cnnvis/utils.py", line 79, in parse_tensors_dict
AttributeError: 'int' object has no attribute 'name'
在此阶段，由于我仍不确定我要解决的问题是否正确，我非常感谢您的投入。如果您还有其他需要我提供的内容，请询问。