Мой код предназначен для чтения изображения из файла tfrecord
import tensorflow as tf
import numpy as np
import matplotlib.pyplot as plt
data_path='christmas.tfrecords'
with tf.Session() as sess:
feature={'image':tf.FixedLenFeature([],tf.string),'label':tf.FixedLenFeature([],tf.int64)}
# Create a list of filenames and pass it to a queue
filename_queue = tf.train.string_input_producer([data_path], num_epochs=1)
# Define a reader and read the next record
reader = tf.TFRecordReader()
_, serialized_example = reader.read(filename_queue)
# Decode the record read by the reader
features = tf.parse_single_example(serialized_example, features=feature)
# Convert the image data from string back to the numbers
image = tf.decode_raw(features['image'], tf.float32)
# Cast label data into int32
label = tf.cast(features['label'], tf.int32)
# Reshape image data into the original shape
image = tf.reshape(image, [224, 224, 1])
# Any preprocessing here ...
# Creates batches by randomly shuffling tensors
images, labels = tf.train.shuffle_batch([image, label], batch_size=10, capacity=30, num_threads=1, min_after_dequeue=10)
init_op = tf.group(tf.global_variables_initializer(), tf.local_variables_initializer())
sess.run(init_op)
# Create a coordinator and run all QueueRunner objects
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(coord=coord)
for batch_index in range(5):
img, lbl = sess.run([images, labels])
img = img.astype(np.uint8)
for j in range(6):
plt.subplot(2, 3, j+1)
plt.imshow(img[j, ...])
plt.title('cat' if lbl[j]==0 else 'dog')
plt.show()
# Stop the threads
coord.request_stop()
# Wait for threads to stop
coord.join(threads)
sess.close()
Сообщение об ошибке
Traceback (most recent call last):
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1323, in _do_call
return fn(*args)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1302, in _run_fn
status, run_metadata)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/framework/errors_impl.py", line 473, in __exit__
c_api.TF_GetCode(self.status.status))
tensorflow.python.framework.errors_impl.OutOfRangeError: RandomShuffleQueue '_1_shuffle_batch/random_shuffle_queue' is closed and has insufficient elements (requested 10, current size 0)
[[Node: shuffle_batch = QueueDequeueManyV2[component_types=[DT_FLOAT, DT_INT32], timeout_ms=-1, _device="/job:localhost/replica:0/task:0/device:CPU:0"](shuffle_batch/random_shuffle_queue, shuffle_batch/n)]]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "read_tfrecords.py", line 35, in <module>
img, lbl = sess.run([images, labels])
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 889, in run
run_metadata_ptr)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1120, in _run
feed_dict_tensor, options, run_metadata)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1317, in _do_run
options, run_metadata)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1336, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.OutOfRangeError: RandomShuffleQueue '_1_shuffle_batch/random_shuffle_queue' is closed and has insufficient elements (requested 10, current size 0)
[[Node: shuffle_batch = QueueDequeueManyV2[component_types=[DT_FLOAT, DT_INT32], timeout_ms=-1, _device="/job:localhost/replica:0/task:0/device:CPU:0"](shuffle_batch/random_shuffle_queue, shuffle_batch/n)]]
Caused by op 'shuffle_batch', defined at:
File "read_tfrecords.py", line 27, in <module>
images, labels = tf.train.shuffle_batch([image, label], batch_size=10, capacity=30, num_threads=1, min_after_dequeue=10)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/training/input.py", line 1225, in shuffle_batch
name=name)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/training/input.py", line 796, in _shuffle_batch
dequeued = queue.dequeue_many(batch_size, name=name)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/ops/data_flow_ops.py", line 464, in dequeue_many
self._queue_ref, n=n, component_types=self._dtypes, name=name)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/ops/gen_data_flow_ops.py", line 2418, in _queue_dequeue_many_v2
component_types=component_types, timeout_ms=timeout_ms, name=name)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/framework/op_def_library.py", line 787, in _apply_op_helper
op_def=op_def)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 2956, in create_op
op_def=op_def)
File "/home/robinreni/Documents/pythonprojects/cnn/lib/python3.6/site-packages/tensorflow/python/framework/ops.py", line 1470, in __init__
self._traceback = self._graph._extract_stack() # pylint: disable=protected-access
OutOfRangeError (see above for traceback): RandomShuffleQueue '_1_shuffle_batch/random_shuffle_queue' is closed and has insufficient elements (requested 10, current size 0)
[[Node: shuffle_batch = QueueDequeueManyV2[component_types=[DT_FLOAT, DT_INT32], timeout_ms=-1, _device="/job:localhost/replica:0/task:0/device:CPU:0"](shuffle_batch/random_shuffle_queue, shuffle_batch/n)]]
Я преобразовал все изображения и метки в файл tfrecord, и мне нужно преобразовать файл в необработанное изображение и метку во время обучения. Я пытаюсь прочитать изображение с tfrecords, но выскакивает ошибка вне диапазона. Пожалуйста, помогите, как исправить эту ошибку
