我如何在张量流中加载png目录? [英] how can i load a directory of png in tensorflow?
问题描述
我有一个png文件目录。有一个火车文件夹和测试文件夹。在train文件夹中,我有10个文件夹作为10个标签[0 -9]。每个文件夹都包含该标签的png文件。我想将它们加载到张量流中进行训练。我是张量流的新手,我很难做到这一点
i have a directory of png files . there is a train folder and test folder . In the train folder i have 10 folders as 10 labels [ 0 -9 ] .Each folder contains png files of that label . I want to load them in tensor flow for training . I am new in tensor flow i am having a very hard time getting this done
我正在使用anaconda(py ver 3.5)
i am using anaconda ( py ver 3.5 )
import tensorflow as tf
filename_queue = tf.train.string_input_producer(
tf.train.match_filenames_once("./images/*.jpg"))
image_reader = tf.WholeFileReader()
我尝试使用它,但是可以使它工作。只能加载1张图片
i have tried using this but can make it work . it only loads 1 image
推荐答案
尽管它对我有用。您可以运行此脚本吗? (也更新为获取标签)
It's working for me though. Can you run this script ? (Updated to get Labels as well)
import tensorflow as tf
filename_queue = tf.train.string_input_producer(
tf.train.match_filenames_once("/home/xxx/Desktop/stackoverflow/images/*/*.png"))
image_reader = tf.WholeFileReader()
key, image_file = image_reader.read(filename_queue)
S = tf.string_split([key],'/')
length = tf.cast(S.dense_shape[1],tf.int32)
# adjust constant value corresponding to your paths if you face issues. It should work for above format.
label = S.values[length-tf.constant(2,dtype=tf.int32)]
label = tf.string_to_number(label,out_type=tf.int32)
image = tf.image.decode_png(image_file)
# Start a new session to show example output.
with tf.Session() as sess:
# Required to get the filename matching to run.
tf.initialize_all_variables().run()
# Coordinate the loading of image files.
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(coord=coord)
for i in xrange(6):
# Get an image tensor and print its value.
key_val,label_val,image_tensor = sess.run([key,label,image])
print(image_tensor.shape)
print(key_val)
print(label_val)
# Finish off the filename queue coordinator.
coord.request_stop()
coord.join(threads)
文件目录
./images/1/1.png
./images/1/2.png
./images/3/1.png
./images/3/2.png
./images/2/1.png
./images/2/2.png
输出:
(881, 2079, 3)
/home/xxxx/Desktop/stackoverflow/images/3/1.png
3
(155, 2552, 3)
/home/xxxx/Desktop/stackoverflow/images/2/1.png
2
(562, 1978, 3)
/home/xxxx/Desktop/stackoverflow/images/3/2.png
3
(291, 2558, 3)
/home/xxxx/Desktop/stackoverflow/images/1/1.png
1
(157, 2554, 3)
/home/xxxx/Desktop/stackoverflow/images/1/2.png
1
(866, 936, 3)
/home/xxxx/Desktop/stackoverflow/images/2/2.png
2
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