小编Tae*_*Lee的帖子

详细信息:Ubuntu 14.04(LTS),OpenCV 2.4.13,Spyder 2.3.9(Python 2.7),Tensorflow r0.10

我想用Python和Tensorflow(可选的OpenCV)从图像中识别Number .

另外,我想使用具有张量流的MNIST数据训练

像这样(代码被引用到这个页面的视频),

码:

import tensorflow as tf
import random

from tensorflow.examples.tutorials.mnist import input_data
mnist = input_data.read_data_sets("MNIST_data/", one_hot=True)

x = tf.placeholder("float", [None, 784])
y = tf.placeholder("float", [None, 10])

W = tf.Variable(tf.zeros([784, 10]))
b = tf.Variable(tf.zeros([10]))

learning_rate = 0.01
training_epochs = 25
batch_size = 100
display_step = 1

### modeling ###

activation = tf.nn.softmax(tf.matmul(x, W) + b)

cross_entropy = tf.reduce_mean(-tf.reduce_sum(y * tf.log(activation), reduction_indices=1))

optimizer …