深度学习框架keras安装（后端基于Tensorflow/theano）

1、安装python3、tensorflow、numpy、scipy

安装python3及开发工具

sudo apt-get install python3sudo apt-get install python-setuptools

安装pip

sudo apt-get install python3-pip

安装tensorflow/numpy/scipy

pip3 install numpypip3 install scipypip3 install tensorflow

2、安装keras

pip3 install keras

3、安装成功之后的效果

ubuntu:~$ python3Python 3.5.3 (default, Jan 19 2017, 14:11:04) [GCC 6.3.0 20170118] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import kerasUsing TensorFlow backend.>>> exit()

修改keras配置文件，可以更改keras后端依赖的框架：
vim ~/.keras/keras.json

{    "image_data_format": "channels_last",    "epsilon": 1e-07,    "backend": "tensorflow",    "floatx": "float32"}

把tensorflow改为theano，
同时把channels_last改为channels_first,
即可切换后端框架，如下：

{    "image_data_format": "channels_first",    "epsilon": 1e-07,    "backend": "theano",    "floatx": "float32"}