ubuntu版本，16.04-LTS

参考文档，
Installing Caffe on Ubuntu (CPU-ONLY)

安装caffe

这里是从源代码安装caffe，再链接给openpose使用。实际上，可以跳过这一步，直接安装openpose，openpose中的脚本会自己下载编译一份caffe。

1 安装各种依赖包

sudo apt-get install -y --no-install-recommends libboost-all-dev
sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libboost-all-dev libhdf5-serial-dev libgflags-dev libgoogle-glog-dev liblmdb-dev protobuf-compiler libopenblas-dev libatlas-base-dev

2 下载caffe

git clone https://github.com/BVLC/caffe
cd caffe
export CAFFE_HOME=${PWD}

3 安装python依赖

sudo apt-get install python-pip
export LC_ALL=C
sudo pip install scikit-image protobuf
cd ${CAFFE_HOME}/python
for req in $(cat requirements.txt); do sudo pip install $req; done

4 修改caffe的Makefile文件

cd ${CAFFE_HOME}
vim Makefile.config

主要有几个属性：

使用CPU还是GPU: 
# CPU-only switch (uncomment to build without GPU support).
CPU_ONLY := 1

设置OpenCV版本
# Uncomment if you're using OpenCV 3
OPENCV_VERSION := 3

设置anaconda目录
# ANACONDA_HOME := $(HOME)/anaconda2
# PYTHON_LIB := $(ANACONDA_HOME)/lib

遇到的错误

1 编译失败，缺少openlabs

错误

In file included from ./include/caffe/util/math_functions.hpp:11:0,
from src/caffe/data_transformer.cpp:10:
./include/caffe/util/mkl_alternate.hpp:14:19: fatal error: cblas.h: No such file or directory
compilation terminated.
Makefile:581: recipe for target '.build_release/src/caffe/data_transformer.o' failed
make: *** [.build_release/src/caffe/data_transformer.o] Error 1

解决

sudo apt-get install libopenblas-dev

2 编译失败，找不到文件 hdf5.h

错误

src/caffe/layers/hdf5_data_layer.cpp:13:18: fatal error: hdf5.h: No such file or directory
compilation terminated.
Makefile:581: recipe for target '.build_release/src/caffe/layers/hdf5_data_layer.o' failed
make: *** [.build_release/src/caffe/layers/hdf5_data_layer.o] Error 1

解决

查找 hdf5.h 文件的位置，例如在 /usr/include/hdf5/serial/hdf5.h
修改Makefile.config，修改属性 INCLUDE_PATH，添加属性值 /usr/include/hdf5/serial

3 链接失败，找不到文件 hdf5_hl hdf5 cblas atlas

错误

LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -lhdf5_hl
/usr/bin/ld: cannot find -lhdf5
collect2: error: ld returned 1 exit status
Makefile:572: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: *** [.build_release/lib/libcaffe.so.1.0.0] Error 1

解决

locate查找文件的文件，然后添加到 Makefile.config 文件中 LIBEARY_DIS 属性的值里

4 链接失败，找不到文件 lcblas latlas

错误

LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -lcblas
/usr/bin/ld: cannot find -latlas
collect2: error: ld returned 1 exit status
Makefile:572: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: *** [.build_release/lib/libcaffe.so.1.0.0] Error 1

解决

sudo apt-get install libatlas-base-dev

5 执行 make distribute 时找不到 arrayobject.h 文件

错误

CXX/LD -o python/caffe/_caffe.so python/caffe/_caffe.cpp
python/caffe/_caffe.cpp:10:31: fatal error: numpy/arrayobject.h: No such file or directory
compilation terminated.
Makefile:507: recipe for target 'python/caffe/_caffe.so' failed
make: *** [python/caffe/_caffe.so] Error 1

解决

sudo apt-get install python-numpy

安装OpenPose

其实OpenPose中自带了caffe的安装方法，并不需要再单独安装。

git clone git@github.com:CMU-Perceptual-Computing-Lab/openpose.git
cd openpose
export OPENPOSE_HOME=${PWD}
mkdir build
cd build
cmake ..
make -j`nproc`

如果没有GPU，可以设置只编译CPU版本的，修改CMakeLists.txt文件

1. 注释掉 set(GPU_MODE CUDA CACHE STRING “Select the acceleration GPU library or CPU otherwise.”)
2. 添加 set(GPU_MODE CPU_ONLY CACHE STRING “No GPU, CPU ONLY”)