Mac下基於python3.7，Opencv4.01進行caffe編譯安裝

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1 安裝依賴包

brew install -vd snappy leveldb gflags glog szip lmdb
brew install openblas
brew install hdf5 opencv
# boost 需要在後續配置中注意
brew install boost boost-python3

# 編譯protobuf3.7.0
cd protobuf-3.7.0
./autogen.sh
./configure
sudo make -j8
sudo make install -j8

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2 下載caffe

git clone https://github.com/BVLC/caffe.git
cd caffe/
cp Makefile.config.example Makefile.config

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3 配置文件

• 配置使用opencv4

  ./include/caffe/common.hpp第70行後新增如下內容：

  // Supporting OpenCV4
  #if (CV_MAJOR_VERSION == 4)
  #define CV_LOAD_IMAGE_COLOR cv::IMREAD_COLOR
  #define CV_LOAD_IMAGE_GRAYSCALE cv::IMREAD_GRAYSCALE
  #endif
  

• 配置Makefile.config

  # CPU-only switch (uncomment to build without GPU support).
  CPU_ONLY := 1
  
  # uncomment to disable IO dependencies and corresponding data layers
  USE_OPENCV := 0
  # USE_LEVELDB := 0
  # USE_LMDB := 0
  # This code is taken from https://github.com/sh1r0/caffe-android-lib
  USE_HDF5 := 1
  
  # Uncomment if you're using OpenCV 3
  OPENCV_VERSION := 4
  
  # open for OpenBlas
  BLAS := open
  
  # Homebrew puts openblas in a directory that is not on the standard 	search path
  BLAS_INCLUDE := $(shell brew --prefix openblas)/include
  BLAS_LIB := $(shell brew --prefix openblas)/lib
  
  # PYTHON_INCLUDE := 
  # 					/usr/local/lib/python2.7/site-packages/numpy/core/include
  
  # Uncomment to use Python 3 (default is Python 2)
  PYTHON_LIBRARIES := boost_python3 python3.7m
  PYTHON_INCLUDE := /usr/local/Cellar/python/3.7.2_2/Frameworks/Python.framework/Versions/3.7/include/python3.7m \
  			/usr/local/lib/python3.7/site-packages/numpy/core/include/numpy
  
  # We need to be able to find libpythonX.X.so or .dylib.
  PYTHON_LIB := /usr/local/lib
  # Uncomment to support layers written in Python (will link against 	Python libs)
  WITH_PYTHON_LAYER := 1
  
  # Whatever else you find you need goes here.
  INCLUDE_DIRS := $(PYTHON_INCLUDE) /usr/local/include
  LIBRARY_DIRS := $(PYTHON_LIB) /usr/local/lib /usr/lib
  
  # N.B. both build and distribute dirs are cleared on `make clean`
  BUILD_DIR := build
  DISTRIBUTE_DIR := distribute
  
  # The ID of the GPU that 'make runtest' will use to run unit tests.
  TEST_GPUID := 0
  
  # enable pretty build (comment to see full commands)
  Q ?= @
  

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4 預編譯

mkdir build
cd build
cmake ..

5 修改編譯後的文件配置

• 修改CaffeConfig.cmake第53行

  set(Caffe_CPU_ONLY ON)
  

• 修改CMakeCache.txt

  //Path to a program.
  PYTHON_EXECUTABLE:FILEPATH=/usr/local/bin/python3
  
  //Path to a file.
  PYTHON_INCLUDE_DIR:PATH=/usr/local/Cellar/python/3.7.2_2/Frameworks/Python.framework/Versions/3.7/include/python3.7m
  
  //Path to a library.
  PYTHON_LIBRARY:FILEPATH=/usr/local/Cellar/python/3.7.2_2/Frameworks/Python.framework/Versions/3.7/lib/libpython3.7m.dylib
  
  //Flags used by the CXX compiler during all build types.
  CMAKE_CXX_FLAGS:STRING=-std=c++11
  
  //Boost python library (debug)
  Boost_PYTHON_LIBRARY_DEBUG:FILEPATH=/usr/local/Cellar/boost-python3/1.68.0/lib/libboost_python37-mt.dylib
    
  //Boost python library (release)
  Boost_PYTHON_LIBRARY_RELEASE:FILEPATH=/usr/local/Cellar/boost-python3/1.68.0/lib/libboost_python37-mt.dylib
    
  //Build Caffe without CUDA support
  CPU_ONLY:BOOL=ON
  

6 再編譯

cmake ..
sudo make all -j8
sudo make pycaffe -j8

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7 問題

• Could NOT find vecLib (missing: vecLib_INCLUDE_DIR)

  # 修改caffe下文件： cmake/Modules/FindvecLib.cmake  的Line 19修改爲
  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/Accelerate.framework/Versions/Current/Frameworks/vecLib.framework/Headers/
  

• ld: symbol(s) not found for architecture x86_64

  cv::imread(cv::String const&, int)”, referenced from:
  caffe::WindowDataLayer::InternalThreadEntry() in window_data_layer.o
  caffe::WindowDataLayer::InternalThreadEntry() in window_data_layer.o
  caffe::ReadImageToCVMat(std::string const&, int, int, bool) in io.o
  “cv::imdecode(cv::_InputArray const&, int)”, referenced from:
  caffe::DecodeDatumToCVMat(caffe::Datum const&, int, int, bool) in io.o
  ld: symbol(s) not found for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)[/plain]
  
  

  出現上述信息的原因是cv::imread是在opencv_imgcodecs中定義的，將-lopencv_imgcodecs在Linker Flags也加上即可，即在Makefile裏搜索pthread 把這個選項緊跟在後面。

• No module named caffe

  vim ~/.bash_profile
  # 文件中添加
  export PYTHONPATH=~/caffe/python:$PYTHONPATH
  
  # 重啓
  source ~/.bash_profile
  

• ModuleNotFoundError: No module named ‘google’

  pip3 install protobuf