Win10+vs2017+denseflow compilation

Because you need to train your own motion recognition model , So we need to make relevant data sets , One of them is to make optical flow data , Try using tradition opencv To do it , Found that the speed is too slow . Finally find denseflow library , So it is recorded here win10 Next installation process .

One 、 Installation dependency

1.1、CUDA

• CUDA (driver version > 400)

By default, it has been installed , Engage in in-depth learning and installation pyTorch/Tensorflow It should have been installed . Here mine cuda The environment is ：CUDA10.0

C:\Users\Administrator>nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2018 NVIDIA Corporation
Built on Sat_Aug_25_21:08:04_Central_Daylight_Time_2018
Cuda compilation tools, release 10.0, V10.0.130

1.2、OpenCV

• OpenCV (with CUDA support)

Installation support is required here CUDA Of OpenCV, Bloggers have been stuck here for a long time ..., Here you need to compile OpenCV Pay attention to the following options ：

• BUILD_CUDA_STUBS: Choose
• OPENCV_DNN_CUDA: Not selected
• WITH_CUDA: Choose

meanwhile , It mainly needs opencv_contrib modular , Need and OpenCV With the installation

When selecting a compiler , Best choice vs2017 or vs2015, Others may not compile successfully .

Please refer to the following link for installation ：VS2019+opencv4.5+CMake compile opencv_contrib-4.5.0 modular （ A more detailed tutorial ）

1.3、Boost

• Boost

normal setup , There are also many related tutorials online , Such as ：Windows10 The configuration Boost

Two 、Cmake compile

2.1、 Generate compileable files sln

here , We can refer to github The last tutorial is directly executed ：

git clone https://github.com/open-mmlab/denseflow.git
mkdir build && cd build
cmake -DCMAKE_INSTALL_PREFIX=$HOME/app -DUSE_HDF5=no -DUSE_NVFLOW=no ..

It can also be in clone After the source code , Use cmake-gui Compile , Here I choose the first method . therefore , We need to change the relevant CMakeLists.txt The contents of the document , Revised as follows ：

• add to OpenCV library

This step is mainly to make Cmake Find out OpenCV The location of , Revised as follows ：

set(OpenCV_DIR D:\\cplusplus\\library\\opencv\\opencv-4.5.2\\build)

Please refer to your OpenCV Compilation location .

• add to Boost library

set(Boost_USE_STATIC_LIBS ON)
set(BOOST_ROOT D:\\cplusplus\\library\\boost_1_73_0)

• Delete pthread rely on

target_link_libraries(${DenseFlow_LIB} ${OpenCV_LIBS} Boost::filesystem ${Boost_LIBRARIES})

complete CMakeLists.txt The documents are as follows ：

cmake_minimum_required(VERSION 3.12)
project(DenseFlow)

option(USE_HDF5 "Whether to build hdf5 for optical flow image saving" OFF)
option(USE_NVFLOW "Whether to use nvidia hardware optical flow" OFF)

set(OpenCV_DIR D:\\cplusplus\\library\\opencv\\opencv-4.5.2\\build)
set(Boost_USE_STATIC_LIBS ON)
set(BOOST_ROOT D:\\cplusplus\\library\\boost_1_73_0)

include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fPIC")
elseif(COMPILER_SUPPORTS_CXX0X)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
    message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()

find_package(CUDA REQUIRED)
find_package(OpenCV REQUIRED)

set(DenseFlow_LIB zzdenseflow)

message(STATUS "OpenCV library status:")
message(STATUS "    config: ${OpenCV_DIR}")
message(STATUS "    version: ${OpenCV_VERSION}")
message(STATUS "    libraries: ${OpenCV_LIBS}")
message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")

find_package(Boost REQUIRED COMPONENTS date_time filesystem iostreams)
message(STATUS "Boost library status:")
message(STATUS "    version: ${Boost_VERSION}")
message(STATUS "    libraries: ${Boost_LIBRARIES}")
message(STATUS "    include path: ${Boost_INCLUDE_DIRS}")

add_library(${DenseFlow_LIB} src/common.cpp src/utils.cpp src/denseflow_gpu.cpp)
include_directories(${OpenCV_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS} include ${PROJECT_BINARY_DIR})
link_directories(${OpenCV_LIB_DIRS})
target_link_libraries(${DenseFlow_LIB} ${OpenCV_LIBS} Boost::filesystem ${Boost_LIBRARIES})

if (USE_HDF5)
    find_package(HDF5 COMPONENTS HL REQUIRED)
    message(STATUS "HDF5 library status:")
    message(STATUS "    version: ${HDF5_VERSION}")
    message(STATUS "    libraries: ${HDF5_LIBRARIES} ${HDF5_HL_LIBRARIES}")
    message(STATUS "    include path: ${HDF5_INCLUDE_DIRS} ${HDF5_HL_INCLUDE_DIR}")
    set(HDF5_DEFINITION 1)
    include_directories(${HDF5_INCLUDE_DIRS} ${HDF5_HL_INCLUDE_DIR})
    target_link_libraries(${DenseFlow_LIB} ${HDF5_LIBRARIES} ${HDF5_HL_LIBRARIES})
else()
    set(HDF5_DEFINITION 0)
endif()

if (USE_NVFLOW)
    set(NVFLOW_DEFINITION 1)
else()
    set(NVFLOW_DEFINITION 0)
endif()

configure_file(
    "${PROJECT_SOURCE_DIR}/include/config.h.in"
    "${PROJECT_BINARY_DIR}/config.h"
)

add_executable(denseflow tools/denseflow.cpp)
target_link_libraries(denseflow ${DenseFlow_LIB})

install (
    TARGETS denseflow ${DenseFlow_LIB}
    RUNTIME DESTINATION bin
    ARCHIVE DESTINATION lib
    LIBRARY DESTINATION lib
)

After execution, you can find .sln file , Open it to vs Compile the .

2.2、 Compile the generated denseflow.exe

Click on the open vs2017, Compile . The following errors will occur ：

• error C2872: “ACCESS_MASK”: Ambiguous symbols

reason ：include/common.h in using namespace cv; Caused by space conflict

resolvent ： Delete include/common.h Medium using namespace cv; Space naming , meanwhile , Need to be used in OpenCV Add cv：： Namespace

Such as ：void convertFlowToImage(const Mat &flow_x, const Mat &flow_y, Mat &img_x, Mat &img_y, double lowerBound,double higherBound);

Change it to void convertFlowToImage(const cv::Mat &flow_x, const cv::Mat &flow_y, cv::Mat &img_x, cv::Mat &img_y, double lowerBound,double higherBound);

Other places are similar . This requires changing all relevant codes , Otherwise, it will report a mistake .

• fatal error C1083: Can't open include file : “sys/syscall.h”: No such file or directory

reason ： When this header file linux Upper , If in windwos What I said , Need to be changed to windows.h The header file

resolvent ： stay src/denseflow_gpu.cpp Cancellation #include <sys/syscall.h>, Add the following ：

//#include <sys/syscall.h>
#if __linux
#include <sys/syscall.h>
#elif defined(_WIN32) || defined(_WIN64)
#include <windows.h>       // Or something like it. 
#endif

Final , We compiled successfully .

stay build/Release We found our generated denseflow.exe.