ubuntu/ARM编译使用Dlib、OpenCV

参考文章：

ubuntu安装Dlib（C++与Python）

https://blog.csdn.net/sinat_38354963/article/details/90517321

ubuntu编译使用Dlib、OpenCV

https://blog.csdn.net/qq_34106574/article/details/85626465

opencv之在Linux下编译opencv程序的两种方式g++、cmake（参考性较弱）

https://blog.csdn.net/keith_bb/article/details/52864851

ARM交叉编译工具下载、或已安装

https://blog.csdn.net/baidu_38172402/article/details/82908838

ARM编译Dlib、cmake 交叉编译防坑指南

https://github.com/david8862/dlib_on_arm

https://blog.csdn.net/cloudybear/article/details/79237137

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cmake编译参数修改，aarch64版本，-mtune=cortex-a35

https://blog.csdn.net/yiran103/article/details/104065490

https://community.arm.com/cn/f/discussions/9924/neon--mfpu-neon-fpu-64bit

https://gcc.gnu.org/onlinedocs/gcc-7.3.0/gcc/AArch64-Options.html#AArch64-Options

ubuntu下dlib编译C++（共享库）及使用，即cmake编译dlib开源文件的步骤和文件结构（讲解详细，example编译，好）

https://blog.csdn.net/QTVLC/article/details/83313208

dlib的gpu环境配置（python版）

https://blog.csdn.net/jixinpu/article/details/83010456

Dlib教程docs编译（编不过，作者用dlib.net的，makedocs报错）

make: sphinx-build: Command not found

https://blog.csdn.net/Will_Ye/article/details/106319473

linux中没有dos2UNIX或者UNIX2dos命令怎么解决办法（sudo apt-get install dos2unix）

https://blog.csdn.net/w616589292/article/details/38274475/

makedocs前需安装python版dlib（python setup.py install），下载dlib-master进行编译，代码全

奉上我的编译代码：

ubuntu主机

编译安装Dlib

mkdir x64_build
cd x64_build
cmake .. -DUSE_AVX_INSTRUCTIONS=1
cmake --build . --config Release
sudo make install
sudo ldconfig

build.sh文件

mkdir build
cd build
cmake ..
make -j8 #用make也行

CMakeLists.txt文件

cmake_minimum_required(VERSION 2.8.4)  #版本最小为2.8.4
 
PROJECT(dlib_facedetector)   #设置工程名
 
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O2 -DDLIB_JPEG_SUPPORT")
 
IF(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Weverything")
ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
ENDIF()
 
#INCLUDE OPENCV
FIND_PACKAGE(OpenCV REQUIRED)
INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS})
message(STATUS "Opencv include dir found at ${OpenCV_INCLUDE_DIRS}")
 
#包含头文件
INCLUDE_DIRECTORIES(/home/robert/DeepLearning/Dlib/dlib-19.19.0) #dlib根目录地址
LINK_DIRECTORIES(/home/robert/DeepLearning/Dlib/dlib-19.19.0/x64_build/dlib/) #dlib编译后bulid下dlib地址
 
#生产类似于.exe的可执行文件
ADD_EXECUTABLE(${PROJECT_NAME} face_detection_dlib_hog.cpp)
#链接库
TARGET_LINK_LIBRARIES(${PROJECT_NAME} dlib ${OpenCV_LIBS})
#TARGET_LINK_LIBRARIES(dlib_detector libjpeg.so)

ARM板子编译Dlib

build.sh文件

#!/bin/bash
set -e # Exit immediately if a command exits with a non-zero status.
BuildDir=dlib_build
if [ ! -d "$BuildDir" ]; then
  # Take action if $BuildDir doesn‘t exists. 
  echo "create ${BuildDir}..."
  mkdir -p ${BuildDir}
fi
cd ${BuildDir}

echo "building Dlib19.19.0"
export LD_LIBRARY_PATH=/opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux/usr/lib
source /opt/fsl-imx-xwayland/4.14-sumo/environment-setup-aarch64-poky-linux

cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake -DBUILD_SHARED_LIBS=ON –build –config Release ..

make -j$(nproc)

CMakeLists.txt

cmake_minimum_required(VERSION 2.8.12)

get_directory_property(has_parent PERENT_DIRECTORY)
if(NOT has_parent)
    set(DLIB_IN_PROJECT_BUILD false)
endif()
add_subdirectory(dlib)

toolchain.cmake

# this is required
SET(CMAKE_SYSTEM_NAME Linux)

# specify the cross compiler
SET(CMAKE_C_COMPILER   /opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-gcc)
SET(CMAKE_CXX_COMPILER /opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++)

SET(CMAKE_SYSROOT /opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux)

# where is the target environment 
SET(CMAKE_FIND_ROOT_PATH  /opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux)

# specify the compiler flag
SET(CMAKE_C_FLAGS  -O3 -mtune=cortex-a35)
SET(CMAKE_CXX_FLAGS  -std=c++11 -O3 -mtune=cortex-a35)

# search for programs in the build host directories (not necessary)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

ARM板子使用Dlib

build.sh

#!/bin/bash
set -e # Exit immediately if a command exits with a non-zero status.
BuildDir=dlib_build
if [ ! -d "$BuildDir" ]; then
  # Take action if $BuildDir doesn‘t exists. 
  echo "create ${BuildDir}..."
  mkdir -p ${BuildDir}
fi
cd ${BuildDir}

echo "building face_detection_dlib_hog.cpp"
export LD_LIBRARY_PATH=/opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux/usr/lib
source /opt/fsl-imx-xwayland/4.14-sumo/environment-setup-aarch64-poky-linux
#ToolChain=/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux

cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake -DBUILD_SHARED_LIBS=ON –build –config Release ..

make -j$(nproc)

CMakeLists.txt

cmake_minimum_required(VERSION 2.8.4)  #版本最小为2.8.4
 
PROJECT(dlib_facedetector)   #设置工程名
 
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O2 -DDLIB_JPEG_SUPPORT")
 
IF(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Weverything")
ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
ENDIF()
 
#INCLUDE OPENCV
FIND_PACKAGE(OpenCV REQUIRED)
INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS})
message(STATUS "Opencv include dir found at ${OpenCV_INCLUDE_DIRS}")
 
#包含头文件
INCLUDE_DIRECTORIES(/home/robert/DeepLearning/NXP-imx8QX/CompileResult/dlib-19.19.0) #dlib根目录地址
LINK_DIRECTORIES(/home/robert/DeepLearning/NXP-imx8QX/CompileResult/dlib-19.19.0/dlib_build/dlib/) #dlib编译后bulid下dlib地址
 
#生产类似于.exe的可执行文件
ADD_EXECUTABLE(${PROJECT_NAME} face_detection_dlib_hog.cpp)
#链接库
TARGET_LINK_LIBRARIES(${PROJECT_NAME} dlib ${OpenCV_LIBS})
#TARGET_LINK_LIBRARIES(dlib_detector libjpeg.so)

toolchain.cmake

# this is required
SET(CMAKE_SYSTEM_NAME Linux)

# specify the cross compiler
SET(CMAKE_C_COMPILER   /opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-gcc)
SET(CMAKE_CXX_COMPILER /opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++)

SET(CMAKE_SYSROOT /opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux)

# where is the target environment 
SET(CMAKE_FIND_ROOT_PATH  /opt/fsl-imx-xwayland/4.14-sumo/sysroots/aarch64-poky-linux)

# specify the compiler flag
SET(CMAKE_C_FLAGS  -O3 -mtune=cortex-a35)
SET(CMAKE_CXX_FLAGS  -std=c++11 -O3 -mtune=cortex-a35)

# search for programs in the build host directories (not necessary)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)