win7环境下安装dlib人脸检测包

背景

项目中需要用到dlib包进行人脸检测与关键点提取，之前都是在mac或者linux系统下进行的，这次需要在Windows系统下进行。在mac或者linux系统下，安装非常简单，使用以下命令即可

pip install dlib

但是在Windows系统下使用这个命令会报错：

Collecting dlibDownloading https://files.pythonhosted.org/packages/05/57/e8a8caa3c89a27f80bc78da39c423e2553f482a3705adc619176a3a24b36/dlib-19.17.0.tar.gz (3.4MB)|████████████████████████████████| 3.4MB 14kB/s
Building wheels for collected packages: dlibBuilding wheel for dlib (setup.py) ... errorERROR: Complete output from command 'f:\python36\python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\\Users\\fu\\AppData\\Local\\Temp\\pip-install-t50q34ym\\dlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\fu\AppData\Local\Temp\pip-wheel-g2i4oztb' --python-tag cp36:ERROR: running bdist_wheelrunning buildrunning build_pypackage init file 'dlib\__init__.py' not found (or not a regular file)running build_extTraceback (most recent call last):File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 120, in get_cmake_versionout = subprocess.check_output(['cmake', '--version'])File "f:\python36\lib\subprocess.py", line 356, in check_output**kwargs).stdoutFile "f:\python36\lib\subprocess.py", line 423, in runwith Popen(*popenargs, **kwargs) as process:File "f:\python36\lib\subprocess.py", line 729, in __init__restore_signals, start_new_session)File "f:\python36\lib\subprocess.py", line 1017, in _execute_childstartupinfo)FileNotFoundError: [WinError 2] 系统找不到指定的文件。During handling of the above exception, another exception occurred:Traceback (most recent call last):File "<string>", line 1, in <module>File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 261, in <module>'Topic :: Software Development',File "f:\python36\lib\site-packages\setuptools\__init__.py", line 143, in setupreturn distutils.core.setup(**attrs)File "f:\python36\lib\distutils\core.py", line 148, in setupdist.run_commands()File "f:\python36\lib\distutils\dist.py", line 955, in run_commandsself.run_command(cmd)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "f:\python36\lib\site-packages\wheel\bdist_wheel.py", line 192, in runself.run_command('build')File "f:\python36\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "f:\python36\lib\distutils\command\build.py", line 135, in runself.run_command(cmd_name)File "f:\python36\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 129, in runcmake_version = self.get_cmake_version()File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 125, in get_cmake_version"\n*******************************************************************\n")RuntimeError:*******************************************************************CMake must be installed to build the following extensions: dlib*******************************************************************----------------------------------------ERROR: Failed building wheel for dlibRunning setup.py clean for dlib
Failed to build dlib
Installing collected packages: dlibRunning setup.py install for dlib ... errorERROR: Complete output from command 'f:\python36\python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\\Users\\fu\\AppData\\Local\\Temp\\pip-install-t50q34ym\\dlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\fu\AppData\Local\Temp\pip-record-4kwg7hfv\install-record.txt' --single-version-externally-managed --compile:ERROR: running installrunning buildrunning build_pypackage init file 'dlib\__init__.py' not found (or not a regular file)running build_extTraceback (most recent call last):File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 120, in get_cmake_versionout = subprocess.check_output(['cmake', '--version'])File "f:\python36\lib\subprocess.py", line 356, in check_output**kwargs).stdoutFile "f:\python36\lib\subprocess.py", line 423, in runwith Popen(*popenargs, **kwargs) as process:File "f:\python36\lib\subprocess.py", line 729, in __init__restore_signals, start_new_session)File "f:\python36\lib\subprocess.py", line 1017, in _execute_childstartupinfo)FileNotFoundError: [WinError 2] 系统找不到指定的文件。During handling of the above exception, another exception occurred:Traceback (most recent call last):File "<string>", line 1, in <module>File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 261, in <module>'Topic :: Software Development',File "f:\python36\lib\site-packages\setuptools\__init__.py", line 143, in setupreturn distutils.core.setup(**attrs)File "f:\python36\lib\distutils\core.py", line 148, in setupdist.run_commands()File "f:\python36\lib\distutils\dist.py", line 955, in run_commandsself.run_command(cmd)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "f:\python36\lib\site-packages\setuptools\command\install.py", line 61, in runreturn orig.install.run(self)File "f:\python36\lib\distutils\command\install.py", line 545, in runself.run_command('build')File "f:\python36\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "f:\python36\lib\distutils\command\build.py", line 135, in runself.run_command(cmd_name)File "f:\python36\lib\distutils\cmd.py", line 313, in run_commandself.distribution.run_command(command)File "f:\python36\lib\distutils\dist.py", line 974, in run_commandcmd_obj.run()File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 129, in runcmake_version = self.get_cmake_version()File "C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\setup.py", line 125, in get_cmake_version"\n*******************************************************************\n")RuntimeError:*******************************************************************CMake must be installed to build the following extensions: dlib*******************************************************************----------------------------------------
ERROR: Command "'f:\python36\python.exe' -u -c 'import setuptools, tokenize;__file__='"'"'C:\\Users\\fu\\AppData\\Local\\Temp\\pip-install-t50q34ym\\dlib\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\fu\AppData\Local\Temp\pip-record-4kwg7hfv\install-record.txt' --single-version-externally-managed --compile" failed with error code 1 in C:\Users\fu\AppData\Local\Temp\pip-install-t50q34ym\dlib\
WARNING: You are using pip version 19.1, however version 19.1.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

原因是由于dlib需要使用c++进行编译，让你首先安装cmake。

解决方法

方法一：非常费劲

Step 1: Install Visual Studio 2015
Step 2: Install CMake v3.8.2
Step 3: Install Anaconda 3
Step 4: Download Dlib
Step 5: Build Dlib library
Step 6: Update user environment variable – dlib_DIR
---
具体参考：https://www.learnopencv.com/install-dlib-on-windows/

方法二：安装dlib前需要先安装cmake 和boost。然后才能正确安装dlib

pip install boost
pip install cmake
pip install dib

方法三：通过对应版本的dlib的whl文件进行安装

whl格式本质上是一个压缩包，里面包含了py文件，以及经过编译的pyd文件。使得可以在不具备编译环境的情况下，选择合适自己的python环境进行安装。
安装方法很简单，进入命令行输入

pip install xxxx.whl

或者如果是升级

pip install -U xxxx.whl

这里我们使用以下命令进行安装，前提是下载对应文件，跳转到对应的文件夹下：

pip install dlib-19.17.99-cp37-cp37m-win_amd64.whl

whl文件下载地址：
链接: https://pan.baidu.com/s/1MKqW7WH2XP-J8MOLeq3cDA
提取码: rfh8

参考：

https://www.learnopencv.com/install-dlib-on-windows/
https://blog.csdn.net/sinat_38530349/article/details/86742523?utm_medium=distribute.pc_relevant.none-task-blog-baidujs-1
https://blog.csdn.net/xiao_lxl/article/details/90168962

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win7环境下安装dlib人脸检测包

背景

解决方法

参考：

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