安装人脸识别库出错

Question

在Windows中安装face-recognition时，我得到了以下回溯：

C:\Windows\system32>pip install face-recognition
Collecting face-recognition
  Using cached https://files.pythonhosted.org/packages/3f/ed/ad9a28042f373d4633fc8b49109b623597d6f193d3bbbef7780a5ee8eef2/face_recognition-1.2.3-py2.py3-none-any.whl
Requirement already satisfied: numpy in c:\program files\python37\lib\site-packages (from face-recognition) (1.16.4)
Requirement already satisfied: Click>=6.0 in c:\program files\python37\lib\site-packages (from face-recognition) (7.0)
Collecting dlib>=19.7 (from face-recognition)
  Using cached https://files.pythonhosted.org/packages/05/57/e8a8caa3c89a27f80bc78da39c423e2553f482a3705adc619176a3a24b36/dlib-19.17.0.tar.gz
Requirement already satisfied: Pillow in c:\program files\python37\lib\site-packages (from face-recognition) (6.0.0)
Requirement already satisfied: face-recognition-models>=0.3.0 in c:\program files\python37\lib\site-packages (from face-recognition) (0.3.0)
Installing collected packages: dlib, face-recognition
  Running setup.py install for dlib ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\program files\python37\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\dlib\\setup.py'"'"'; __file__='"'"'C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\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\Erfan\AppData\Local\Temp\pip-record-7hhzklek\install-record.txt' --single-version-externally-managed --compile
         cwd: C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\
    Complete output (57 lines):
    running install
    running build
    running build_py
    package init file 'dlib\__init__.py' not found (or not a regular file)
    running build_ext
    Building extension for Python 3.7.2 (tags/v3.7.2:9a3ffc0492, Dec 23 2018, 23:09:28) [MSC v.1916 64 bit (AMD64)]
    Invoking CMake setup: 'cmake C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\tools\python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\build\lib.win-amd64-3.7 -DPYTHON_EXECUTABLE=c:\program files\python37\python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\build\lib.win-amd64-3.7 -A x64'
    -- Building for: NMake Makefiles
    CMake Error in CMakeLists.txt:
      Generator

        NMake Makefiles

      does not support platform specification, but platform

        x64

      was specified.


    CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
    CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
    -- Configuring incomplete, errors occurred!
    See also "C:/Users/Erfan/AppData/Local/Temp/pip-install-kkt88o4h/dlib/build/temp.win-amd64-3.7/Release/CMakeFiles/CMakeOutput.log".
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\setup.py", line 261, in <module>
        'Topic :: Software Development',
      File "c:\program files\python37\lib\site-packages\setuptools\__init__.py", line 143, in setup
        return distutils.core.setup(**attrs)
      File "c:\program files\python37\lib\distutils\core.py", line 148, in setup
        dist.run_commands()
      File "c:\program files\python37\lib\distutils\dist.py", line 966, in run_commands
        self.run_command(cmd)
      File "c:\program files\python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "c:\program files\python37\lib\site-packages\setuptools\command\install.py", line 61, in run
        return orig.install.run(self)
      File "c:\program files\python37\lib\distutils\command\install.py", line 545, in run
        self.run_command('build')
      File "c:\program files\python37\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "c:\program files\python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "c:\program files\python37\lib\distutils\command\build.py", line 135, in run
        self.run_command(cmd_name)
      File "c:\program files\python37\lib\distutils\cmd.py", line 313, in run_command
        self.distribution.run_command(command)
      File "c:\program files\python37\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\setup.py", line 135, in run
        self.build_extension(ext)
      File "C:\Users\Erfan\AppData\Local\Temp\pip-install-kkt88o4h\dlib\setup.py", line 172, in build_extension
        subprocess.check_call(cmake_setup, cwd=build_folder)
      File "c:\program files\python37\lib\subprocess.py", line 347, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['cmake', 'C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\dlib\\tools\\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\dlib\\build\\lib.win-amd64-3.7', '-DPYTHON_EXECUTABLE=c:\\program files\\python37\\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\dlib\\build\\lib.win-amd64-3.7', '-A', 'x64']' returned non-zero exit status 1.
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\program files\python37\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\dlib\\setup.py'"'"'; __file__='"'"'C:\\Users\\Erfan\\AppData\\Local\\Temp\\pip-install-kkt88o4h\\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\Erfan\AppData\Local\Temp\pip-record-7hhzklek\install-record.txt' --single-version-externally-managed --compile Check the logs for full command output.

Answer 1

看起来你在安装dlib时遇到了这个错误，dlib是人脸识别的先决条件。由于您正在尝试将其安装在windows上，因此您必须确保某些前提条件。1.您需要下载cmake并安装它，并确保在您的环境变量中设置了路径。2.您需要安装VS 2015/2017。到目前为止，我还不能让dlib与VS2019一起工作，我不确定它是否工作得很好，因此使用2015/2017。然后从他们的github链接下载dlib并手动构建库，而不是执行pip安装。一旦安装了dlib，您就可以使用pip安装人脸识别了。