Ubuntu OpenCV安装和设置（Qt5？）

新的Linux用户。操作系统：Ubuntu 14.04安装：OpenCV 2.4.9

我正在尝试安装OpenCV，以便在代码块（或其他IDE）上使用。 我已经遵循（或实际上试图遵循）以下页面上的每一条说明：

我第一次使用 包括提供的脚本

然后

最后

我甚至看到 但我甚至不知道答案是什么意思，更不用说它是否有效了，因为它显然不适用于问题OP

这就是运行脚本时，终端输出中出现错误的地方：

CMake Warning at cmake/OpenCVFindLibsGUI.cmake:18 (find_package):
By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5Core", but
CMake did not find one.

Could not find a package configuration file provided by "Qt5Core" with any
of the following names:

Qt5CoreConfig.cmake
qt5core-config.cmake

Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set
"Qt5Core_DIR" to a directory containing one of the above files.  If
"Qt5Core" provides a separate development package or SDK, be sure it has
been installed.
Call Stack (most recent call first):
CMakeLists.txt:466 (include)


CMake Warning at cmake/OpenCVFindLibsGUI.cmake:19 (find_package):
By not providing "FindQt5Gui.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5Gui", but
CMake did not find one.

Could not find a package configuration file provided by "Qt5Gui" with any
of the following names:

  Qt5GuiConfig.cmake
  qt5gui-config.cmake

Add the installation prefix of "Qt5Gui" to CMAKE_PREFIX_PATH or set
"Qt5Gui_DIR" to a directory containing one of the above files.  If "Qt5Gui"
provides a separate development package or SDK, be sure it has been
installed.
Call Stack (most recent call first):
CMakeLists.txt:466 (include)


CMake Warning at cmake/OpenCVFindLibsGUI.cmake:20 (find_package):
By not providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"Qt5Widgets", but CMake did not find one.

Could not find a package configuration file provided by "Qt5Widgets" with
any of the following names:

  Qt5WidgetsConfig.cmake
  qt5widgets-config.cmake

Add the installation prefix of "Qt5Widgets" to CMAKE_PREFIX_PATH or set
"Qt5Widgets_DIR" to a directory containing one of the above files.  If
"Qt5Widgets" provides a separate development package or SDK, be sure it has
been installed.

Call Stack (most recent call first):

  CMakeLists.txt:466 (include)





CMake Warning at cmake/OpenCVFindLibsGUI.cmake:21 (find_package):

  By not providing "FindQt5Test.cmake" in CMAKE_MODULE_PATH this project has

  asked CMake to find a package configuration file provided by "Qt5Test", but

  CMake did not find one.



  Could not find a package configuration file provided by "Qt5Test" with any

  of the following names:

Qt5TestConfig.cmake
qt5test-config.cmake

Add the installation prefix of "Qt5Test" to CMAKE_PREFIX_PATH or set
"Qt5Test_DIR" to a directory containing one of the above files.  If
"Qt5Test" provides a separate development package or SDK, be sure it has
been installed.
Call Stack (most recent call first):
  CMakeLists.txt:466 (include)


CMake Warning at cmake/OpenCVFindLibsGUI.cmake:22 (find_package):
  By not providing "FindQt5Concurrent.cmake" in CMAKE_MODULE_PATH this
  project has asked CMake to find a package configuration file provided by
  "Qt5Concurrent", but CMake did not find one.

  Could not find a package configuration file provided by "Qt5Concurrent"
  with any of the following names:

    Qt5ConcurrentConfig.cmake
    qt5concurrent-config.cmake

  Add the installation prefix of "Qt5Concurrent" to CMAKE_PREFIX_PATH or set
  "Qt5Concurrent_DIR" to a directory containing one of the above files.  If
  "Qt5Concurrent" provides a separate development package or SDK, be sure it
  has been installed.
  Call Stack (most recent call first):
  CMakeLists.txt:466 (include)


qmake: could not exec '/usr/lib/x86_64-linux-gnu/qt4/bin/qmake': No such file     or         directory
CMake Error at /usr/share/cmake-2.8/Modules/FindQt4.cmake:1386 (message):
  Found unsuitable Qt version "" from NOTFOUND, this code requires Qt 4.x
Call Stack (most recent call first):
  cmake/OpenCVFindLibsGUI.cmake:34 (find_package)
  CMakeLists.txt:466 (include)


-- Configuring incomplete, errors occurred!
See also "/home/*******/OpenCV/opencv-2.4.9/build/CMakeFiles/CMakeOutput.log".
See also "/home/*******/OpenCV/opencv-2.4.9/build/CMakeFiles/CMakeError.log".

在之前的尝试之后，我在Home中得到了一个名为OpenCV-2.4.9的文件夹OpenCV，其中包含一个zip文件和文件夹

所以“一些”事情已经完成，但还没有一个完整的安装准备好使用。也许更简单的解释是什么

“（引用先前问题的答案） 这是记录在案的： 使用CMake最简单的方法是设置CMake_前缀_路径 环境变量设置为Qt 5的安装前缀 这样做 导出CMAKE_前缀_路径=/home/user/Programs/ 其中引用了编译器等，因此此完整路径有效： /主页/用户/程序//bin/qmake “”“”“”“”*

这就是解决这个问题的方法

---

谢谢。（仅供参考，我无法/不知道如何使用此功能，因为我没有programs文件夹，甚至没有user文件夹，建议的terminal命令会抛出一个错误）

我可以通过使用

sudo apt get install qt5 default来解决这个问题

这个答案有点晚了，但是我建议使用QT Creator IDE，它包含了构建应用程序所需的一切。即使是设计师也可以轻松创建用户界面

除此之外，我看到您正在使用Ubuntu14.04，如果您计划阅读和/或编写视频文件，您应该编译 来自源代码的FFmpeg（如果您不这样做，它由于某种原因不起作用）和OpenCV，就像您放弃的链接（可能更改为2.4.10）

然后，在QT Creator中只需转到yourProjectName.pro文件并添加以下行

QT_CONFIG -= no-pkg-config
CONFIG += link_pkgconfig
PKGCONFIG += opencv
CONFIG += c++11
LIBS += -ltbb

---

您不再需要cmake，您可以使用OpenCV快速创建QT应用程序，并且易于调试

在中，如果要在不安装qt5的情况下安装opencv，请通过删除带_QT=ON的-D来更改cmake命令。

1.打开

.bashrc

文件： gedit~/.bashrc

在.bashrc文件末尾添加一行，如下所示：

导出CMAKE_PREFIX_PATH=/usr/local/Qt5.5.1/5.5/gcc_64/lib/CMAKE

source~/.bashrc

然后，它对我有用