编译opencv示例:未知cmake命令ocv_check_dependencies [英] Compiling opencv samples: unknown cmake command ocv_check_dependencies

问题描述

我正在尝试构建源包附带的 OpenCV 示例，我得到以下内容:

I am trying to build the OpenCV samples which come with the source package and I get the following:

CMake Error at CMakeLists.txt:10 (ocv_check_dependencies):
  Unknown CMake command "ocv_check_dependencies".

我确实使用

cmake .
make
sudo make install

并且我得到了一个教程片段(因此我认为它作为库正确安装).但是，编译示例不起作用.

and I got a tutorial snippet working (thus I suppose it is installed correctly as a library). However, compiling the samples does not work.

我想我必须以某种方式将 CMake 配置为具有ocv_check_dependencies"——但如何配置?我迷路了！

I guess I have to somehow configure CMake to have "ocv_check_dependencies" - but how? I am lost!

推荐答案

我知道了.

为了构建示例，必须通过 -D 提供 cmake 的默认配置来更改它.我做错的是我试图从 samples 目录中执行 cmake.

In order to build the samples one has to change the default configuration for cmake by providing it via -D. What I did wrong was that I tried to execute cmake from within the samples directory.

构建示例的正确方法是像这样调用 cmake(从解压存档的根目录中):

The proper way to build the samples is invoking cmake like so (from within the root directory of the unpacked archive):

cmake -DBUILD_SAMPLES .

这将打开样本.可以继续使用make，make install than.构建后可以在bin中找到示例.

which will turn samples ON. One can proceed using make, make install than. The samples can be found in bin after building.

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