正确包括在opencv 2.3中使用新的C ++ API [英] Correct includes to use the new C++ API in opencv 2.3

问题描述

我熟悉旧的opencv 1，并且长时间使用它的C函数。但是，我在切换到opencv 2.3的C ++ API时遇到了问题

I'm familiar with the old opencv 1, and used its C functions for a long time. However, I have problems with switching to the C++ API of opencv 2.3

我下载了最新的稳定版本（2.3.1），但其中的示例使用了旧的C函数，或者包括opencv2 / highgui / highgui.hpp。

I downloaded the latest stable version (2.3.1), but the examples in it use either the old C functions, or include "opencv2/highgui/highgui.hpp".

问题是，我的 include / opencv2 目录中唯一的文件是 opencv.hpp 。如果我包含它，有很多路径是不正确的。
opencv.hpp 内有以下内容：

The problem is, the only file in my include/opencv2 directory is opencv.hpp. If I include that, there are a lot of paths which are incorrect. Inside of opencv.hpp there are such things as:

#include "opencv2/core/core_c.h"
#include "opencv2/core/core.hpp"
#include "opencv2/flann/miniflann.hpp"
#include "opencv2/imgproc/imgproc_c.h"

等。

但是，在我的opencv目录中，包含文件位于以下文件夹中：

However, in my opencv directory, the include files are in folders like:

modules/core/include/opencv2/core
modules/flann/include/opencv2/flann
modules/imgproc/include/opencv2/imgproc

等。

那么，如果我必须手动指定包含路径， opencv.hpp 的重点是什么？每一个标题？在opencv网站（http://opencv.willowgarage.com）上，教程要么已经过时了，要么根本没有解决这个问题，直接跳到算法上。

So, what is the point of that opencv.hpp, if I have to specify the include path manually for every single header? On the opencv site (http://opencv.willowgarage.com) the tutorials are either hopelessly outdated, or they don't address this question at all and jump straight to the algorithms.

编辑：我正在使用Qt，如果这很重要的话。我从 http://code.opencv.org/svn/opencv/branches下载了源代码/2.3/ 并成功构建。

I'm using Qt, if that matters. I downloaded the source from http://code.opencv.org/svn/opencv/branches/2.3/ and built it successfully.

编辑2：是的，这很重要。其中一个Qt标头丢失了，因此opencv的构建过程跳过了几个库。

Yes, it mattered. One of the Qt headers was missing, and so the building process of opencv skipped a few libraries.

推荐答案

我想我找到了问题。我有（4.6.3）的Qt源在 corelib / global 中没有 qconfig.h ，所以当我内置 opencv ，并非所有库都已创建，并且未复制标头。

I think I found the problem. The Qt source I have (4.6.3) does not have qconfig.h in corelib/global, so when I built opencv, not all libraries were created, and the headers were not copied.

就是这样，遇到同样问题的其他人也会知道并且不会浪费时间寻找解决方案： qtconfig.h 不包含在Qt源代码分发中。你必须自己创建该文件，其目录中有许多模板，要么重命名其中一个（ qconfig-large ， qconfig-minimal 等），或者只是创建一个空的 qconfig.h 。

Just so others with the same problem will know it and not waste hours finding for a solution: qtconfig.h is not included in the Qt source distribution. You have to create that file yourself, there are a number of templates in its directory, either rename one of them (qconfig-large, qconfig-minimal, etc.), or just create an empty qconfig.h.

编辑：我不建议任何人这样。我下载创建了一个mingw make，重新下载了所有内容，现在它可以正常工作了。我必须注意我构建opencv的mingw版本与Qt使用的版本相同。

I don't recommend this way to anyone. I downloaded created a mingw make, redownloaded everything, and it works now. I had to take care that the mingw version I built opencv is the same as the one used with Qt.

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