OpenCV InputArray/输出数组 [英] OpenCV InputArray/OutputArray
问题描述
我刚刚编译了OpenCV 2.3的最新版本.他们决定将所有Matrix输入/输出更改为InputArray/OutputArray，使一切变得混乱.在OpenCV 2.2下运行良好的同一段代码现在已一文不值.
I had just compile the last version of OpenCV 2.3. And their decision to change all Matrix input/output into InputArray/OutputArray messes everything up. The same piece of code that was working well under OpenCV 2.2 is now worthless.
我可以接受两种解决方案:
There's two solutions I would accept:
-
告诉我可以在哪里下载适用于Linux的OpenCV 2.2(包括所有模块)，重要的一点是，不要缺少针脚(我试图找到合适的针脚，但是针脚总是会丢失！).
Showing me where I can download OpenCV 2.2 for Linux, with all modules, it's important that stitching is not missing (I tried to find a suitable one, but stitching is always missing!).
帮我解决下面要描述的问题.
Help me solve what I'm describing below.
OpenCV 2.4(即使仍为beta版)已修复此问题，我应该改用此版本！
OpenCV 2.4, even if still beta, has fixed this and I should move to this version instead!
我收到此异常消息:
OpenCV Error: Assertion failed (k == STD_VECTOR_MAT) in getMat, file /home/widgg/opencv/trunk/modules/core/src/matrix.cpp, line 928
terminate called after throwing an instance of 'cv::Exception'
what(): /home/widgg/opencv/trunk/modules/core/src/matrix.cpp:928: error: (-215) k == STD_VECTOR_MAT in function getMat
在gdb中，这是堆栈:
In gdb, this is the stack:
#0 0x00007ffff5df3445 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff5df6bab in __GI_abort () at abort.c:91
#2 0x00007ffff674169d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3 0x00007ffff673f846 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4 0x00007ffff673f873 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5 0x00007ffff673f96e in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#6 0x00007ffff77fca51 in cv::error(cv::Exception const&) () from /usr/local/lib/libopencv_core.so.2.3
#7 0x00007ffff791306d in cv::_InputArray::getMat(int) const () from /usr/local/lib/libopencv_core.so.2.3
#8 0x00007ffff796064c in cv::perspectiveTransform(cv::_InputArray const&, cv::_OutputArray const&, cv::_InputArray const&) () from /usr/local/lib/libopencv_core.so.2.3
最后，这是我调用cv :: perspectiveTransform时的代码:
finally, here's my code when I'm calling cv::perspectiveTransform:
std::vector<cv::Point2f> corners(4);
cv::Mat cur_image = imread("my_image.jpg");
std::vector<cv::Point2f> img_corners(4);
img_corners[0] = cv::Point2f(0, 0);
img_corners[1] = cv::Point2f(cur_image.cols, 0);
img_corners[2] = cv::Point2f(cur_image.cols, cur_image.rows);
img_corners[3] = cv::Point2f(0, cur_image.rows);
cur_image.release();
cv::perspectiveTransform(img_corners, corners, m_transf);
cv :: Mat m_transf =(Mat_< double>(3,3)< 1，0，0，0，1，0，0，0，1);那就是它的值第一次使用，它在那个地方崩溃了！
And cv::Mat m_transf = (Mat_ < double > (3,3) << 1, 0, 0, 0, 1, 0, 0, 0, 1);, that's its value when it's first used, and it crashes at that place!
我对cv :: FindHomography有类似的问题.问题是代码在昨天和现在正确执行，而这InputArray/OuputArray事情搞砸了一切.
I have a similar problem with cv::FindHomography. The thing is that code was executing properly yesterday and now, this InputArray/OuputArray thing screw everything up.
这很烦人，请帮忙！
Also, I found this report here: OpenCV 2.2 Vs. 2.3 and it's not a good sign! There should be a workaround for this!
推荐答案
似乎您已经安装了两个版本的OpenCV，并且链接程序尝试使用的链接版本与用于编译代码的链接版本不同.
It seems you have two versions of OpenCV installed, and the linker tries to use a different one for linking than the one used to compile your code.
最简单的方法是删除所有其他OpenCV版本，然后可能出现的错误库路径会更加明确(somelib.so缺失)
The simplest way is to remove all the other OpenCV versions, and then a possible wrong library path will be more explicit (somelib.so missing)
或者，检查所有设置PATH，链接器标志和包含文件夹，以确保通过包含/完成/链接步骤使用的是相同版本.
Or, check all the settings PATH, linker flags and include folders to make sure you are using the same version through the include/complile/link steps
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