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kartik2112 / Silatra

This is the server-side of the SiLaTra System. This system is targetted towards the hearing and speech impaired community that use sign language for communicating with each other. But when they communicate with other people outside this community, there is a communication gap. This system is an attempt towards bridging this gap.
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Wrapper functions support for opencv3 #4

Closed kartik2112 closed 6 years ago

kartik2112 commented 6 years ago

Wrapper functions used for sending data from c++ to python and getting back is different for opencv3

kartik2112 commented 6 years ago

I have already found the solution to this problem, the description of which I have mentioned here

izengpan commented 6 years ago

Hello, I have followed your steps to add cv2.cpp and pycompat.hpp in my directory, and then made some changes you've suggested. But it doesn't work. So I want to check 2 points to make sure that I'm rigidly follow your steps.

Removed lines template<> from lines 393, 426 Added line import_array as the first line in body of bool pyopencv_to(PyObject o, Matx<_Tp, m, n>& mx, const char name) and PyObject* pyopencv_from(const Mat& m). This is because if I wasn't adding this, it was resulting in a segmentation fault. So somewhere I found a solution that import_array() is necessary for initializing this.

There are the last 2 steps of your suggestion. The former asked to removed lines 393, 426. It means only 393 and 426 these 2 lines or from 393 to 426? The latter asked to add " import_array ". But " import_array()" were also mentioned. Which one should I use? if" import_array()" is the right one, should I add ";" after the "()"?

Thanks for your reply~

kartik2112 commented 6 years ago

Check out this folder from our Silatra repository. This is a working version. It is being used in this repository. The filename cv2 is changed to cv_cpp_py_interface for convenience of understanding in this repository

izengpan commented 6 years ago

Thanks for your reply. I used the cv_cpp_py_interface.cpp to cover cv2.cpp, all the files in the new folder you mentioned were included in my codes' But the same problem occurred again. Four errors always here! `` error1: cannot declare variable ‘g_numpyAllocator’ to be of abstract type ‘NumpyAllocator’ NumpyAllocator g_numpyAllocator;

error2: ‘class cv::Mat’ has no member named ‘refcount’ m.refcount = refcountFromPyObject(o);

error3: ‘class cv::Mat’ has no member named ‘refcount’ if(!p->refcount || p->allocator != &g_numpyAllocator)

error4: ‘class cv::Mat’ has no member named ‘refcount’ return pyObjectFromRefcount(p->refcount); `` Are there any other changes should I make? Thanks again.

kartik2112 commented 6 years ago

Please check the file. I have replaced p->refcount with p->u. This should solve errors 3, 4. No idea why you are getting the other 2 errors.