OpenCV矩阵函数的例外 [英] An exception on OpenCV matrix Function

问题描述

我是OpenCV的新手，我即将用它完成我的第一个大型程序.实际上，如果没有发生令人讨厌的异常，我将是这样.这里是: OpenCV错误:标记错误(参数或结构字段)(无法识别或不支持) ed数组类型)在未知函数中，文件........ \ ocv \ opencv \ src \ cxcore \ cxarr ay.cpp，第2476行 这是发生异常的行: cvMatMul(& matIntrinsec，& matExtrinsec，& result); 对于本主题来说，了解这三个矩阵的乘积可能也很重要:(因为也许我只是在对它们做一些愚蠢的事情)

I am quite a newbie on OpenCV, and I am just about finished my first big program with it. Actually, I would be if a nasty exception wasn't happening. Here it is: OpenCV Error: Bad flag (parameter or structure field) (Unrecognized or unsupport ed array type) in unknown function, file ........\ocv\opencv\src\cxcore\cxarr ay.cpp, line 2476 And here is the line in which the exception happens: cvMatMul(&matIntrinsec, &matExtrinsec, &result); It might also be important for the topic to know what are these three matrixes being multiplied:(cause maybe I am just doing something stupid with them)

基本上，对于matIntrinsec和matExtrinsec，我从文件中读取值，该文件工作正常，我已经对其进行了测试.然后将值放入二维数组中，然后使用CvMat函数构建矩阵

Basically for matIntrinsec and matExtrinsec, I read values off a file, which is working just fine, I've tested it already. And I put the values in a two dimentional array and then using the CvMat function to build the matrix

cvInitMatHeader(& matIntrinsec，3，3，CV_64FC1，this-> intrinsecos);

cvInitMatHeader(&matIntrinsec, 3, 3,CV_64FC1 , this->intrinsecos);

cvInitMatHeader(& matExtrinsec，3，3，CV_64FC1，this-> extrinsecos);

cvInitMatHeader(&matExtrinsec, 3, 3,CV_64FC1 , this->extrinsecos);

至于结果"参数，它基本上是一个统一的CvMat变量，用于接收来自乘法的结果:

As for the "result" parameter, its basically an unitialized CvMat variable to receive the result from the multiplication:

CvMat结果；

很抱歉，这个问题很愚蠢.但是请帮助我！

I am very sorry if the question is silly. But please help me!

推荐答案

使用OpenCV的C API时，必须手动将函数的目标"参数初始化.由于您知道输出的大小，因此可以使用cvCreateMat()轻松地做到这一点.或者，您可以切换到C ++ API，在该API中，函数会使用cv::Mat::create()函数自动分配目标矩阵.

When using OpenCV's C API, you must manually initialize the "destination" parameters to functions. Since you know the size of the output, you can easily do so with cvCreateMat(). Alternatively, you could switch to the C++ API, in which functions automatically allocate destination matrices with the cv::Mat::create() function.

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