c++ - 未在此范围内声明的 Opencv 变量

Question

我刚刚开始尝试 opencv。并在我的另一台电脑(有两台电脑)上成功运行了该程序。

我已经按照与已成功构建的计算机相同的安装步骤进行操作，但是在我完成 cmake 和 make 之后，它提示下面的错误消息是行不通的 构建项目。

在官方网站上测试这个例子: http://docs.opencv.org/doc/tutorials/imgproc/histograms/template_matching/template_matching.html#code

/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:11:22: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
 char* image_window = "Source Image";
                      ^
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:12:23: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
 char* result_window = "Result window";
                       ^
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp: In function ‘int main(int, char**)’:
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:28:30: error: ‘CV_WINDOW_AUTOSIZE’ was not declared in this scope
   namedWindow( image_window, CV_WINDOW_AUTOSIZE );
                              ^
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:32:26: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
   char* trackbar_label = "Method: \n 0: SQDIFF \n 1: SQDIFF NORMED \n 2: TM CCORR \n 3: TM CCORR NORMED \n 4: TM COEFF \n 5: TM COEFF NORMED";
                          ^
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp: In function ‘void MatchingMethod(int, void*)’:
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:68:24: error: ‘CV_TM_SQDIFF’ was not declared in this scope
   if( match_method  == CV_TM_SQDIFF || match_method == CV_TM_SQDIFF_NORMED )
                        ^
/home/howard/Documents/opencv/opencv-sample/template_match/template_match.cpp:68:56: error: ‘CV_TM_SQDIFF_NORMED’ was not declared in this scope
   if( match_method  == CV_TM_SQDIFF || match_method == CV_TM_SQDIFF_NORMED )
                                                        ^
make[2]: *** [CMakeFiles/template_match.dir/template_match.cpp.o] Error 1
make[1]: *** [CMakeFiles/template_match.dir/all] Error 2
make: *** [all] Error 2

有人知道发生了什么吗？我该如何解决？

Answer 1

我发现问题了，因为我安装了一个不稳定的版本，你不应该从 repo 安装 opencv https://github.com/Itseez/openc/直接转到发布版本并下载最新版本。