我正在尝试从作者网站安装Copy-Move Forgery Detectors and Ground Truth Generator。但是当我使用make命令编译它时，一行特定的verify.cxx给了我一个我无法解决的错误。这是代码的一部分。
序言：
#include <algorithm>
#include <cmath>
#include <cstring>
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <iomanip>
#include <queue>
#include <limits.h>
#include <stdexcept>
#include <cv.h>
#include <highgui.h>
#include "execution.h"
#include "verification.h"
#include "fastsats.h"
...
以下是发生错误的部分：
double avg_dist = 0.0;
for (int i = 0; i < m.rows; i++)
{
avg_dist += cv::norm(m.at<cv::Vec2f>(i,0));
}
avg_dist /= m.rows;
// scale factor
cv::Vec2f scale_factor( sqrt(2.0),sqrt(2.0) );
//where error happens
scale_factor = scale_factor/avg_dist;
最后编译器告诉我的事情：
[ 9%] Building CXX object
cmfd/CMakeFiles/cmfd.dir/verification.cxx.o
/home/anselmo/cmfd_framework/cmfd/verification.cxx: In static member
function ‘static void Verification::normalizeCluster(cv::Mat&,
cv::Mat&)’:
/home/anselmo/cmfd_framework/cmfd/verification.cxx:317:30: error: no
match for ‘operator/’ in ‘scale_factor / avg_dist’
/home/anselmo/cmfd_framework/cmfd/verification.cxx:317:30: note:
candidates are:
/usr/include/opencv2/core/mat.hpp:1252:20: note: cv::MatExpr
cv::operator/(const cv::MatExpr&, const cv::MatExpr&)
/usr/include/opencv2/core/mat.hpp:1252:20: note: no known
conversion for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to
‘const cv::MatExpr&’
/usr/include/opencv2/core/mat.hpp:1251:20: note: cv::MatExpr
cv::operator/(double, const cv::MatExpr&)
/usr/include/opencv2/core/mat.hpp:1251:20: note: no known
conversion for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to
‘double’
/usr/include/opencv2/core/mat.hpp:1250:20: note: cv::MatExpr
cv::operator/(const cv::MatExpr&, double)
/usr/include/opencv2/core/mat.hpp:1250:20: note: no known
conversion for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to
‘const cv::MatExpr&’
/usr/include/opencv2/core/mat.hpp:1249:20: note: cv::MatExpr
cv::operator/(const cv::Mat&, const cv::MatExpr&)
/usr/include/opencv2/core/mat.hpp:1249:20: note: no known conversion
for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to ‘const
cv::Mat&’
/usr/include/opencv2/core/mat.hpp:1248:20: note: cv::MatExpr
cv::operator/(const cv::MatExpr&, const cv::Mat&)
/usr/include/opencv2/core/mat.hpp:1248:20: note: no known conversion
for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to ‘const
cv::MatExpr&’
/usr/include/opencv2/core/mat.hpp:1247:20: note: cv::MatExpr
cv::operator/(double, const cv::Mat&)
/usr/include/opencv2/core/mat.hpp:1247:20: note: no known conversion
for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to ‘double’
/usr/include/opencv2/core/mat.hpp:1246:20: note: cv::MatExpr
cv::operator/(const cv::Mat&, double)
/usr/include/opencv2/core/mat.hpp:1246:20: note: no known conversion
for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to ‘const
cv::Mat&’
/usr/include/opencv2/core/mat.hpp:1245:20: note: cv::MatExpr
cv::operator/(const cv::Mat&, const cv::Mat&)
/usr/include/opencv2/core/mat.hpp:1245:20: note: no known conversion
for argument 1 from ‘cv::Vec2f {aka cv::Vec<float, 2>}’ to ‘const
cv::Mat&’
/usr/include/opencv2/core/operations.hpp:1959:14: note: template<class
_Tp> cv::Scalar_<_Tp> cv::operator/(const cv::Scalar_<_Tp>&, const
cv::Scalar_<_Tp>&)
/usr/include/opencv2/core/operations.hpp:1952:14: note: template<class
_Tp> cv::Scalar_<_Tp> cv::operator/(_Tp, const cv::Scalar_<_Tp>&)
/usr/include/opencv2/core/operations.hpp:1938:17: note: template<class
_Tp> cv::Scalar_<double> cv::operator/(const cv::Scalar_<double>&,
double)
/usr/include/opencv2/core/operations.hpp:1931:16: note: template<class
_Tp> cv::Scalar_<float> cv::operator/(const cv::Scalar_<float>&,
float)
/usr/include/opencv2/core/operations.hpp:1922:14: note: template<class
_Tp> cv::Scalar_<_Tp> cv::operator/(const cv::Scalar_<_Tp>&, _Tp)
/usr/include/opencv2/core/operations.hpp:1373:14: note: template<class
_Tp> cv::Complex<_Tp> cv::operator/(_Tp, const cv::Complex<_Tp>&)
/usr/include/opencv2/core/operations.hpp:1366:14: note: template<class
_Tp> cv::Complex<_Tp> cv::operator/(const cv::Complex<_Tp>&, _Tp)
/usr/include/opencv2/core/operations.hpp:1352:14: note: template<class
_Tp> cv::Complex<_Tp> cv::operator/(const cv::Complex<_Tp>&, const
cv::Complex<_Tp>&)
make[2]: *** [cmfd/CMakeFiles/cmfd.dir/verification.cxx.o] Error 1
make[1]: *** [cmfd/CMakeFiles/cmfd.dir/all] Error 2
make: *** [all] Error 2
似乎原始源代码没有使用正确的opencv函数，但我将'/'替换为'cv :: operator /（）'但它仍然无效。我是opencv的新手，我想知道解决这个问题。
我的opencv版本是2.3.1-7