OpenCV 3.0 OpenCL UMat添加错误

Question

我正在尝试为OpenCL使用OpenCV（3.0 beta）transparant API，但我对简单操作（至少对于加法和减法）有奇怪的编译错误。

以下是一个示例代码：

#include <opencv2/core.hpp>
#include <opencv2/core/ocl.hpp>
#include <iostream>

using namespace std;
using namespace cv;

Mat temp;

int main() {

    // activating opencl
    ocl::setUseOpenCL(true);

    UMat mat1 = UMat::ones(3,4,CV_32F);
    UMat mat2 = UMat::ones(3,4,CV_32F);
    UMat mat3;
    mat3 = mat1 + mat2;
    mat3.copyTo(temp);
    cout << "mat3 = " << endl << " " << temp << endl << endl;
}

我收到了这个错误：

/home/matthieu/git/stages/singapore/opencv_perf_tests/opencl_test.cpp: In function ‘int main()’:
/home/matthieu/git/stages/singapore/opencv_perf_tests/opencl_test.cpp:19:17: error: no match for ‘operator+’ (operand types are ‘cv::UMat’ and ‘cv::UMat’)
    mat3 = mat1 + mat2;
                ^

这与减法相同。 我无法找到任何有同样错误的人。我做错了吗？