Added test for UMat MinMaxLoc

tests/cvextern_test/cvextern_test.cpp

@@ -52,6 +52,16 @@ void Test_3D_cross_product()
    cout <<"Test cvPoint3D64f cross product: " << (pass ? "Passed" : "Failed") << std::endl;
 }
 
+void Test_UMat_MinMaxLoc()
+{
+	cv::UMat m(5, 5, CV_8UC1);
+	m.setTo(255);
+	double minVal, maxVal;
+	cv::Point minLoc, maxLoc;
+	cv::minMaxLoc(m, &minVal, &maxVal, &minLoc, &maxLoc);
+	cout << "minVal: " << minVal << "; maxVal: " << maxVal << std::endl;
+}
+
 void Test_double_MulS()
 {
    double val0[]  = {0.1, 0.2, 0.3};
@@ -177,25 +187,27 @@ void Test_MatchTemplate()
 
 void Test_SeamlessClone(int size)
 {
-	cv::Mat source = cv::imread("C:\\work\\sourceforge\\emgucv\\libs\\x64\\lena.jpg");
-	//cv::Mat source = cv::imread(".\\lena.jpg");
-	cv::Mat img1;
-	cv::resize(source, img1, cv::Size(size, size));
-	cv::Mat img2;
-	cv::resize(source, img2, cv::Size(size / 2, size / 2));
-	cv::Mat mask(img2.size(), CV_8UC1);
-	int rows = mask.rows;
-	int cols = mask.cols;
-	int radius = (int)( (std::min)( rows, cols ) / 2.0 );
-	cv::circle(mask, cv::Point(mask.rows / 2, mask.cols / 2), radius, cv::Scalar(255), -1);
-
-	cv::TickMeter meter;
-	cv::Mat blend(img1.size(), CV_8UC3);
-	meter.start();
-	cv::seamlessClone(img2, img1, mask, cv::Point(mask.rows / 2, mask.cols / 2), blend, cv::NORMAL_CLONE);
-	meter.stop();
-	cout << "Seamless clone time: " << meter.getTimeMilli() << " milliseconds. " << std::endl;
-	
+	//cv::Mat source = cv::imread("C:\\work\\sourceforge\\emgucv\\libs\\x64\\lena.jpg");
+	cv::Mat source = cv::imread(".\\lena.jpg");
+	if (!source.empty())
+	{
+		cv::Mat img1;
+		cv::resize(source, img1, cv::Size(size, size));
+		cv::Mat img2;
+		cv::resize(source, img2, cv::Size(size / 2, size / 2));
+		cv::Mat mask(img2.size(), CV_8UC1);
+		int rows = mask.rows;
+		int cols = mask.cols;
+		int radius = (int)((std::min)(rows, cols) / 2.0);
+		cv::circle(mask, cv::Point(mask.rows / 2, mask.cols / 2), radius, cv::Scalar(255), -1);
+
+		cv::TickMeter meter;
+		cv::Mat blend(img1.size(), CV_8UC3);
+		meter.start();
+		cv::seamlessClone(img2, img1, mask, cv::Point(mask.rows / 2, mask.cols / 2), blend, cv::NORMAL_CLONE);
+		meter.stop();
+		cout << "Seamless clone time: " << meter.getTimeMilli() << " milliseconds. " << std::endl;
+	}
 }
 
 int main()
@@ -210,6 +222,8 @@ int main()
    //Test_GpuMatCopy();
    Test_MatchTemplate();
 
+   Test_UMat_MinMaxLoc();
+
    cout << "Size of CvSize (expected " << sizeof(int) * 2 << "): " << sizeof(CvSize) << std::endl;
    cout << "Size of CvPoint2D32f (expected " << sizeof(float) * 2 << "): " << sizeof(CvSize) << std::endl;
    cout << "Size of CvRect (expected " << sizeof(int) * 4 << "): " << sizeof(CvRect) << std::endl;