add DisplayImage example

.gitignore

@@ -6,3 +6,5 @@ cmake_install.cmake
 
 SVMTest
 SVMTest.png
+
+DisplayImage

CMakeLists.txt

@@ -4,3 +4,6 @@ find_package( OpenCV REQUIRED )
 
 add_executable( SVMTest SVMTest.cpp )
 target_link_libraries( SVMTest ${OpenCV_LIBS} )
+
+add_executable( DisplayImage DisplayImage.cpp )
+target_link_libraries( DisplayImage ${OpenCV_LIBS} )

DisplayImage.cpp

@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <opencv2/opencv.hpp>
+
+using namespace cv;
+
+int main(int argc, char **argv)
+{
+    if (argc != 2) {
+        printf("Usage: DisplayImage image.jpg\n");
+        return -1;
+    }
+
+    Mat image;
+    image = imread(argv[1], 1);
+
+    if (argc != 2 || !image.data) {
+        printf("No image data\n");
+        return -1;
+    }
+
+    namedWindow("Display Image", CV_WINDOW_AUTOSIZE);
+    imshow("Display Image", image);
+
+    waitKey(0);
+
+    return 0;
+}