Add OpenCV Test

OpenCV_test/.vscode/settings.json

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+{
+    "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools"
+}

OpenCV_test/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.0.0)
+project(OpenCV_test VERSION 1.0.0)
+
+#Find the opencv package
+find_package(OpenCV REQUIRED)
+
+#include directories for opencv
+include_directories(${OpenCV_INCLUDE_DIRS})
+
+add_executable(OpenCV_test main.cpp)
+
+#Add command to generate .gitignore
+add_custom_command(TARGET ${PROJECT_NAME} 
+                   COMMAND echo \"*\" > ${CMAKE_BINARY_DIR}/.gitignore
+                   COMMAND echo \"**/*\" > ${CMAKE_BINARY_DIR}/.hgignore)
+
+#Add OpenCV Libraries
+target_link_libraries(OpenCV_test ${OpenCV_LIBS})

OpenCV_test/main.cpp

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+#include <opencv2/opencv.hpp>
+#include <iostream>
+using namespace cv;
+
+int main(int argc,char ** argv){
+    //If no image file name, throw a error
+    if(argc != 2){
+        std::cout<<"Usage:OpenCV_test <filename>"<<std::endl;
+        return -1;
+    }
+
+    std::cout<<argv[1]<<std::endl;
+
+    //Create a new image
+    Mat image;
+    image = imread(argv[1],1);
+
+    //Check if image loaded
+    if(!image.data){
+        std::cout<<"No Image data"<<std::endl;
+        return -1;
+    }
+
+    //Create a window to show image
+    namedWindow(argv[1],WINDOW_NORMAL);
+    imshow(argv[1],image);
+
+    waitKey(0);
+
+    return 0;
+}