From cc1084ec77ab38fda2c15b846e288ab3be7a9043 Mon Sep 17 00:00:00 2001
From: Jim Martens <github@2martens.de>
Date: Tue, 11 Apr 2017 15:03:23 +0200
Subject: [PATCH] [CCV] Finished sheet2

Signed-off-by: Jim Martens <github@2martens.de>
---
 ccv/sheet2/CMakeLists.txt |  9 +++++++++
 ccv/sheet2/main.cpp       | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 ccv/sheet2/CMakeLists.txt
 create mode 100644 ccv/sheet2/main.cpp

diff --git a/ccv/sheet2/CMakeLists.txt b/ccv/sheet2/CMakeLists.txt
new file mode 100644
index 0000000..54c2e03
--- /dev/null
+++ b/ccv/sheet2/CMakeLists.txt
@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.5)
+project(sheet2)
+
+set(CMAKE_CXX_STANDARD 11)
+
+find_package( OpenCV REQUIRED )
+
+add_executable(sheet2 main.cpp)
+target_link_libraries(sheet2 ${OpenCV_LIBS})
diff --git a/ccv/sheet2/main.cpp b/ccv/sheet2/main.cpp
new file mode 100644
index 0000000..2a05e48
--- /dev/null
+++ b/ccv/sheet2/main.cpp
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <opencv2/opencv.hpp>
+
+int main()
+{
+  // exercise 1
+  cv::Mat M = (cv::Mat_<uchar>(4, 4) << 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+  std::cout << M << std::endl << std::endl;
+  // exercise 2
+  M.at<uchar>(1, 2) = 100;
+  std::cout << M << std::endl << std::endl;
+  // exercise 3
+  std::cout << "The elements of the matrix: ";
+  for (int row = 0; row < M.rows; ++row)
+  {
+    for (int col = 0; col < M.cols; ++col)
+    {
+      if (row != 0 || col != 0)
+      {
+        std::cout << ",";
+      }
+      std::cout << " " << static_cast<int>(M.at<uchar>(row, col));
+    }
+  }
+  std::cout << std::endl << std::endl;
+  //exercise 4
+  cv::Mat K(M);
+  K.at<uchar>(1, 2) = 200;
+  std::cout << "M: " << M << std::endl << "K: " << K << std::endl << std::endl;
+  //exercise 5
+  cv::Mat B = cv::Mat(400, 400, CV_8UC3, cv::Scalar(255, 0, 0));
+  cv::namedWindow("Display Image", cv::WINDOW_FULLSCREEN);
+  cv::imshow("Display Image", B);
+  cv::waitKey(0);
+  return 0;
+}
+