ora1, ora2 progress

ora1/Makefile

@@ -0,0 +1,5 @@
+CFLAGS = `pkg-config --cflags opencv4`
+LIBS = `pkg-config --libs opencv4`
+
+% : %.cpp
+	g++ $(CFLAGS) $(LIBS) -o $@ $<

ora1/main.cpp

@@ -0,0 +1,34 @@
+#include <opencv2/core.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <iostream>
+
+using namespace cv;
+
+int main(){
+    Mat img = imread("kep.jpg", IMREAD_UNCHANGED);
+
+    if(img.empty()){
+        std::cout << "Missing picture" << std::endl;
+        exit(-1);
+    }
+
+    std::cout << "sor: " <<  img.rows << std::endl;
+    std::cout << "oszlop: " << img.cols << std::endl;
+    std::cout << "csatornak: " << img.channels() << std::endl;
+
+    int t = img.type();
+    if(t == CV_8UC1){ //8bit u->unsigned c1 -> 1 channel
+        std::cout << "szurkeskala (8 bit)" << std::endl;
+    }else if (t == CV_8UC3){
+        std::cout << "szineskep (24 bit)" << std::endl;
+    }else{
+        std::cout << "egyik sem" << std::endl;
+    }
+
+
+    imshow("Ablak", img);
+    waitKey();
+
+    return 0; 
+}

ora1/main2.cpp

@@ -0,0 +1,37 @@
+#include <opencv2/core.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <iostream>
+
+using namespace cv;
+
+int main(){
+    Mat img = imread("kep.jpg", IMREAD_UNCHANGED);
+    Mat img2(200, 50, CV_8UC1);
+    Mat img3(200, 50, CV_8UC3);
+    Mat img4(200, 50, CV_8UC3);
+    img4.setTo(Scalar(0,0, 255)); //szinezes
+
+    Mat img5(img.rows, img.cols, img.type());
+    Mat mask(img.rows, img.cols, CV_8UC1);
+    Mat mask2 = Mat::zeros(img.size(), CV_8UC1); //kinullazot (fekete) mask (vagy barmi mas kep)
+
+
+    //masolat
+    Mat copy = img.clone(); //deepcopy
+    //copy.setTo(Scalar(255,0,0)); //shallow copy -> changes original
+
+    imshow("img", img);
+    imshow("copy", copy);
+
+    //imshow("Ablak", img2);
+    //imshow("Ablak2", img3);
+    //imshow("Ablak3", img4);
+    
+    //imshow("Ablak3", img5);
+    //imshow("Ablak4", mask);
+    //imshow("Ablak6", mask2);
+    waitKey();
+
+    return 0; 
+}

ora2/Makefile

@@ -0,0 +1,5 @@
+CFLAGS = `pkg-config --cflags opencv4`
+LIBS = `pkg-config --libs opencv4`
+
+% : %.cpp
+	g++ $(CFLAGS) $(LIBS) -o $@ $<

ora2/main.cpp

@@ -0,0 +1,25 @@
+#include <opencv2/core.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <iostream>
+
+using namespace cv;
+
+int main(){
+    Mat img = imread("kurama.jpg", IMREAD_COLOR);
+    //imshow("kurama", img);
+    //imshow("k2", img - 100); //fakobb
+    //imshow("k3", img + 100);  //sotetebb
+    //
+
+    Mat d = Scalar(255, 255, 255) - img; //invertalas //bgr formatum
+    imshow("k", d);
+
+
+
+    
+
+
+    waitKey();
+    return 0;
+}

ora2/main2.cpp

@@ -0,0 +1,39 @@
+#include <opencv2/core.hpp>
+#include <opencv2/highgui.hpp>
+#include <opencv2/imgproc.hpp>
+#include <iostream>
+
+using namespace cv;
+
+int main(){
+    Mat img(400, 600, CV_8UC3);
+    img.setTo(Scalar(0,0,255));
+
+    Rect r(0,0,600, 200);
+    img(r).setTo(Scalar(0,255,255));
+
+    //imshow("img", img);
+
+    Mat kurama = imread("kurama.jpg", IMREAD_COLOR);
+    /*int pad = 50;
+    Rect r2(pad, pad, kurama.cols - 2 * pad, kurama.rows - 2 * pad);
+    Mat small = kurama(r2);
+    imwrite("small_kurama.png", small);*/ //cutting 50px off the pic
+
+    resize(kurama, kurama, Size(200, 200));
+
+    Rect r3(img.cols/2-100, img.rows/2-100, kurama.cols, kurama.rows);
+    kurama.copyTo(img(r3)); //copy kurama image over the yellow and red rects
+    imshow("img2", img);
+
+
+
+
+
+
+
+
+    waitKey();
+
+    return 0; 
+}