Practice 1

samples/practice1_PEROV_DIMA.cpp

@@ -0,0 +1,58 @@
+#include <iostream>
+#include <string>
+
+#include <opencv2/imgproc.hpp>
+#include <opencv2/highgui.hpp>
+
+#include "filter.h"
+
+using namespace cv;
+using namespace std;
+
+const char* cmdAbout = "Sample of OpenCV usage. ";
+
+const char* cmdOptions =
+"{ i  image         | <none> | image to process        }"
+"{ w  width         | <none> | width for image resize  }"
+"{ h  height        | <none> | height for image resize }"
+"{ q ? help usage   | <none> | print help message      }";
+
+int main(int argc, char** argv)
+{
+    // Process input arguments
+    CommandLineParser parser(argc, argv, cmdOptions);
+    parser.about(cmdAbout);
+
+    if (parser.has("help"))
+    {
+        parser.printMessage();
+        return 0;
+    }
+    if (!parser.check())
+    {
+        parser.printErrors();
+        return 0;
+    }
+
+    // Load image
+    String imgName(parser.get<String>("image"));
+    Mat image = imread(imgName);
+    Mat res(image.size(), CV_8UC3);
+    Mat res1(image.size(), CV_8UC1);
+
+    // Filter image
+
+    GrayFilter myFilter;
+    ResizeFilter myResizeFilter(parser.get<int>("width"), parser.get<int>("height"));
+
+    res = myResizeFilter.ProcessImage(image);
+    res1 = myFilter.ProcessImage(res);
+
+    // Show image
+
+    imwrite("res.jpg", res1);
+    imshow("image", res1);
+    waitKey();
+
+    return 0;
+}

src/filter.cpp

@@ -1 +1,26 @@
-#include "filter.h"
+#include "filter.h"
+
+Mat GrayFilter::ProcessImage(Mat image)
+{
+    Mat res(image.size(), CV_8UC1);
+
+    // Filter image
+
+    cvtColor(image, res, COLOR_RGB2GRAY);
+
+    return res;
+}
+
+ResizeFilter::ResizeFilter(int newWidth, int newHeight)
+{
+    width = newWidth;
+    height = newHeight;
+}
+
+Mat ResizeFilter::ProcessImage(Mat image)
+{
+    Mat res;
+    resize(image, res, Size(width, height));
+    return res;
+}
+