Practic_2: running frame (1), save button

CMakeLists.txt

@@ -18,6 +18,7 @@ set(LIBRARY_DEPS ${OpenCV_LIBS})
 
 # BUILD
 add_subdirectory(sample_template)
+add_subdirectory(sample_Kuklina)
 # Add you directory here
 # add_subdirectory(sample_YOUR_NAME)
 

sample_Kuklina/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(target "sample_Kuklina")
+
+file(GLOB hdrs "*.hpp")
+file(GLOB srcs "*.cpp")
+
+add_executable(${target} ${srcs} ${hdrs})
+target_link_libraries(${target} ${LIBRARY_DEPS})

sample_Kuklina/application.cpp

@@ -0,0 +1,182 @@
+#include "application.hpp"
+#include "processing.hpp"
+#include <time.h>
+#include <stdio.h>
+
+#include <opencv2/highgui/highgui.hpp>
+
+using namespace cv;
+
+int Application::parseArguments(int argc, const char **argv, 
+        Application::Parameters &params)
+{
+    if (argc < 2)
+    {
+        return 1;
+    }
+    params.imgFileName = std::string(argv[1]);
+    return 0;
+}
+
+int Application::getFrame(const std::string &fileName, Mat& src)
+{
+    src = imread(fileName);
+    if (src.empty())
+    {
+        return 1;
+    }
+    return 0;
+}
+
+int Application::processFrame(const Mat& src, Mat& dst, Processing::FilterType filter)
+{
+    processor.processFrame(src, dst, filter );
+
+    if (dst.empty())
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
+int Application::drawButtons(Mat &display)
+{
+    guiState.onButtonPlace = Rect(20, display.rows - 60, 120, 40);
+    guiState.offButtonPlace = Rect(160, display.rows - 60, 120, 40);
+    guiState.saveButtonPlace = Rect(300, display.rows - 60, 120, 40);
+    guiState.cvtColorButtonPlace = Rect(440, display.rows - 60, 120, 40);
+    guiState.pixelButtonPlace = Rect(580, display.rows - 60, 120, 40);
+    guiState.cannyButtonPlace = Rect(720, display.rows - 60, 120, 40);
+    rectangle(display, guiState.onButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.offButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.saveButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.cvtColorButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.pixelButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+    rectangle(display, guiState.cannyButtonPlace, 
+              Scalar(128, 128, 128), CV_FILLED);
+
+    putText(display, "median", 
+        Point(guiState.onButtonPlace.x + guiState.onButtonPlace.width / 2 - 55,
+              guiState.onButtonPlace.y + guiState.onButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "off", 
+        Point(guiState.offButtonPlace.x + guiState.offButtonPlace.width / 2 - 20,
+              guiState.offButtonPlace.y + guiState.offButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "save", 
+        Point(guiState.saveButtonPlace.x + guiState.saveButtonPlace.width / 2 - 30,
+              guiState.saveButtonPlace.y + guiState.saveButtonPlace.height / 2 + 10),
+        FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "gray", 
+        Point(guiState.cvtColorButtonPlace.x + guiState.cvtColorButtonPlace.width / 2 - 40, guiState.cvtColorButtonPlace.y + guiState.cvtColorButtonPlace.height / 2 + 10), FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "pixel", 
+        Point(guiState.pixelButtonPlace.x + guiState.pixelButtonPlace.width / 2 - 40, guiState.pixelButtonPlace.y + guiState.pixelButtonPlace.height / 2 + 10), FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+    putText(display, "canny", 
+        Point(guiState.cannyButtonPlace.x + guiState.cannyButtonPlace.width / 2 - 40, guiState.cannyButtonPlace.y + guiState.cannyButtonPlace.height / 2 + 10), FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 0, 0), 2);
+
+    return 0;
+}
+
+int Application::showFrame(const std::string &caption, 
+        const Mat& src, Mat& dst)
+{
+	time_t name_time = time(NULL);
+
+    if (guiState.state == OffFilter)
+    {
+        src.copyTo(dst);
+    }
+    else if (guiState.state == OnFilter)
+    {
+        processFrame(src, dst, guiState.filter);
+    }
+    else
+    {
+        return 1;
+    }
+
+    Mat display(src.rows, src.cols + dst.cols, src.type());
+    Mat srcRoi = display(Rect(0, 0, src.cols, src.rows));
+    src.copyTo(srcRoi);
+    Mat dstRoi = display(Rect(src.cols, 0, dst.cols, dst.rows));
+    dst.copyTo(dstRoi);      
+
+	if(guiState.saveState)
+	{
+		char buff [50];
+		struct tm * timeinfo = localtime (&name_time);
+		sprintf (buff,"%d.%d.%d.png",timeinfo->tm_hour,timeinfo->tm_min, timeinfo->tm_sec);
+		imwrite(buff, display);
+		guiState.saveState = false;
+	}
+
+    drawButtons(display);
+
+    namedWindow(caption);  
+    imshow(caption, display);
+    setMouseCallback(caption, onButtonsOnOffClick, &guiState);
+    char key = waitKey(1);
+
+    return key;
+}
+
+void onButtonsOnOffClick(int eventId, int x, int y, int flags, void *userData)
+{
+    if (eventId != EVENT_LBUTTONDOWN)
+    {
+        return;
+    }
+    Application::GUIElementsState *elems = 
+        (Application::GUIElementsState *)userData;
+    if (onButtonClicked(elems->onButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+	elems->filter = Processing::MEDIAN;
+        return;
+    }
+    if (onButtonClicked(elems->offButtonPlace, x, y))
+    {
+        elems->state = Application::OffFilter;
+        return;
+    }
+	if (onButtonClicked(elems->saveButtonPlace, x, y))
+    {
+        elems->saveState = true;
+        return;
+    }
+    if (onButtonClicked(elems->cvtColorButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+	elems->filter = Processing::CVT_CONVERT_GRAY;
+        return;
+    }
+    if (onButtonClicked(elems->pixelButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+	elems->filter = Processing::PIXELIZED;
+        return;
+    }
+    if (onButtonClicked(elems->cannyButtonPlace, x, y))
+    {
+        elems->state = Application::OnFilter;
+	elems->filter = Processing::CANNY;
+        return;
+    }
+}
+
+bool onButtonClicked(cv::Rect buttonPlace, int x, int y)
+{
+    if (x < buttonPlace.x || x > buttonPlace.x + buttonPlace.width ||
+        y < buttonPlace.y || y > buttonPlace.y + buttonPlace.height)
+    {
+        return false;
+    }
+    return true;
+}
+

sample_Kuklina/application.hpp

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <string>
+#include <iostream>
+#include <opencv2/core/core.hpp>
+
+#include "processing.hpp"
+
+bool onButtonClicked(cv::Rect buttonPlace, int x, int y);
+void onButtonsOnOffClick(int eventId, int x, int y, int flags, void *userData);
+
+class Application
+{
+ public:
+    enum WindowState
+    {
+        OnFilter,
+        OffFilter,
+    };
+    struct Parameters
+    {
+        std::string imgFileName;
+    };
+    struct GUIElementsState
+    {
+        WindowState state;
+        cv::Rect onButtonPlace;
+        cv::Rect offButtonPlace;
+	cv::Rect saveButtonPlace;
+	cv::Rect cvtColorButtonPlace;
+	cv::Rect pixelButtonPlace;
+	cv::Rect cannyButtonPlace;
+	bool saveState;
+	Processing::FilterType filter;
+    };
+    int parseArguments(int argc, const char **argv, Parameters &params);
+    int getFrame(const std::string &fileName, cv::Mat& src);
+    int processFrame(const cv::Mat& src, cv::Mat& dst, Processing::FilterType filter);
+    int showFrame(const std::string &caption, 
+                  const cv::Mat& src, cv::Mat& dst);
+    friend void onButtonsOnOffClick(int eventId, int x, int y, 
+                                    int flags, void *userData);
+    Application() 
+    { 
+        guiState.state = OnFilter;
+	guiState.saveState = false;
+	guiState.filter = Processing::MEDIAN;
+    };
+
+ private:
+    Processing processor;
+    GUIElementsState guiState;
+
+    int drawButtons(cv::Mat &display);
+
+    friend bool onButtonClicked(cv::Rect buttonPlace, int x, int y);
+};

sample_Kuklina/main.cpp

@@ -0,0 +1,44 @@
+#include <opencv2/core/core.hpp>
+#include <iostream>
+
+#include "application.hpp"
+
+using namespace std;
+using namespace cv;
+
+enum ErrorCode {
+    OK,
+    WRONG_ARGUMENTS,
+    WRONG_INPUT,
+    CANT_PROCESS
+};
+
+int main(int argc, const char **argv)
+{
+    Application app;
+    Application::Parameters params;
+
+    if (app.parseArguments(argc, argv, params) != 0)
+    {
+        cout << "sample_Kuklina <image_name>" << endl;
+        cout << "<image_name> - image name for filtering" << endl;
+        return WRONG_ARGUMENTS;
+    }
+
+    Mat src;
+    if (app.getFrame(params.imgFileName, src) != 0)
+    {
+        cout << "Error: \'src\' image is null or empty!" << endl;
+        return WRONG_INPUT;
+    }
+
+    const std::string caption = "OpenCV Sample";
+    char key = 0;
+    Mat dst(src.rows, src.cols, src.type());
+    while (key != 27) // Esc
+    {
+        key = app.showFrame(caption, src, dst);
+    }
+
+	return OK;
+}

sample_Kuklina/processing.cpp

@@ -0,0 +1,68 @@
+#include "processing.hpp"
+#include <stdlib.h>
+#include <time.h>
+
+#include <opencv2/imgproc/imgproc.hpp>
+
+using namespace cv;
+
+void Processing::processFrame(const cv::Mat& src, cv::Mat& dst, Processing::FilterType filter)
+{
+    src.copyTo(dst);
+
+    int random = rand () % 16 + 2;
+
+    cv::Rect region(src.rows/random, src.cols/random, src.rows/2, src.cols/2);
+    Mat roi = dst(region);
+
+    switch (filter)
+    {
+      case Processing::MEDIAN:
+      {
+	  const int kSize = 11;
+	  medianBlur(roi, roi, kSize);
+	  break;
+      }
+      case Processing::CVT_CONVERT_GRAY:
+      {
+	  Mat gray;
+	  cvtColor(roi, gray, CV_BGR2GRAY);
+	  int from_to[] = { 0, 0, 0, 1, 0, 2}; 
+	  mixChannels(&gray, 1, & roi, 1, from_to, 3);
+	  break;
+      }
+      case Processing::PIXELIZED: 
+      {
+	  cv::Mat cir = cv::Mat::zeros(src.size(), CV_8UC1);
+	  int bsize = 10;
+
+	  for (int i = 0; i < roi.rows; i += bsize)
+	  {
+	      for (int j = 0; j < roi.cols; j += bsize)
+	      {
+	      cv::Rect rect = cv::Rect(j, i, bsize, bsize) & 
+                            cv::Rect(0, 0, roi.cols, roi.rows);
+
+	      cv::Mat sub_dst(roi, rect);
+	      sub_dst.setTo(cv::mean(src(rect)));
+
+	      cv::circle(cir, cv::Point(j+bsize/2, i+bsize/2), bsize/2-1, CV_RGB(255,255,255), -1, CV_AA );
+	      }
+	  }
+	  break;
+      }
+      case Processing::CANNY:
+      {
+	  Mat gray, detected_edges;
+	  cvtColor(roi, gray, CV_BGR2GRAY);
+	  blur(gray, detected_edges, Size(3,3) );
+	  Canny( detected_edges, detected_edges, 30, 30*3,3);
+	  roi = Scalar::all(0);
+	  int from_to[] = { 0, 0, 0, 1, 0, 2}; 
+	  mixChannels(&detected_edges, 1, & roi, 1, from_to, 3);
+	  break;
+      }
+    }
+
+    rectangle(dst, region, Scalar(255, 0, 0));
+}

sample_Kuklina/processing.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <opencv2/core/core.hpp>
+
+class Processing
+{
+ public:
+    enum FilterType
+    {
+	MEDIAN,
+	CVT_CONVERT_GRAY,
+	PIXELIZED,
+	CANNY
+    };
+
+    void processFrame(const cv::Mat& src, cv::Mat& dst, Processing::FilterType filter);
+
+};