| Es++ Sample: HoughCircleDetector |
/******************************************************************************
*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
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*
* HoughCircleDetector.cpp
*
*****************************************************************************/
//
#include <es++/gtkmm-3.0/Application.h>
#include <es++/gtkmm-3.0/Label.h>
#include <es++/gtkmm-3.0/LabeledTrackBar.h>
#include <es++/gtkmm-3.0/FileOpenDialog.h>
#include <es++/opencv-4.0/OpenCVMainView.h>
#include <es++/opencv-4.0/OpenCVScrolledImageView.h>
#include <es++/opencv-4.0/OpenCVScaleComboBox.h>
using namespace Gtk;
namespace Es {
class MainView :public Es::OpenCVMainView {
private:
///////////////////////////////////////////////////////
//Inner classes start.
class OriginalImageView :public Es::OpenCVScrolledImageView {
public:
OriginalImageView()
{
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(scaling_ratio);
}
};
class DetectedImageView :public Es::OpenCVScrolledImageView {
private:
cv::Mat gray_image;
cv::Mat detected_image;
public:
DetectedImageView()
{
}
void loadImage(const std::string& filename,
int imageLoadingFlag= CV_LOAD_IMAGE_COLOR,
int scaling_ratio=100)
{
OpenCVScrolledImageView::loadImage(filename, imageLoadingFlag,
scaling_ratio);
cv::Mat& original_image = getOriginalImage();
cv::cvtColor(original_image, gray_image, COLOR_BGR2GRAY );
detected_image = original_image.clone();
scaleImage(detected_image, scaling_ratio);
}
int detect(int ksize, int sigma,
int threshold1, int paramThreshold,
int scalingRatio)
{
cv::Mat& original_image = getOriginalImage();
//1 Apply cv::GaussianBlur to the grayImage.
ksize = (ksize/2)*2 + 1;
cv::GaussianBlur(gray_image, detected_image, cv::Size(ksize, ksize),
(double)sigma, //sigmaX,
(double)sigma); //sigmaY
//2 Apply cv::HoughCircles to the grayImage to detect circles.
std::vector<Vec3f> circles;
cv::HoughCircles(detected_image, circles, CV_HOUGH_GRADIENT, 1,
detected_image.rows/8, threshold1, paramThreshold, 0, 0 );
//3 Put a clone of ogirinalImage to the detectedImage,
// since the detectedImage is not necessary any more.
detected_image.release();
detected_image = original_image.clone();
// Draw the circles detected
int detectedNumber = circles.size();
for( size_t i = 0; i < circles.size(); i++ ) {
Point center(cvRound(circles[i][0]), cvRound(circles[i][1]));
int radius = cvRound(circles[i][2]);
//Draw the center of the circle of radius = 3;
cv::circle(detected_image, center, 3, Scalar(0,255,0), -1, 8, 0 );
//Draw the outline of the circle of radius.
cv::circle(detected_image, center, radius, Scalar(0,0,255), 3, 8, 0 );
}
scaleImage(detected_image, scalingRatio);
return detectedNumber;
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(detected_image, scaling_ratio);
}
};
// Inner classes end.
///////////////////////////////////////////////////////
Es::Label filepath;
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
OriginalImageView original_image;
DetectedImageView detected_image;
int loading_flag;
Es::OpenCVScaleComboBox scale_combobox;
int ksize;
Es::LabeledTrackBar ksize_trackbar;
int sigma;
Es::LabeledTrackBar sigma_trackbar;
int threshold1;
Es::LabeledTrackBar threshold1_trackbar;
int paramThreshold;
Es::LabeledTrackBar paramThreshold_trackbar;
int scaling_ratio; //Percentage.
static const int CONTROLPANE_WIDTH = 200;
std::string filename;
Es::Label detected_number;
Es::FileOpenDialog file_dialog;
public:
//////////////////////////////////////////////
//Constructor
//
MainView(Es::Application& applet,
std::string& name,
Es::Args& args)
:OpenCVMainView(applet, name, args)
,scaling_ratio(100) //100%
,file_dialog(*this, Es::FileOpenDialog::IMAGE_FILES)
{
int w = (int)args.get(XmNwidth);
int h = (int)args.get(XmNheight);
int ratio = (int)args.get(XmNscalingRatio);
scaling_ratio = OpenCVImageView::validateScale(ratio);
Es::MainLayout& main_layout = get_main_layout();
main_layout.pack_start(filepath, FALSE, FALSE, 0);
main_layout.pack_start(horiz_layout);
filename = "../../images/Geometry3.png";
filepath.set_label(filename);
int ww = (w - CONTROLPANE_WIDTH)/2;
filepath.set_size_request(w, 30);
original_image.set_size_request(ww, h);
detected_image.set_size_request(ww, h);
control_pane.set_size_request( CONTROLPANE_WIDTH, h);
horiz_layout.pack_start(original_image);
horiz_layout.pack_start(detected_image);
horiz_layout.pack_start(control_pane, FALSE, FALSE, 0);
scale_combobox.set_selection(scaling_ratio);
scale_combobox.set_changed_callback(
sigc::mem_fun(*this, &MainView::scale_changed) );
ksize_trackbar.set_label("GaussianBlur Kernel:[0,31]");
ksize = 7;
ksize_trackbar.configure_adjuster(ksize, 0, 31);
ksize_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::ksize_changed) );
sigma_trackbar.set_label("GaussianBlur Sigma:[1,20]");
sigma = 2;
sigma_trackbar.configure_adjuster(sigma, 1, 20);
sigma_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::sigma_changed) );
threshold1_trackbar.set_label("Canny Threshold1:[0,300]");
threshold1 = 120;
threshold1_trackbar.configure_adjuster(threshold1, 0, 300);
threshold1_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::threshold1_changed) );
paramThreshold_trackbar.set_label("Param Threshold:[0,300]");
paramThreshold = 50;
paramThreshold_trackbar.configure_adjuster(paramThreshold, 0, 300);
paramThreshold_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::paramThreshold_changed) );
control_pane.set_spacing(20);
control_pane.pack_start(scale_combobox, Gtk::PACK_SHRINK);
control_pane.pack_start(ksize_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(sigma_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(threshold1_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(paramThreshold_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(detected_number, Gtk::PACK_SHRINK);
loading_flag = IMREAD_COLOR;
original_image.loadImage(filename, loading_flag, scaling_ratio);
detected_image.loadImage(filename, loading_flag, scaling_ratio);
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
show_all();
}
void scale_changed()
{
std::string scale = scale_combobox.get_active_text();
printf("scale_changed %s\n", scale.c_str());
scaling_ratio = scale_combobox.get_selection();
original_image.rescale(scaling_ratio);
detected_image.rescale(scaling_ratio);
}
void ksize_changed()
{
ksize = ksize_trackbar.get_value();
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
}
void sigma_changed()
{
sigma = sigma_trackbar.get_value();
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
}
void threshold1_changed()
{
threshold1 = threshold1_trackbar.get_value();
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
}
void paramThreshold_changed()
{
paramThreshold = paramThreshold_trackbar.get_value();
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
}
void file_open()
{
int rc = file_dialog.popup();
if (rc == Gtk::RESPONSE_OK) {
const std::string filename = file_dialog.get_filename();
filepath.set_label(filename);
original_image.loadImage(filename, loading_flag, scaling_ratio);
detected_image.loadImage(filename, loading_flag, scaling_ratio);
int number = detected_image.detect(ksize, sigma, threshold1,
paramThreshold, scaling_ratio);
detected_number.set_number("DetectedNumber:", number);
}
}
};
}
int main(int argc, char** argv)
{
Es::Environment env;
try {
std::string name = argv[0];
Es::Application applet(argc, argv);
Es::Args args;
args.set(XmNx, 20);
args.set(XmNy, 40);
args.set(XmNwidth, 900);
args.set(XmNheight, 440);
args.set(XmNscalingRatio, 60); //60%
Es::MainView mainv(applet, name, args);
mainv.show();
applet.run(mainv);
} catch (Es::Exception& ex) {
caught(ex);
} catch (...) {
printf("Get exception \n");
}
return 0;
}