| Es++ Sample: ImageTransformationByColorFilter |
/******************************************************************************
*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
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*
* ImageTransformationByColorFilter.cpp
*
*****************************************************************************/
//
#include <es++/Pair.h>
#include <es++/gtkmm-3.0/Application.h>
#include <es++/gtkmm-3.0/Label.h>
#include <es++/gtkmm-3.0/LabeledComboBox.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:
typedef enum {
GOLD = 0,
GRAY,
GREEN,
SEPIA,
VIOLET,
} FILTER;
private:
///////////////////////////////////////////////////////
//Inner classes start.
class OriginalImageView :public Es::OpenCVScrolledImageView {
public:
OriginalImageView()
{
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(scaling_ratio);
}
};
class TransformedImageView :public Es::OpenCVScrolledImageView {
private:
cv::Mat transformed_image;
public:
TransformedImageView()
{
}
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();
transformed_image = original_image.clone();
scaleImage(transformed_image, scaling_ratio);
}
void transform(FILTER filter, int scaling_ratio)
{
cv::Mat& original_image = getOriginalImage();
try {
cv::Mat filters[5];
//gold
filters[GOLD] = (cv::Mat_<float>(3,3) <<
0.114f, 0.114f, 0.114f,
0.299f, 0.299f, 0.299f,
0.587f, 0.587f, 0.587f
);
//gray
filters[GRAY] = (cv::Mat_<float>(3,3) <<
0.5f, 0.5f, 0.5f,
0.5f, 0.5f, 0.5f,
0.5f, 0.5f, 0.5f);
//green
filters[GREEN] = (cv::Mat_<float>(3,3) <<
0.114f, 0.114f, 0.114f,
0.587f, 0.587f, 0.587f,
0.299f, 0.299f, 0.299f
);
//sepia
filters[SEPIA] = (cv::Mat_<float>(3,3) <<
0.272, 0.534, 0.131,
0.349, 0.686, 0.168,
0.393, 0.769, 0.189);
//violet
filters[VIOLET] = (cv::Mat_<float>(3,3) <<
0.587f, 0.587f, 0.587f,
0.114f, 0.114f, 0.114f,
0.299f, 0.299f, 0.299f
);
cv::Mat newImage = original_image.clone();
cv::transform(original_image,
newImage,
filters[filter]);
transformed_image = newImage;
scaleImage(transformed_image, scaling_ratio);
} catch (Es::Exception& ex) {
caught(ex);
}
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(transformed_image, scaling_ratio);
}
};
// Inner classes end.
///////////////////////////////////////////////////////
Es::Label filepath;
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
OriginalImageView original_image;
TransformedImageView transformed_image;
int loading_flag;
Es::OpenCVScaleComboBox scale_combobox;
FILTER filter;
Es::LabeledComboBox filter_combobox;
int scaling_ratio; //Percentage.
static const int CONTROLPANE_WIDTH = 180;
std::string filename;
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/flower.png";
filepath.set_label(filename);
int ww = (w - CONTROLPANE_WIDTH)/2;
filepath.set_size_request(w, 30);
original_image.set_size_request(ww, h);
transformed_image.set_size_request(ww, h);
control_pane.set_size_request( CONTROLPANE_WIDTH, h);
horiz_layout.pack_start(original_image);
horiz_layout.pack_start(transformed_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) );
const char* items[] = {
"Gold", "Gray", "Green", "Sepia", "Violet"
};
filter = SEPIA;
filter_combobox.set_label("Filter");
filter_combobox.append_items(items, CountOf(items));
filter_combobox.set_active_text(items[filter]);
filter_combobox.set_changed_callback(
sigc::mem_fun(*this, &MainView::filter_changed));
control_pane.pack_start(scale_combobox, Gtk::PACK_SHRINK);
control_pane.pack_start(filter_combobox, Gtk::PACK_SHRINK);
loading_flag = IMREAD_COLOR;
original_image.loadImage(filename, loading_flag, scaling_ratio);
transformed_image.loadImage(filename, loading_flag, scaling_ratio);
transformed_image.transform(filter, scaling_ratio);
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);
transformed_image.rescale(scaling_ratio);
}
void filter_changed()
{
filter = (FILTER)filter_combobox.get_active_row_number();
transformed_image.transform(filter, scaling_ratio);
}
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);
transformed_image.loadImage(filename, loading_flag, scaling_ratio);
transformed_image.transform(filter, scaling_ratio);
}
}
};
}
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, 400);
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;
}