| Es++ Sample: ContrastAndBrightnessAdjustView |
/******************************************************************************
*
* 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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*
* ContrastAndBrightnessAdjustView.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 ConvertedImageView :public Es::OpenCVScrolledImageView {
private:
cv::Mat converted_image;
public:
ConvertedImageView()
{
}
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();
converted_image = original_image.clone();
scaleImage(converted_image, scaling_ratio);
}
void convertImage(int alpha, int beta, int scaling_ratio)
{
cv::Mat& original_image = getOriginalImage();
//Apply Mat::converTo method to the originalImage.
original_image.convertTo( converted_image, -1,
(double)alpha, (double)beta );
scaleImage(converted_image, scaling_ratio);
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(converted_image, scaling_ratio);
}
};
// Inner classes end.
///////////////////////////////////////////////////////
Es::Label filepath;
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
OriginalImageView original_image;
ConvertedImageView converted_image;
int loading_flag;
Es::OpenCVScaleComboBox scale_combobox;
int contrast;
Es::LabeledTrackBar contrast_trackbar;
int brightness;
Es::LabeledTrackBar brightness_trackbar;
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/Cloud.png";
filepath.set_label(filename);
int ww = (w - CONTROLPANE_WIDTH)/2;
filepath.set_size_request(w, 30);
original_image.set_size_request(ww, h);
converted_image.set_size_request(ww, h);
control_pane.set_size_request( CONTROLPANE_WIDTH, h);
horiz_layout.pack_start(original_image);
horiz_layout.pack_start(converted_image);
horiz_layout.pack_start(control_pane, FALSE, FALSE, 0);
scale_combobox.set_selection(scaling_ratio);
contrast = 1;
contrast_trackbar.set_label("Contrast: [1, 3]");
contrast_trackbar.configure_adjuster((double)contrast, 1.0f, 3.0f);
contrast_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::contrast_value_changed) );
brightness = 10;
brightness_trackbar.set_label("Brightness: [0, 100]");
brightness_trackbar.configure_adjuster((double)brightness, 0.0f, 100.0f);
brightness_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::brightness_value_changed) );
control_pane.set_spacing(20);
control_pane.pack_start(scale_combobox, Gtk::PACK_SHRINK);
control_pane.pack_start(contrast_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(brightness_trackbar, Gtk::PACK_SHRINK);
scale_combobox.set_changed_callback(
sigc::mem_fun(*this, &MainView::scale_changed) );
loading_flag = IMREAD_COLOR;
original_image.loadImage(filename, loading_flag, scaling_ratio);
converted_image.loadImage(filename, loading_flag, scaling_ratio);
converted_image.convertImage(contrast, brightness, 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);
converted_image.rescale(scaling_ratio);
}
void contrast_value_changed()
{
contrast = (int)contrast_trackbar.get_value();
converted_image.convertImage(contrast, brightness, scaling_ratio);
}
void brightness_value_changed()
{
brightness = (int)brightness_trackbar.get_value();
converted_image.convertImage(contrast, brightness, 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);
converted_image.loadImage(filename, loading_flag, scaling_ratio);
converted_image.convertImage(contrast, brightness, 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;
}