| Es++ Sample: VideoImageBlurring |

/******************************************************************************
*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
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*
* VideoImageBlurring.cpp
*
*****************************************************************************/
//
#include <es++/gtkmm-3.0/LabeledTrackBar.h>
#include <es++/opencv-4.0/OpenCVApplication.h>
#include <es++/opencv-4.0/OpenCVVideoCaptureView.h>
#include <es++/opencv-4.0/OpenCVScrolledImageView.h>
#include <es++/opencv-4.0/OpenCVScaleComboBox.h>
using namespace Gtk;
namespace Es {
class MainView :public Es::OpenCVVideoCaptureView {
private:
///////////////////////////////////////////////////////
//Inner class starts.
class BlurredImageView :public Es::OpenCVScrolledImageView {
private:
//cv::Mat blurred_image;
public:
BlurredImageView()
{
}
void blur(cv::Mat& original_image,
int ksize, int scaling_ratio)
{
ksize = (ksize/2)*2 + 1;
//void boxFilter(InputArray src, OutputArray dst, int ddepth, Size ksize,
// Point anchor=Point(-1,-1),
// bool normalize=true,
// int borderType=BORDER_DEFAULT )
cv::Mat newImage = cv::Mat::zeros(original_image.size(),
original_image.type() );
cv::boxFilter(original_image, newImage,
original_image.type(),
cv::Size(ksize, ksize),
cv::Point(-1, -1),
true,
BORDER_DEFAULT);
OpenCVScrolledImageView::scaleImage(newImage, scaling_ratio);
}
};
// Inner class ends.
///////////////////////////////////////////////////////
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
Es::OpenCVScrolledImageView original_image;
BlurredImageView blurred_image;
Es::OpenCVScaleComboBox scale_combobox;
Es::LabeledTrackBar ksize_trackbar;
int ksize;
int scaling_ratio; //Percentage.
static const int CONTROLPANE_WIDTH = 180;
public:
//////////////////////////////////////////////
//Constructor
//
MainView(Es::OpenCVApplication& applet,
std::string& name,
Es::Args& args)
:OpenCVVideoCaptureView(applet, name, args)
,scaling_ratio(100)
{
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(horiz_layout);
int ww = (w - CONTROLPANE_WIDTH)/2;
original_image.set_size_request(ww, h);
blurred_image.set_size_request(ww, h);
control_pane.set_size_request( CONTROLPANE_WIDTH, h);
horiz_layout.pack_start(original_image);
horiz_layout.pack_start(blurred_image);
horiz_layout.pack_start(control_pane, FALSE, FALSE, 0);
scale_combobox.set_selection(scaling_ratio);
ksize = 11;
ksize_trackbar.set_label("KernelSize: [1, 31]");
ksize_trackbar.configure_adjuster((double)ksize, 1.0f, 31.0f);
ksize_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::ksize_value_changed) );
control_pane.set_spacing(20);
control_pane.pack_start(scale_combobox, Gtk::PACK_SHRINK);
control_pane.pack_start(ksize_trackbar, Gtk::PACK_SHRINK);
scale_combobox.set_changed_callback(
sigc::mem_fun(*this, &MainView::scale_changed) );
show_all();
}
void scale_changed()
{
std::string scale = scale_combobox.get_active_text();
scaling_ratio = scale_combobox.get_selection();
}
void ksize_value_changed()
{
ksize = (int)ksize_trackbar.get_value();
}
virtual bool render()
{
try {
cv::Mat frame;
if (read_video_frame(frame)) {
original_image.scaleImage(frame, scaling_ratio);
blurred_image.blur(frame, ksize, scaling_ratio);
}
} catch (...) {
}
return true;
}
};
}
int main(int argc, char** argv)
{
Es::Environment env;
try {
std::string name = argv[0];
Es::OpenCVApplication 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%
args.set(XmNvideoDeviceIndex, 0);
args.set(XmNcaptureAutoStart, true);
Es::MainView mainv(applet, name, args);
mainv.show();
applet.run(mainv);
} catch (Es::Exception& ex) {
caught(ex);
} catch (...) {
printf("Get exception \n");
}
return 0;
}