| Es++ Sample: EdgePreservingFilter |
/******************************************************************************
*
* 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
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* EdgePreservingFilter.cpp
*
*****************************************************************************/
//
//photo.hpp
/** @brief Filtering is the fundamental operation in image and video processing. Edge-preserving smoothing
filters are used in many different applications @cite EM11 .
@param src Input 8-bit 3-channel image.
@param dst Output 8-bit 3-channel image.
@param flags Edge preserving filters:
- **RECURS_FILTER** = 1
- **NORMCONV_FILTER** = 2
@param sigma_s Range between 0 to 200.
@param sigma_r Range between 0 to 1.
CV_EXPORTS_W void edgePreservingFilter(InputArray src, OutputArray dst, int flags = 1,
float sigma_s = 60, float sigma_r = 0.4f);
*/
#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 FilteredImageView :public Es::OpenCVScrolledImageView {
private:
cv::Mat filtered_image;
public:
FilteredImageView()
{
}
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();
filtered_image = original_image.clone();
scaleImage(filtered_image, scaling_ratio);
}
void filter(int ksize, int sigmacolor, int sigmaspace, int scaling_ratio)
{
cv::Mat& original_image = getOriginalImage();
ksize = (ksize/2)*2 + 1;
try {
int flag = RECURS_FILTER ; //NORMCONV_FILTER is very slow;
cv::edgePreservingFilter(
original_image,
filtered_image,
flag,
(double)sigmaspace,
(double)sigmacolor/100.0f);
scaleImage(filtered_image, scaling_ratio);
} catch (cv::Exception& ex) {
; //Ignore
}
}
void rescale(int scaling_ratio)
{
OpenCVScrolledImageView::scaleImage(filtered_image, scaling_ratio);
}
};
// Inner classes end.
///////////////////////////////////////////////////////
Es::Label filepath;
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
OriginalImageView original_image;
FilteredImageView filtered_image;
int loading_flag;
Es::OpenCVScaleComboBox scale_combobox;
Es::LabeledTrackBar ksize_trackbar;
int ksize;
Es::LabeledTrackBar sigmacolor_trackbar;
int sigmacolor;
Es::LabeledTrackBar sigmaspace_trackbar;
int sigmaspace;
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);
filtered_image.set_size_request(ww, h);
control_pane.set_size_request( CONTROLPANE_WIDTH, h);
horiz_layout.pack_start(original_image);
horiz_layout.pack_start(filtered_image);
horiz_layout.pack_start(control_pane, FALSE, FALSE, 0);
scale_combobox.set_selection(scaling_ratio);
ksize = 3;
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) );
sigmacolor = 160;
sigmacolor_trackbar.set_label("SigmaColor: [0, 200]");
sigmacolor_trackbar.configure_adjuster((double)sigmacolor, 0.0f, 200.0f);
sigmacolor_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::sigmacolor_value_changed) );
sigmaspace = 40;
sigmaspace_trackbar.set_label("SigmaColor: [0, 100]");
sigmaspace_trackbar.configure_adjuster((double)sigmaspace, 0.0f, 100.0f);
sigmaspace_trackbar.set_value_changed_callback(
sigc::mem_fun(*this, &MainView::sigmaspace_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);
control_pane.pack_start(sigmacolor_trackbar, Gtk::PACK_SHRINK);
control_pane.pack_start(sigmaspace_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);
filtered_image.loadImage(filename, loading_flag, scaling_ratio);
filtered_image.filter(ksize, sigmacolor, sigmaspace, 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);
filtered_image.rescale(scaling_ratio);
}
void ksize_value_changed()
{
ksize = (int)ksize_trackbar.get_value();
filtered_image.filter(ksize, sigmacolor, sigmaspace, scaling_ratio);
}
void sigmacolor_value_changed()
{
sigmacolor = (int)sigmacolor_trackbar.get_value();
filtered_image.filter(ksize, sigmacolor, sigmaspace, scaling_ratio);
}
void sigmaspace_value_changed()
{
sigmaspace = (int)sigmaspace_trackbar.get_value();
filtered_image.filter(ksize, sigmacolor, sigmaspace, 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);
filtered_image.loadImage(filename, loading_flag, scaling_ratio);
filtered_image.filter(ksize, sigmacolor, sigmaspace, 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;
}