| OZ++ Sample: DynamicAdaptedFeatureDetector |
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*
* DynamicdAdaptedFeatureDetector.cpp
*
*****************************************************************************/
//2017/06/10
/*
//FAST feature detection 10 times until that number of keypoints are found
Ptr<FeatureDetector> detector(new DynamicAdaptedFeatureDetector(new FastAdjuster(20,true),100, 110
*/
#include <oz++/motif/Label.h>
#include <oz++/motif/RowColumn.h>
#include <oz++/motif/LabeledTrackBar.h>
#include <oz++/opencv/OpenCVScaleComboBox.h>
#include <oz++/opencv/OpenCVMainView.h>
#include <oz++/opencv/OpenCVImageView.h>
#include <oz++/motif/FileOpenDialog.h>
#include <opencv2/features2d/features2d.hpp>
namespace OZ {
class MainView :public OpenCVMainView {
private:
///////////////////////////////////////////////
//Inner classes start.
class OriginalImageView: public OpenCVImageView {
private:
cv::Mat originalImage;
cv::Mat scaledImage;
virtual void display()
{
show(scaledImage);
}
public:
OriginalImageView(View* parent, const char* name, Args& args)
:OpenCVImageView(parent, name, args)
{
try {
const char* filename = (const char*)args.get(XmNimageFileName);
int imageLoadingFlag = args.get(XmNimageLoadingFlag);
int scalingRatio = (int)args.get(XmNimageScalingRatio);
loadImage(filename, imageLoadingFlag, scalingRatio);
} catch (OZ::Exception ex) {
caught(ex);
}
}
~OriginalImageView()
{
}
void loadImage(const char* filename,
int imageLoadingFlag= CV_LOAD_IMAGE_COLOR,
int scalingRatio=100)
{
originalImage = readImage(filename, imageLoadingFlag);
scaleImage(originalImage, scaledImage, scalingRatio);
}
void rescale(int scalingRatio)
{
scaledImage.release();
scaleImage(originalImage, scaledImage, scalingRatio);
}
};
class DetectedImageView: public OpenCVImageView {
private:
cv::Mat originalImage;
cv::Mat detectedImage;
cv::Mat scaledImage;
//The scale image is displayed on this image view.
virtual void display()
{
show(scaledImage);
}
public:
DetectedImageView(View* parent, const char* name, Args& args)
:OpenCVImageView(parent, name, args)
{
try {
const char* filename = (const char*)args.get(XmNimageFileName);
int imageLoadingFlag = args.get(XmNimageLoadingFlag);
int scalingRatio = (int)args.get(XmNimageScalingRatio);
loadImage(filename, imageLoadingFlag, scalingRatio);
} catch (OZ::Exception ex) {
caught(ex);
}
}
~DetectedImageView()
{
}
void loadImage(const char* filename,
int imageLoadingFlag= CV_LOAD_IMAGE_COLOR,
int scalingRatio=100)
{
originalImage = readImage(filename, imageLoadingFlag);
detectedImage = originalImage.clone();
//detectedImage.create( originalImage.size(), originalImage.type() );
scaleImage(detectedImage, scaledImage, scalingRatio);
}
void rescale(int scalingRatio)
{
scaledImage.release();
scaleImage(detectedImage, scaledImage, scalingRatio);
}
void detect(int min, int max, int iterator,
int scalingRatio)
//void detect(int scalingRatio)
{
//OpenCV2.4.8
//class CV_EXPORTS FastAdjuster: public AdjusterAdapter {
//
// FastAdjuster(int init_thresh=20,
// bool nonmax=true, int min_thresh=1, int max_thresh=200);
//
//class CV_EXPORTS DynamicAdaptedFeatureDetector: public FeatureDetector {
//
//DynamicAdaptedFeatureDetector( const Ptr<AdjusterAdapter>& adjuster,
// int min_features=400, int max_features=500, int max_iters=5 );
detectedImage = originalImage.clone();
cv::Ptr<cv::DynamicAdaptedFeatureDetector> detector =
new cv::DynamicAdaptedFeatureDetector(
new cv::FastAdjuster(20, true),
min, max, iterator);
std::vector<cv::KeyPoint> keypoints;
detector->detect(detectedImage, keypoints);
drawKeypoints(detectedImage, keypoints, detectedImage,
cv::Scalar(0xff, 0x00, 0x00)); //BLUE in BGR
scaleImage(detectedImage, scaledImage, scalingRatio);
}
};
//Inner classes end.
private:
StringT<char> imageFile;
int imageLoadingFlag;
int imageScalingRatio; //percentage
SmartPtr<Label> label;
SmartPtr<OriginalImageView> originalImage;
SmartPtr<DetectedImageView> detectedImage;
SmartPtr<RowColumn> controlPane;
SmartPtr<OpenCVScaleComboBox> scaleComboBox;
int minFeature;
int maxFeature;
int maxIterator;
SmartPtr<LabeledTrackBar> minFeatureTrackBar;
SmartPtr<LabeledTrackBar> maxFeatureTrackBar;
SmartPtr<LabeledTrackBar> maxIteratorTrackBar;
SmartPtr<FileOpenDialog> fileDialog;
public:
void scaleChanged(Action& action)
{
int val = scaleComboBox->getScale();
if (val > 0 && imageScalingRatio != val) {
imageScalingRatio = val;
originalImage -> rescale(imageScalingRatio);
detectedImage -> rescale(imageScalingRatio);
}
}
void minFeatureTrackBarScrolled(Action& event)
{
minFeature = minFeatureTrackBar->getPosition();
detectedImage->detect(minFeature, maxFeature,
maxIterator,imageScalingRatio);
}
void maxFeatureTrackBarScrolled(Action& event)
{
maxFeature = maxFeatureTrackBar->getPosition();
detectedImage->detect(minFeature, maxFeature,
maxIterator,imageScalingRatio);
}
void maxIteratorTrackBarScrolled(Action& event)
{
maxIterator = maxIteratorTrackBar->getPosition();
detectedImage->detect(minFeature, maxFeature,
maxIterator,imageScalingRatio);
}
void cancel(Action& action)
{
fileDialog->popdown();
}
void fileOpen(Action& action)
{
fileDialog->popup();
}
void updateLabel(const char* filename)
{
CompoundString cs(filename);
label->set(XmNlabelString, cs);
}
void ok(Action& action)
{
try {
imageFile = fileDialog->getFileName();
const char* filename = (const char*)imageFile;
printf("filename: %s\n", filename);
fileDialog->popdown();
originalImage->invalidate();
originalImage->loadImage(filename,
imageLoadingFlag, imageScalingRatio);
detectedImage->invalidate();
detectedImage->loadImage(filename,
imageLoadingFlag, imageScalingRatio);
detectedImage->detect(minFeature, maxFeature,
maxIterator,imageScalingRatio);
updateLabel(filename);
resize(width(), height());
flush();
} catch (OZ::Exception& ex) {
caught(ex);
}
}
void resize(Dimension w, Dimension h)
{
int CP_WIDTH = 200;
int LB_HEIGHT = 30;
int ww = w-CP_WIDTH;
int hh = h - LB_HEIGHT;
if (label && originalImage && detectedImage && controlPane
) {
label -> reshape(0, 0, w, LB_HEIGHT);
originalImage-> reshape(0, LB_HEIGHT, ww/2, hh);
detectedImage -> reshape(ww/2, LB_HEIGHT, ww/2-1, hh);
controlPane -> reshape(ww-1, LB_HEIGHT, CP_WIDTH+1, hh);
//The following two lines are a workaround to erase garbage.
controlPane -> unmap();
controlPane -> map();
}
flush();
}
public:
MainView(OpenCVApplication& applet, const char* name, Args& args)
:OpenCVMainView(applet, name, args)
{
BulletinBoard* bboard = getBulletinBoard();
imageFile = "../images/flower.png";
imageLoadingFlag = CV_LOAD_IMAGE_COLOR;
imageScalingRatio = 60; //%
try {
Args ar;
CompoundString fileNamecs((const char*)imageFile);
ar.set(XmNlabelString, fileNamecs);
ar.set(XmNalignment, XmALIGNMENT_BEGINNING);
label = new Label(bboard, "", ar);
ar.reset();
ar.set(XmNimageFileName, (const char*)imageFile);
ar.set(XmNimageLoadingFlag, imageLoadingFlag);
ar.set(XmNimageScalingRatio, imageScalingRatio);
originalImage = new OriginalImageView(bboard, "", ar);
ar.reset();
ar.set(XmNimageFileName, (const char*)imageFile);
ar.set(XmNimageLoadingFlag, imageLoadingFlag);
ar.set(XmNimageScalingRatio, imageScalingRatio);
detectedImage = new DetectedImageView(bboard, "", ar);
ar.reset();
controlPane = new RowColumn(bboard, "", ar);
const char* defaultScale = "60%";
ar.reset();
CompoundString scaler("Scale");
ar.set(XmNlabelString, scaler);
ar.set(XmNdefaultScale, defaultScale);
scaleComboBox = new OpenCVScaleComboBox(controlPane, "", ar);
scaleComboBox->addCallback(XmNselectionCallback, this,
(Callback)&MainView::scaleChanged, NULL);
minFeature = 100;
maxFeature = 210;
maxIterator = 10;
CompoundString cs1("MinFeature:[10, 200]");
ar.reset();
ar.set(XmNtitleString, cs1);
ar.set(XmNminimum, 10);
ar.set(XmNmaximum, 200);
ar.set(XmNvalue, minFeature);
minFeatureTrackBar = new LabeledTrackBar(controlPane, "minFeature", ar);
minFeatureTrackBar -> addCallback(XmNvalueChangedCallback, this,
(Callback)&MainView::minFeatureTrackBarScrolled, NULL);
CompoundString cs2("MaxFeature:[200, 400]");
ar.reset();
ar.set(XmNtitleString, cs2);
ar.set(XmNminimum, 200);
ar.set(XmNmaximum, 400);
ar.set(XmNvalue, maxFeature);
maxFeatureTrackBar = new LabeledTrackBar(controlPane, "maxFeature", ar);
maxFeatureTrackBar -> addCallback(XmNvalueChangedCallback, this,
(Callback)&MainView::maxFeatureTrackBarScrolled, NULL);
CompoundString cs3("MaxIterator:[5, 20]");
ar.reset();
ar.set(XmNtitleString, cs3);
ar.set(XmNminimum, 5);
ar.set(XmNmaximum, 20);
ar.set(XmNvalue, maxIterator);
maxIteratorTrackBar = new LabeledTrackBar(controlPane, "maxIterator", ar);
maxIteratorTrackBar -> addCallback(XmNvalueChangedCallback, this,
(Callback)&MainView::maxIteratorTrackBarScrolled, NULL);
detectedImage->detect(minFeature, maxFeature,
maxIterator,imageScalingRatio);
ar.reset();
fileDialog = new FileOpenDialog(this, "FileOpenDialog", ar);
fileDialog -> getOkButton()
-> addCallback(XmNactivateCallback, this,
(Callback)&MainView::ok, NULL);
sendConfigureEvent();
} catch(OZ::Exception& ex) {
caught(ex);
}
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* appclass = argv[0];
OpenCVApplication applet(appclass, argc, argv);
Args args;
args.set(XmNwidth, 900);
args.set(XmNheight, 380);
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (OZ::Exception& ex) {
caught(ex);
}
return 0;
}
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