#ifndef CANNYDIALOG_H
#define CANNYDIALOG_H

#include <QDialog>
#include <opencv2/opencv.hpp>
using namespace cv;
namespace Ui {
class CannyDialog;
}

class CannyDialog : public QDialog
{
    Q_OBJECT

public:
    explicit CannyDialog(QWidget *parent = nullptr);
    ~CannyDialog();


private slots:
    void on_buttonBox_accepted();

    void receiveImage(Mat);

    void on_SliNum_valueChanged(int value);

signals:
    void sendImage(Mat);

private:
    void flush();
    void calCanny();
    Ui::CannyDialog *ui;
    Mat image;
    Mat dst;
    int lowThreshold;
};

#endif // CANNYDIALOG_H