Tools.h

#ifndef TOOLS_H
#define TOOLS_H

#include <QVector2D>
#include <QVector3D>
#include <QtCore/qmath.h>
#include <QImage>
#include <QColor>

extern "C" {
#include "emd.h"
}

using namespace std;

vector<QVector3D> createSubImage(
    const int &x, const int &y,
    const int &width, const int &height,
    const QImage &orig);

QImage createSubImage(
    const QImage &image, const QRect & rect);

void createSubImage(
    const int &x, const int &y,
    const int &width, const int &height,
    const QVector2D &gradient, const QImage &orig,
    vector<QVector3D> &subImage1, vector<QVector3D> &subImage2);

void drawSubImage(int x, int y, const QImage &subImage, QImage &image);
void drawSubImage(int x, int y, int sideSize, const QColor &color, QImage &image);
void drawCross(int x, int y, int sideSize, const QColor &color, QImage &image);
void drawCircle(int x, int y, int sideSize, const QColor &color, QImage &image);

float colorDist(feature_t *F1, feature_t *F2);

float luminance(const QColor &color);

QImage flipImageHorizontally(const QImage &image);

float erf(float x);

#endif