Save image from qml

[stereomatching]

I tried Canvas, can't work either
If you just need to load and save the image
here is a simple class for that

.hpp
@
#include <QImage>
#include <QObject>

class QQuickItem;
class QString;

class imageSaver : public QObject
{
Q_OBJECT
public:
explicit imageSaver(QObject *parent = 0);
imageSaver(imageSaver const&) = delete;
imageSaver& operator=(imageSaver const&) = delete;

public slots:
void load(QString const &path);
void loadAndSave(QString const &path);
void save(QString const &path) const;

private:
QImage img_;
};
@

.cpp
@
#include "imageSaver.hpp"

imageSaver::imageSaver(QObject *parent) :
QObject(parent)
{

}

void imageSaver::load(QString const &path)
{
img_.load(path);
}

void imageSaver::loadAndSave(QString const &path)
{
img_.load(path);
img_.save(path);
}

void imageSaver::save(const QString &path) const
{
img_.save(path);
}
@

if you need to take the result after postprocessing, take the screenshot
"take screenshot":http://qt-project.org/forums/viewthread/28822/

With these, we can keep on using the Image from qml2

no error handle, please refine it by yourself