Cannot derive from QImage class

#include <QObject>
#include <QImage>
class QtPhoto : public QImage
{
    Q_OBJECT
public:
    QtPhoto();
    ~QtPhoto();
};
Q_DECLARE_METATYPE(QtPhoto)
Q_DECLARE_OPAQUE_POINTER(QtPhoto *)

#include "QtPhoto.h"
#include <QObject>
#include <QImage>
QtPhoto::QtPhoto()
{
}
QtPhoto::~QtPhoto()
{
}

2>QtPhoto.cpp
2>moc_QtPhoto.cpp
2>C:\Users\Roger\source\repos\Projects\ImageViewers\Tinta\x64\Debug\moc\moc_QtPhoto.cpp(81,28): error C2227: left of '->metaObject' must point to class/struct/union/generic type
2>C:\Users\Roger\source\repos\Projects\ImageViewers\Tinta\x64\Debug\moc\moc_QtPhoto.cpp(89,20): error C2039: 'qt_metacast': is not a member of 'QImage'
2>C:\Qt\6.2.2\msvc2019_64\include\QtGui\qimage.h(72): message : see declaration of 'QImage'
2>C:\Users\Roger\source\repos\Projects\ImageViewers\Tinta\x64\Debug\moc\moc_QtPhoto.cpp(94,19): error C2039: 'qt_metacall': is not a member of 'QImage'
2>C:\Qt\6.2.2\msvc2019_64\include\QtGui\qimage.h(72): message : see declaration of 'QImage'