49 const QPointF &cursorPoint,
54 qreal lightnessStrength = 1.0);
58 const QPointF &cursorPoint,
63 qreal lightnessStrength = 1.0);
66 const QPointF &cursorPoint,
86 const QPointF &cursorPoint,
91 qreal lightnessStrength = 1.0,
92 bool forceNormalizedRGBAImageStamp =
false);