pixel of Image display

[stampede]

How to make sure that the size of QImage is exactly the size i want in Pixel?

QImage image = ...;
int width = ...;
int height = ...;
QImage scaledImage = image.scaled(width, height, ...);

QImage image = ...;
int width = ...;
int height = ...;
QImage scaledImage = image.scaled(width, height, ...);

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