[SOLVED] Best method to display a stream of QImage's
Hi all, id like to know which method is the most efficient to display Qimages - i have tried both and they seem pretty similar so far and want to know if there are ways to optimize them, or different better methods to go about this.
#1 having a QLabel in my QVBoxLayout and calling:
whenever there is a new frame.
#2 using a QGraphicsView in my QVBoxLayout and then using
both seem pretty CPU intensive.
I would go with QGraphicsView, and draw QImages in its paint event.
@ QImage img;
You could set some flags like: @p.setRenderHint(QPainter::SmoothPixmapTransform, true);@
Thanks, i did end up doing that - except i just have a QGraphicsItem which i keep calling
Is this way going to be more or less as quick as your paint method?
also what exactly would that flag do?
I don't know about the speed, its could be just as fast I guess. The method I suggested draws an image under 1ms. The flag I mentioned is used to get a better quality when scaling image.
Ok cheers Puksec! i might as well give both of them a go!