[Qt-interest] Question about QImage smoothScale

[Khizer Kapadia]

I need to resize an image (from large to small) before performing some complex operations on it. The need to resize is so that the picture size (in bytes) is small, allowing faster operation.
 
I tried QImage::smoothScale and didn't notice any increase in speed. Does this kind of resizing decrease the size of image?. And what about QPixmap::resize?, does it perform a similar function?.
 
Thank you.
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