how get quick grabing of Qimage from QCameraimagecapture capture()
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Hi and welcome to devnet,
Which exact version of Qt ?
On which OS ?
Which device ?
Which camera ?
What is your application doing ?
QtQuick ?
QtWidgets ? -
What kind of high speed image processing do you want to do ?
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@SGaist
i Have to grab image for vision project with opencv in high speed (with in 100-200 ms) for total process including image processing. by using QCameraImageCapture it grab correct frame, but method capture() for Qimage emits a signal(int,const QImage &) make delay upto 100-150ms -
@Pl45m4
initially started project with opencv videocapture method to grab image from raspberry camera but it gives buffer(past image ).tried to solve that issues ,atlast got some hacks to get latest(current) image but not efficient ,I also tried raspicam_cv lib but its grabing time is little high ,in Qcamera gives current and exact image but method capture() emits a signal with delay of 100-150ms -
Can you describe your exact pipeline ?
From capturing to final step. -
I meant the business logic from the camera to the screen.