imx6q opencv performance

kangmw086 — Wed, 21 Nov 2018 06:25:27 GMT

i used imx6q sabreauto version.

My parallel camera is connected to ipu1.

I checked the various functions using 'gstreamer'.

'gstreamer' has reached its limit.

I want to output the camera live image to qt using 'opencv'.

It works, but the performance is too low.

It takes 310ms to receive the camera data and output it to the qlabel.

VideoCapture cap("imxv4l2videosrc device=/dev/video0 ! videoconvert ! video/x-raw,width=1280,height=960,framerate=30/1 ! appsink", CAP_GSTREAMER)

Mat frame;

cap >> frame; <--------- This command takes the most time.

1. the performance normal?

2. And others use 'cap (0)' a lot, but I can not work.

3. Is it possible to combine opencv with 'imx6' gpu?

I hope I have some sample code.

thank you

regards.

Re: imx6q opencv performance

Bio_TICFSL — Thu, 22 Nov 2018 15:38:50 GMT

Hi k,

It takes 11ms in my Sabreauto board, I guess you need to download the right version for it.

regards