iMX8 qt cross compile use neon

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iMX8 qt cross compile use neon

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alonghong
Contributor I

Dear Sir

Now, I use iMX8 EVK and use bitbake fsl-image-qt5-validation-imx and bitbake fsl-image-qt5-validation-imx -c populate_sdk.

This is success to compile qt project and run in iMX8. But I use memcpy 1280*800*2 data to OpenCV Mat,

the memcpy needs to spend about 28mS, I find iMX is support neon function.

Neon can improve the speed, but I don't know how to use neon in the cross compile

Please kindly help me.

Thanks a lot.

Best regards.

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2 Replies

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Qmiller
NXP Employee
NXP Employee

The speed will not be improved if you use memcpy after opening the neon.

Recommand you use OpenCL with OpenCV.

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179 Views
alonghong
Contributor I

Hi Sir

How can I to use OpenCL with OpenCV?

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